Caterpillar Inc.

United States of America

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E02F 9/28 - Small metalwork for digging elements, e.g. teeth 93
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1.

DUAL GAS TRAILER WITH SLIDING PISTON

      
Document Number 03214980
Status Pending
Filing Date 2023-09-28
Open to Public Date 2024-04-06
Owner CATERPILLAR INC. (USA)
Inventor
  • Wilks, Zachary J.
  • Deckard, Mitchel R.

Abstract

In some implementations, a dual gas transport system includes a trailer, one or more tanks mounted on the trailer, wherein each of the one or more tanks includes a first compai ____________ intent and a second compai anent, the first and second compartments being separated from each other by a sliding piston, and an electronic control module configured to control operations of the one or more tanks.

IPC Classes  ?

  • F17C 1/00 - Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
  • B65D 88/12 - Large containers rigid specially adapted for transport
  • B65D 88/62 - Large containers characterised by means facilitating filling or emptying by displacement of walls of internal walls the walls being deformable
  • F17C 13/00 - VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES - Details of vessels or of the filling or discharging of vessels

2.

DUAL GAS TRAILER WITH BLADDER SYSTEM

      
Document Number 03214978
Status Pending
Filing Date 2023-09-28
Open to Public Date 2024-04-06
Owner CATERPILLAR INC. (USA)
Inventor
  • Wilks, Zachary J.
  • Deckard, Mitchel R.

Abstract

In some implementations, a dual gas transport system includes a trailer, one or more tanks mounted on the trailer, wherein each of the one or more tanks includes a first compartment and a second compai anent, the first and second compartments being separated from each other by a bladder, and an electronic control module configured to control operations of the one or more tanks.

IPC Classes  ?

  • B60P 3/24 - Tank vehicles compartmented
  • B65D 88/54 - Large containers characterised by means facilitating filling or emptying
  • B65D 90/02 - Wall construction
  • F17C 1/00 - Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge

3.

ENGINE LOAD CONTROL DURING A TRANSIENT EVENT

      
Document Number 03210173
Status Pending
Filing Date 2023-08-25
Open to Public Date 2024-03-01
Owner CATERPILLAR, INC. (USA)
Inventor
  • He, Yuesheng
  • Kabrich, Todd R.

Abstract

In some implementations, a controller may determine, in connection with a constant speed operation of an engine operable by spark ignition of a gaseous fuel, that a transient event associated with the engine is to occur, the transient event to cause a shift from a first gear to a second gear of a transmission coupled to the engine, where the shift from the first gear to the second gear is to increase a primary load associated with the engine. The controller may cause, prior to the shift from the first gear to the second gear, increasing of an auxiliary load associated with the engine. The controller may cause, during the shift from the first gear to the second gear, decreasing of the auxiliary load.

IPC Classes  ?

  • B60K 17/06 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
  • B60W 10/02 - Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
  • B60W 10/10 - Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
  • F02D 29/00 - Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
  • F16H 59/00 - Control inputs to change-speed- or reversing-gearings for conveying rotary motion

4.

LIFTING CAPACITY SYSTEMS AND METHODS FOR LIFTING MACHINES

      
Document Number 03209901
Status Pending
Filing Date 2023-08-22
Open to Public Date 2024-02-29
Owner CATERPILLAR INC. (USA)
Inventor
  • Gnagey, Aaron J.
  • Hoyt, Daniel W.

Abstract

A lifting machine (10) includes a machine chassis (12), a boom (22) extending from the machine chassis (12), a connector (38) extending from the boom (22) for coupling to a load (90), a control system (60) that determines a rated lifting capacity (202) of the machine (10), based on an orientation of the machine chassis (12), and a lifting load (204), and a display (76). The display (76) indicates the rated lifting capacity (202) relative to a total lifting capacity (200), and the display (76) also indicates the lifting load (204) relative to the rated lifting capacity (202) and the total lifting capacity (200).

IPC Classes  ?

  • B66C 23/76 - Counterweights or supports for balancing lifting couples separate from jib and movable to take account of variations of load or of variations of length of jib
  • B66C 13/16 - Applications of indicating, registering, or weighing devices
  • B66C 23/36 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes specially adapted for use in particular locations or for particular purposes mounted on road or rail vehicles; Manually-movable jib cranes for use in workshops; Floating cranes
  • F16L 1/024 - Laying or reclaiming pipes on land, e.g. above the ground

5.

FLUID PUMP HEALTH PROTECTION

      
Document Number 03209025
Status Pending
Filing Date 2023-08-09
Open to Public Date 2024-02-15
Owner CATERPILLAR INC. (USA)
Inventor
  • He, Yuesheng
  • Publes, Andy
  • Paul, Mark C.
  • Grimes, Mark F.

Abstract

In some implementations, a controller may monitor, in connection with a fluid pump driven by a motor that is controlled by a variable frequency drive and over a time period, a torque of the motor to obtain torque data, a speed of the motor to obtain speed data, and a pressure of the fluid pump to obtain pressure data. The controller may determine that the fluid pump is associated with a leak of a particular severity level based on the torque data indicating a deviation that satisfies a first threshold, the speed data indicating a deviation that satisfies a second threshold, and the pressure data indicating a deviation that satisfies a third threshold. The controller may perform at least one operation based on the particular severity level of the leak.

IPC Classes  ?

  • E21B 47/117 - Detecting leaks, e.g. from tubing, by pressure testing
  • E21B 43/26 - Methods for stimulating production by forming crevices or fractures
  • F04B 49/10 - Other safety measures

6.

CONTROL OF A DUAL-PUMP SINGLE-POWER SOURCE SYSTEM

      
Document Number 03206661
Status Pending
Filing Date 2023-07-14
Open to Public Date 2024-01-19
Owner CATERPILLAR INC. (USA)
Inventor
  • Peterson, Lucas J.
  • Voiculescu, David A.
  • Publes, Andy
  • Grimes, Mark F.

Abstract

In some implementations, a controller may obtain a set of measurement values associated with the dual-pump single-power source system, wherein the set of measurement values includes at least one of one or more speed measurements associated with a clutch that is coupled to a power source and a first pump of the dual-pump single-power source system, a measurement value indicating an output speed of the power source, or a first crank angle associated with the first pump and a second crank angle associated with a second pump of the dual-pump single-power source system. The controller may detect that the clutch is experiencing slippage based on comparing at least two measurement values of the set of measurement values. The controller may perform an action to cause the clutch to disengage a mechanical connection between the first pump and the power source while the power source is running and is mechanically connected to the second pump.

IPC Classes  ?

  • E21B 43/26 - Methods for stimulating production by forming crevices or fractures
  • F02D 29/04 - Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving pumps
  • F04B 17/00 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors
  • F04B 23/04 - Combinations of two or more pumps
  • F04B 49/00 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups
  • F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure

7.

CONTROL OF A DUAL-PUMP SINGLE-POWER SOURCE SYSTEM

      
Document Number 03206663
Status Pending
Filing Date 2023-07-14
Open to Public Date 2024-01-19
Owner CATERPILLAR INC. (USA)
Inventor
  • Peterson, Lucas J.
  • Voiculescu, David A.
  • Publes, Andy
  • Grimes, Mark F.

Abstract

In some implementations, a controller may obtain an indication of a first crank angle associated with a first pump, of a dual-pump single-power source system, that is mechanically connected to a power source of the dual- pump single-power source system via a first clutch. The controller may obtain an indication of a second crank angle associated with a second pump, of the dual- pump single-power source system, that is mechanically connected to the power source via a second clutch. The controller may determine that a difference between the first crank angle and the second crank angle is outside of a tolerance of a crank angle difference value. The controller may modulate a fluid pressure associated with at least one of the first clutch or the second clutch to cause the difference between the first crank angle and the second crank angle to be within the tolerance of the crank angle difference value.

IPC Classes  ?

  • E21B 43/26 - Methods for stimulating production by forming crevices or fractures
  • F02D 29/04 - Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving pumps
  • F04B 17/00 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors
  • F04B 23/04 - Combinations of two or more pumps
  • F04B 49/00 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups
  • F16C 3/22 - Cranks; Eccentrics
  • F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure

8.

ELECTRIC FRACTURING DRIVETRAIN

      
Document Number 03205188
Status Pending
Filing Date 2023-06-29
Open to Public Date 2024-01-12
Owner CATERPILLAR INC. (USA)
Inventor Peterson, Lucas J.

Abstract

In some implementations a drivetrain may include a power source configured to drive a fluid pump. The drivetrain may include the fluid pump. The drivetrain may include a driveshaft configured to transfer power that is output by the power source to the fluid pump. The drivetrain may include a coupling including an elastomeric element, wherein the coupling couples the driveshaft to the power source or to the fluid pump, wherein a rotational stiffness of the elastomeric element is based on one or more resonant frequencies of the drivetrain and an operational speed range of the power source, and wherein the coupling is configured to transfer the power that is output by the power source through the elastomeric element.

IPC Classes  ?

  • E21B 43/26 - Methods for stimulating production by forming crevices or fractures
  • F04B 23/00 - Pumping installations or systems

9.

MOUNTING SYSTEM FOR WORK MACHINE

      
Document Number 03201707
Status Pending
Filing Date 2023-06-02
Open to Public Date 2023-12-09
Owner CATERPILLAR, INC. (USA)
Inventor
  • Mathew, Shawn N.
  • Milkowski, Arthur
  • Plouzek, John M.
  • Lay, Norman K.
  • Shaik, Subhani M.

Abstract

A mounting system (200, 300, 400) for a work machine (100, 600, 800) includes a first member (206, 306, 406) extending along a vertical axis (A1) of the mounting system (200, 300, 400), and a second member (212, 312, 412) extending along the vertical axis (A1) and spaced apart from the first member (206, 306, 406) along a lateral axis (A2) of the mounting system (200, 300, 400). The mounting system (200, 300, 400) also includes a bracket assembly (222, 322, 422) extending between the first member (206, 306, 406) and the second member (212, 312, 412). The bracket assembly (222, 322, 422) is disposable at a location along the vertical axis (A1) based on a removable coupling of the bracket assembly (222, 322, 422) with each of the first member (206, 306, 406) and the second member (212, 312, 412). The mounting system (200, 300, 400) further includes an imaging device (262, 362, 462) coupled with the bracket assembly (222, 322, 422). A position of the imaging device (262, 362, 462) is adjustable with respect to a lateral axis (A2) of the mounting system (200, 300, 400) and the vertical axis (A1), such that a portion of a work implement (130, 830) of the work machine (100, 600, 800) lies in a field of view of the imaging device (262, 362, 462).

IPC Classes  ?

  • F16M 1/00 - Frames or casings of engines, machines, or apparatus; Frames serving as machinery beds
  • B60R 11/04 - Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
  • F16M 11/04 - Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand

10.

MACHINE WITH A BOOM LINK AND POSITION SENSOR

      
Document Number 03199414
Status Pending
Filing Date 2023-05-12
Open to Public Date 2023-11-25
Owner CATERPILLAR, INC. (USA)
Inventor
  • Armstrong, Vincent A.
  • Callaway, Joshua D.
  • Bright, Christopher E.
  • Terry, Benjamin J.
  • Layko, Michael C.

Abstract

A machine (10) may include a body (12), a boom link (30), a swing casting (31), and a boom (20). The boom (20) and the swing casting (31) may be configured to rotate horizontally about an axis (34) through the boom link (30). The machine (10) may further include a mounting bracket (46) fixedly connected to the swing casting (31), a position sensor (38) fixedly connected to the boom link (30), a first link (42) fixedly connected at a first end (56) to the position sensor (38) and configured to rotate about an axis through a rotary element (48), and a second link (44) fixedly connected at a first end (50) to the mounting bracket (46) and at a second end (52) to a second end (54) of the first link (42). The first link (42) and the second link (44) may be configured to rotate horizontally with horizontal rotation of the boom (20) and the swing casting (31) and to transfer the horizontal rotation of the boom (20) and the swing casting (31) to the rotary element (48).

IPC Classes  ?

11.

MODIFYING A ROTATIONAL POSITION OF A BOOM OF A MACHINE

      
Document Number 03199498
Status Pending
Filing Date 2023-05-12
Open to Public Date 2023-11-18
Owner CATERPILLAR, INC. (USA)
Inventor
  • Callaway, Joshua D.
  • Pahl, Justin P.

Abstract

A method may include receiving, from a position sensor (38) associated with a machine (10), data indicative of a horizontal rotation angle (32) of a boom (20) of the machine (10). The position sensor (38) may be fixedly mounted to a boom link (30) of the machine (10) and may be fixedly connected through one or more links to the boom (20). The method may further include sending, to a boom actuator (40), one or more commands to modify a horizontal position of the boom (20) to a target horizontal position or to a default horizontal position. The target horizontal position may include a position of the boom (20) prior to drift in the horizontal position during operation of linkage elements of the machine (10) and the default horizontal position may include a position of the boom (20) to which the boom (20) is to return after use.

IPC Classes  ?

  • E02F 9/20 - Drives; Control devices
  • E02F 3/43 - Control of dipper or bucket position; Control of sequence of drive operations
  • E02F 9/14 - Booms; Cable suspensions
  • E02F 9/24 - Safety devices

12.

HOUSE SWING SENSOR FOLLOWER PINION

      
Document Number 03198505
Status Pending
Filing Date 2023-05-02
Open to Public Date 2023-11-11
Owner CATERPILLAR, INC. (USA)
Inventor
  • Armstrong, Vincent A.
  • Callaway, Joshua D.
  • Bright, Christopher E.
  • Terry, Benjamin J.

Abstract

A follower pinion apparatus (402) can include a swing gear system comprised of a swing gear (406) and a swing motor pinion (604). The follower pinion apparatus can also include a nonmetallic follower pinion (404) positioned to mesh with the swing gear and a sensor (702) configured to sense a position of the follower pinion.

IPC Classes  ?

13.

SYSTEMS AND METHODS FOR CONTROLLING A MACHINE IMPLEMENT

      
Document Number 03198504
Status Pending
Filing Date 2023-05-02
Open to Public Date 2023-11-05
Owner CATERPILLAR, INC. (USA)
Inventor
  • Mason, David B.
  • Gerth, Christopher M.
  • Krone, Bradley P.
  • Evenson, Richard R.
  • Lusk, Kade S.

Abstract

A control system for a machine includes a chassis, an implement attached to the chassis, at least one sensor coupled to the chassis or the implement, and a controller in communication with the sensor. The controller is configured to receive one or more signals from the at least one sensor, determine a stabilization factor based on the one or more signals from the at least one sensor, and signal one or more actuators to control a movement and/or a position of the implement based at least in part on the stabilization factor.

IPC Classes  ?

  • G05D 3/12 - Control of position or direction using feedback
  • E02F 9/20 - Drives; Control devices

14.

SYSTEM FOR MANAGING PUMP LOAD

      
Document Number 03197151
Status Pending
Filing Date 2023-04-16
Open to Public Date 2023-10-19
Owner CATERPILLAR INC. (USA)
Inventor
  • He, Yuesheng
  • Kabrich, Todd R.
  • Otten, Casey A.

Abstract

An example system includes a fluid end having a block, a fluid inlet formed in the block, and a fluid outlet formed in the block. The system also includes an intake manifold fluidly coupled to the fluid inlet, and a fluid conduit fluidly coupled to the fluid outlet and the intake manifold. The system further includes a valve fluidly coupled to the fluid conduit, the valve configured to control fluid flow through the fluid conduit, an actuator coupled to the valve and configured to position the valve in an open position or a closed position, and a controller communicatively coupled to the actuator and configured to send one or more signals to the actuator, causing the actuator to position the valve in the open position or the closed position.

IPC Classes  ?

  • F01B 25/02 - Regulating or controlling by varying working-fluid admission or exhaust, e.g. by varying pressure or quantity
  • E21B 43/26 - Methods for stimulating production by forming crevices or fractures
  • F01B 25/04 - Sensing elements
  • F01B 27/00 - Starting of machines or engines
  • F04B 17/00 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors
  • F04B 17/03 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
  • F04B 23/04 - Combinations of two or more pumps

15.

FRONT AXLE FOR MINING MACHINES

      
Document Number 03194544
Status Pending
Filing Date 2023-03-29
Open to Public Date 2023-09-30
Owner CATERPILLAR INC. (USA)
Inventor
  • Sivakumar, Dinesh
  • Ehuraj, Regini S.
  • Fujan, Steven J.
  • Shaffer, Scott M.

Abstract

An axle, for a mining machine, includes one or more segments, each defining a first wall portion, a second wall portion disposed opposite to the first wall portion, a third wall portion, and a fourth wall portion. The third wall portion extends between the first and the second wall portions to meet the first wall portion at a first corner portion and the second wall portion at a second corner portion. The fourth wall portion extends between the first and the second wall portions to meet the first wall portion at a third corner portion and the second wall portion at a fourth corner portion. The second thickness of the second corner portion and the third thickness of the third corner portion are greater than each of the first thickness of the first corner portion and the fourth thickness of the fourth corner portion.

IPC Classes  ?

  • B60B 35/08 - Dead axles, i.e. not transmitting torque of closed hollow section
  • B60P 1/00 - Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
  • E21F 13/00 - Transport specially adapted to underground conditions
  • E21F 17/00 - Methods or devices for use in mines or tunnels, not covered elsewhere

16.

OPTIMIZING OPERATIONS OF A HYDRAULIC FRACTURING SYSTEM

      
Document Number 03192531
Status Pending
Filing Date 2023-03-09
Open to Public Date 2023-09-11
Owner CATERPILLAR INC. (USA)
Inventor
  • Kabrich, Todd R.
  • Publes, Andy
  • Otten, Casey A.
  • Mabe, Brandon J.
  • Converse, Perry D.
  • Herlehy, Jason T.
  • Bufkin, Joseph C.

Abstract

A method may include receiving information related to operation or a configuration of a hydraulic fracturing system, The hydraulic fracturing system may include one or more fracturing rigs, one or more blending equipment, and one or more power sources electrically connected to a first subset of the one or more fracturing rigs, or one or more fuel sources fluidly connected to a second subset of the one or more fracturing rigs. The hydraulic fracturing system may further include one or more missile valves, one or more zipper valves, one or more well head valves, and one or more well heads. The method may further include optimizing the operation of one or more subsystems of the hydraulic fracturing system using a particle swarm algorithm. The method may further include outputting one or more control signals to the one or more subsystems based on optimizing the operation.

IPC Classes  ?

  • E21B 43/26 - Methods for stimulating production by forming crevices or fractures
  • F01B 25/02 - Regulating or controlling by varying working-fluid admission or exhaust, e.g. by varying pressure or quantity
  • F04B 49/06 - Control using electricity
  • F16K 31/46 - Mechanical actuating means for remote operation

17.

CONTROLLING FLUID PRESSURE AT A WELL HEAD BASED ON AN OPERATION SCHEDULE

      
Document Number 03192712
Status Pending
Filing Date 2023-03-09
Open to Public Date 2023-09-11
Owner CATERPILLAR INC. (USA)
Inventor
  • Kabrich, Todd R.
  • Publes, Andy
  • Otten, Casey A.
  • Mabe, Brandon J.
  • Converse, Perry D.
  • Herlehy, Jason T.

Abstract

A method may include monitoring, for a well head of a hydraulic fracturing system, an operation or a state of one or more subsystems of the hydraulic fracturing system. The hydraulic fracturing system may include one or more fracturing rigs, one or more blending equipment, and one or more power sources electrically connected to a first subset of the one or more fracturing rigs, or one or more fuel sources fluidly connected to a second subset of the one or more fracturing rigs. The hydraulic fracturing system may further include one or more missile valves, one or more zipper valves, one or more well head valves, and one or more well heads. The method may further include controlling, based on an operation schedule for the hydraulic fracturing system and based on monitoring the operation or the state, the state or equipment changes.

IPC Classes  ?

  • E21B 43/26 - Methods for stimulating production by forming crevices or fractures
  • F01B 25/02 - Regulating or controlling by varying working-fluid admission or exhaust, e.g. by varying pressure or quantity
  • F04B 49/06 - Control using electricity
  • F16K 31/46 - Mechanical actuating means for remote operation

18.

SYSTEMS AND METHODS FOR AN ELECTRIC MACHINE

      
Document Number 03189298
Status Pending
Filing Date 2023-02-11
Open to Public Date 2023-08-17
Owner CATERPILLAR, INC. (USA)
Inventor Robinson, Andrew B.

Abstract

A machine charging system (10) includes a machine (12), a charging unit (14), at least one user locator (18), and a control system (100). The machine (12) includes one or more batteries (20), a cab (28), and a temperature control system (100). The charging unit (14) is configured to be removably coupled to the machine (12) via a cable (16). The control system (100) includes a controller (102) in communication with the at least one user locator (18) and the temperature control system (100). When the controller (102) detects that the at least one user locator (18) is within a predetermined distance from the machine (12) while the machine (12) is coupled to the charging unit (14), the controller (102) initiates one or more pre-start or pre-conditioning procedures with the temperature control system (100) to control a temperature of one or more components of the machine (12).

IPC Classes  ?

  • G05D 23/19 - Control of temperature characterised by the use of electric means
  • B60L 58/27 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

19.

CONTROLLING A DISCHARGE PRESSURE FROM A PUMP

      
Document Number 03187881
Status Pending
Filing Date 2023-01-27
Open to Public Date 2023-07-31
Owner CATERPILLAR, INC. (USA)
Inventor
  • Grimes, Mark F.
  • Publes, Andy
  • Paul, Mark C.

Abstract

In some implementations, a controller may obtain a setting for a maximum discharge pressure associated with a fluid pump that is to be allowed during a hydraulic fracturing operation. The fluid pump may be driven by a motor that is controlled by a variable frequency drive (VFD). The controller may determine a maximum torque for the motor that achieves the maximum discharge pressure. The controller may cause, via the VFD, adjustment to a speed of the motor to maintain a torque of the motor at or below the maximum torque for the motor.

IPC Classes  ?

  • F04B 49/06 - Control using electricity
  • E21B 41/00 - Equipment or details not covered by groups
  • E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
  • E21B 43/26 - Methods for stimulating production by forming crevices or fractures
  • F04B 49/20 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by changing the driving speed

20.

CONTROLLING A POWER DEMAND OF A HYDRAULIC FRACTURING SYSTEM

      
Document Number 03187892
Status Pending
Filing Date 2023-01-27
Open to Public Date 2023-07-31
Owner CATERPILLAR INC. (USA)
Inventor
  • Publes, Andy
  • Grimes, Mark F.
  • Kabrich, Todd R.
  • Paul, Mark C.
  • Benguedda, Riadh

Abstract

In some implementations, a controller may monitor an available power supply of at least one power source for a system for hydraulic fracturing, and a current power demand of the system. The controller may determine, based on monitoring the available power supply and the current power demand, whether a relationship between the current power demand and the available power supply is indicative of an impending power failure. The controller may cause, based on determining that the relationship between the current power demand and the available power supply indicates the impending power failure, reduction of flow rates of one or more fluid pumps of the system to reduce the current power demand.

IPC Classes  ?

  • F04B 49/06 - Control using electricity
  • E21B 41/00 - Equipment or details not covered by groups
  • E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
  • E21B 43/26 - Methods for stimulating production by forming crevices or fractures
  • F04B 49/20 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by changing the driving speed

21.

ASYMMETRIC POWER MANAGEMENT AND LOAD MANAGEMENT

      
Document Number 03187124
Status Pending
Filing Date 2023-01-18
Open to Public Date 2023-07-24
Owner CATERPILLAR, INC. (USA)
Inventor
  • Publes, Andy
  • Otten, Casey A.
  • Converse, Perry D.
  • Zhang, Yanchai
  • Cai, Zhijun
  • Deng, Baoyang
  • Haddad, Christopher G.Y.
  • Herlehy, Jason T.
  • Kabrich, Todd R.
  • Ahmad, Nausheen
  • Bufkin, Joseph C.

Abstract

A method may include receiving information related to operation or a configuration of a hydraulic fracturing system. The hydraulic fracturing system may include a plurality of electric power source outputs and a plurality of hydraulic fracturing rigs. The method may further include performing, based on the information, asymmetric power management of the plurality of electric power source outputs. The method may further include performing, based on the information, asymmetric load management of the plurality of hydraulic fracturing rigs.

IPC Classes  ?

  • E21B 41/00 - Equipment or details not covered by groups
  • E21B 43/26 - Methods for stimulating production by forming crevices or fractures

22.

MONITORING RAMP-UP PRESSURE OF A PUMP

      
Document Number 03186445
Status Pending
Filing Date 2023-01-16
Open to Public Date 2023-07-21
Owner CATERPILLAR, INC. (USA)
Inventor
  • Kabrich, Todd R.
  • Otten, Casey A.
  • He, Yuesheng

Abstract

A method may include monitoring, by a controller, operation of a pump of at least one hydraulic fracturing rig during ramp-up of the pump. Each of the at least one hydraulic fracturing rig may further include an engine and a transmission. The method may further include detecting, by the controller, an issue in the operation of the pump based on the monitoring of the operation and performing an action based on the detecting of the issue.

IPC Classes  ?

  • F04B 49/06 - Control using electricity
  • E21B 41/00 - Equipment or details not covered by groups
  • E21B 43/26 - Methods for stimulating production by forming crevices or fractures
  • F04B 23/04 - Combinations of two or more pumps
  • F04B 49/02 - Stopping, starting, unloading or idling control
  • F04B 51/00 - Testing machines, pumps, or pumping installations

23.

OPTIMIZING OPERATION OF A MIXED FLEET OF HYDRAULIC FRACTURING RIGS

      
Document Number 03184599
Status Pending
Filing Date 2022-12-22
Open to Public Date 2023-07-18
Owner CATERPILLAR INC. (USA)
Inventor
  • Zhang, Yanchai
  • Olsen, Erik L.
  • Otten, Casey A.
  • Publes, Andy

Abstract

A method may include receiving a set of inputs for operation of at least one electric hydraulic fracturing rig and at least one mechanical hydraulic fracturing rig of a hydraulic fracturing system. The method may further include optimizing operation of the at least one electric hydraulic fracturing rig and the at least one mechanical hydraulic fracturing rig based on at least the set of inputs. The method may further include iterating the optimization using a cost function for an operation mode of the hydraulic fracturing system.

IPC Classes  ?

  • E21B 41/00 - Equipment or details not covered by groups
  • E21B 43/26 - Methods for stimulating production by forming crevices or fractures

24.

GENERATOR SET-ENGINE LOAD MANAGEMENT TECHNIQUES

      
Document Number 03183975
Status Pending
Filing Date 2022-12-13
Open to Public Date 2023-06-21
Owner CATERPILLAR INC. (USA)
Inventor
  • Mishra, Abhishek K.
  • Namachivayam, Rajaram
  • Fraysure, Iii, Paul W.
  • Osborne, Gareth
  • English, William R.
  • Worrall, Christopher J.

Abstract

A generator set (10, 400) configured to provide an electrical output (404, 520) to an external electrical load (20). The generator set (10, 400) includes an engine configured to drive an electric generator (14), the engine including an engine block (102, 202), where the electric generator (14) is configured to couple to the external electrical load (20). The generator set (10, 400) includes a heating system in fluid communication with the engine block (102, 202), the heating system including an electric fluid heater (106, 206, 402), where the electric fluid heater includes a resistive load (306) configured to supplement the external electrical load (20). The generator set (10, 400) includes a control system (410) for: monitoring a first parameter of the engine; generating a first control signal (416) in response to the first parameter being less than a first threshold; and increasing the external electrical load (20) by turning on the electric fluid heater (106, 206, 402) in response to the first control signal (416).

25.

LIFTING DEVICES AND METHODS

      
Document Number 03183515
Status Pending
Filing Date 2022-11-30
Open to Public Date 2023-06-16
Owner CATERPILLAR INC. (USA)
Inventor
  • Sekulich, Michael S.
  • Pillis, Jeffrey M.
  • Jarosiewicz, Diana K.
  • Nienke, Trevor C.
  • Furr, Henry L.
  • Rominger, Mark A.

Abstract

A lift coupling system (22) includes a lifting base (24) attachable to an object (1). The lifting base includes a housing (50). Lift pins (70) move between a retracted state within the housing and an extended state wherein a portion of each of the lift pins extend outwardly from the housing. An actuator (36) moves the lift pins between the retracted and extended state. A lift collar (26) includes a lift collar body (58) configured to fit about the housing. The lift collar contacts and couples the lift pins to the lift collar when positioned about the housing and the lift pins are in the extended state and decouple therefrom when the lift pins are in the retracted state.

IPC Classes  ?

  • B66C 1/66 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
  • B60S 11/00 - Vehicle modifications for receiving separate lifting, supporting, or manoeuvring devices

26.

HYDROGEN ENERGY STORAGE FOR POWER TIME SHIFTING

      
Document Number 03182851
Status Pending
Filing Date 2022-11-25
Open to Public Date 2023-05-30
Owner CATERPILLAR, INC. (USA)
Inventor
  • Mabe, Brandon J.
  • Anderson, Mark D.

Abstract

An energy storage system and a hydrogen energy storage controller for power time shifting are described herein. The energy storage system allows for the selection of which energy source. The energy storage system further allows for a determination as to whether or not excess energy should be stored, used, or sold. The energy storage system can use historical data to predict energy usage and costs in the future to further refine energy usage, storage, or sale determinations.

27.

OPTIMIZED OPERATION PLAN FOR A POWER SYSTEM

      
Document Number 03180515
Status Pending
Filing Date 2022-10-31
Open to Public Date 2023-05-19
Owner CATERPILLAR, INC. (USA)
Inventor
  • Zhang, Yanchai
  • Hussain, Syed Ameenuddin
  • Deng, Baoyang
  • Cai, Zhijun
  • Beyene, Shiferaw
  • Otten, Casey Alan
  • Converse, Perry D.
  • Wiersema, Theodore E.
  • Snopko, Michael A.

Abstract

A system (102) may determine configuration information associated with a power system (108) for a work site (106) that includes one or more power sources (110). The system (102) may determine respective operation parameters of the one or more power sources (110) and one or more performance criteria associated with the power system (108). The system (102) may determine a baseline operation plan for the power system (108). The system (102) may identify an optimization analysis technique and may process, using the optimization analysis technique, the configuration information associated with the power system (108), the respective operation parameters of the one or more power sources (110), and the one or more performance criteria associated with the power system (108) to generate the optimized operation plan for the power system (108). The system (102) may cause, based on the baseline operation plan for the power system (108) and the optimized operation plan for the power system (108), one or more actions to be performed.

IPC Classes  ?

  • H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
  • H02J 4/00 - Circuit arrangements for mains or distribution networks not specified as ac or dc

28.

HEAT EXCHANGER WITH COOLANT MANIFOLD

      
Document Number 03180063
Status Pending
Filing Date 2022-10-26
Open to Public Date 2023-05-09
Owner CATERPILLAR INC. (USA)
Inventor
  • Chen, Allen Y.
  • Van Farowe, Jason L.
  • Schuricht, Scott R.
  • Zeitler, Kyle V.

Abstract

Apparatuses and methods are disclosed including heat exchanger (106) for an internal combustion engine (100). The heat exchanger (106) can include a main body (127), a manifold (122) and one or more outlet ports (124A, 124B, 124C). The main body (127) can have an inlet and an outlet to receive/pass a coolant on a first side (128) thereof. The main body (127) can have a fluid inlet and fluid outlet configured to receive a fluid. The main body (127) can pass the fluid in a heat exchange relationship with the coolant. The manifold (122) can be coupled to the main body (127) on a second side (130). The manifold (122) can be in fluid communication with a main coolant outlet passage (148) to receive a portion of the coolant from the main body (127). The one or more outlet ports (124A, 124B, 124C) can be fluidly connected to the manifold (122) and passing the portion of the coolant to one or more engine auxiliary systems.

IPC Classes  ?

  • F01P 11/04 - Arrangements of liquid pipes or hoses
  • F01P 3/18 - Arrangement or mounting of liquid-to-air heat-exchangers
  • F28F 9/02 - Header boxes; End plates

29.

UNDERMOUNT FOR EGR COOLER

      
Document Number 03180059
Status Pending
Filing Date 2022-10-26
Open to Public Date 2023-05-03
Owner CATERPILLAR INC. (USA)
Inventor
  • Chen, Allen Y.
  • Walters, Dean W.
  • Van Farowe, Jason L.
  • Gould, Deforest C.

Abstract

An exhaust gas recirculation (EGR) cooler (100) for mounting to a coolant collector bracket (200) may include a cooler body (111) having a top (116), a bottom (118), a length (120) extending in a longitudinal direction, and a width (140) extending in a lateral direction perpendicular to the longitudinal direction, and at least one mount (150, 152) coupled to the bottom (118) of the cooler body (110). An interior of the mount (150, 152) may be in fluid communication with an interior of the cooler body (110). A width (190) of the at least one mount (150, 152) in the lateral direction of the cooler body (110) may be equal to or less than the width (140) of the cooler body (110). The at least one mount (150, 152) may be positioned such that the mount (150, 152) does not extend beyond the width (140) of the cooler body (110).

IPC Classes  ?

  • F02M 26/29 - Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
  • F02M 26/30 - Connections of coolers to other devices, e. g. to valves, heaters, compressors or filters; Coolers characterised by their location on the engine

30.

HYDRAULIC SYSTEMS FOR GRADING MACHINES

      
Document Number 03179249
Status Pending
Filing Date 2022-10-18
Open to Public Date 2023-04-25
Owner CATERPILLAR INC. (USA)
Inventor
  • Stoops, Ernest E.
  • Harshman, Nathaniel K.
  • Bloot, Jonathan M.

Abstract

A hydraulic system (300) for operating a circle drive gear of a grading machine (100) includes a pump (330) configured to output pressurized fluid, a directional control valve (310) fluidly coupled to the pump (330), a bidirectional hydraulic motor (350) located downstream of the directional control valve (310) and fluidly coupled to the directional control valve (310) via hydraulic lines (252). The hydraulic motor (350) has an output shaft that is configured to be rotationally driven by pressurized fluid output by the pump (330). Dual counterbalance valves (340) may be disposed within the hydraulic circuit of the directional control valve (310) and hydraulic motor (350) such that any gearbox driven by the hydraulic motor (350) is protected from external opposing forces. Accordingly, motion in the circle drive system (200) is hydraulically locked at the beginning and release of a circle rotation command with the help of fluid pressure in the hydraulic lines (252). Date Recue/Date Received 2022-10-18

IPC Classes  ?

  • E02F 3/85 - Applications of hydraulic or pneumatic systems

31.

SYSTEM AND METHOD FOR CHARGING AN ELECTRIC VEHICLE

      
Document Number 03233593
Status Pending
Filing Date 2022-09-27
Open to Public Date 2023-04-13
Owner CATERPILLAR INC. (USA)
Inventor
  • Othman, Jeffery
  • Converse, Perry D.
  • Brewer, Michael A.
  • Barnickel, William E.
  • Vitale, Andrew J.

Abstract

A system (1) and method (100) for charging a plug-in electric vehicle (10) are disclosed. The system (1) includes a plug-in electric vehicle (10) having a frame (11), a rechargeable battery pack (14), a vehicle inlet (15), a positioning module (18), and a first communication module (19); and a battery charging station (20) having a plurality of connectors (21), an actuation mechanism (22), and a second communication module (23). The battery charging station (20) is in operative communication with the PEV (10), can anticipate an arrival of the PEV (10), and can ready a connector (21(a)) corresponding to the PEV's (10) vehicle inlet type. The method (100) includes monitoring one or more characterising parameters of a PEV (10), determining that the PEV (10) needs charging, routing the PEV (10) to a battery charging station (20), transmitting forecasting information and an identity of the PEV (10) to the battery charging station (20), and charging the PEV (10) at the battery charging station (20).

IPC Classes  ?

  • B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
  • B60L 53/30 - Constructional details of charging stations
  • B60L 53/35 - Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
  • B60L 53/62 - Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
  • B60L 53/65 - Monitoring or controlling charging stations involving identification of vehicles or their battery types
  • B60L 53/66 - Data transfer between charging stations and vehicles
  • B60L 53/68 - Off-site monitoring or control, e.g. remote control
  • B60L 58/12 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]

32.

TRACK SHOE ASSEMBLY INCLUDING A SHOE PLATE AND A GROUSER AND RELATED METHOD OF MANUFACTURE

      
Document Number 03233386
Status Pending
Filing Date 2022-09-27
Open to Public Date 2023-04-13
Owner CATERPILLAR INC. (USA)
Inventor
  • Johannsen, Eric J.
  • Steiner, Kevin L.
  • Sebright, Jason L.
  • Clarke, Donovan S.

Abstract

In at least one aspect, a track shoe assembly includes a shoe plate having a shoe plate body including at least one shoe plate attachment surface defining a groove extending along a width of the shoe plate body, and a grouser having a grouser body having at least one grouser attachment surface, a cross-sectional shape of the at least one grouser attachment surface being the same as a cross-sectional shape of the groove defined by the at least one shoe plate attachment surface.

IPC Classes  ?

  • B62D 55/28 - Ground-engaging parts or elements detachable

33.

PROGNOSTIC LIMITATION TO FUEL CELL POWER OUTPUT FOR IMPROVED EFFICIENCY IN MOBILE MACHINE

      
Document Number 03233591
Status Pending
Filing Date 2022-09-28
Open to Public Date 2023-04-13
Owner CATERPILLAR INC. (USA)
Inventor Lane, Cameron Thomas

Abstract

Operating a machine (8) includes supplying electric power from a fuel cell (23) to a power bus (28) connected to an electric motor (30) and an energy storage device (26) in a machine (8) operated at a work site, and determining an expected efficiency gain condition based on at least one of terrain data of the work site or machine (8) activity data of the machine (8). Operating a machine (8) further includes prognostically limiting a power output of the fuel cell (23) based on the determining an expected efficiency gain condition, and charging the energy storage device (26) during occurrence of the expected efficiency gain condition using at least one of a regenerative energy device (20) or the fuel cell (21). The energy storage device (26) may be discharged during prognostically limiting a power output of the fuel cell (23) so as to share a load demand of the power bus between the fuel cell and the energy storage device (26). Related apparatus and control logic is also disclosed.

IPC Classes  ?

  • B60L 7/10 - Dynamic electric regenerative braking
  • H01M 8/04858 - Electric variables
  • B60L 50/75 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using propulsion power supplied by both fuel cells and batteries
  • B60L 58/40 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for controlling a combination of batteries and fuel cells

34.

PIPELAYER MACHINE WITH FORWARD TOWING WINCH CONFIGURATION

      
Document Number 03176150
Status Pending
Filing Date 2022-09-27
Open to Public Date 2023-04-04
Owner CATERPILLAR INC. (USA)
Inventor
  • Caldwell, Curtis J.
  • Vance, Donald L.
  • Barbier, Benjamin

Abstract

A pipelayer machine may comprise a machine chassis; a towing winch assembly coupled to the machine chassis; an operator cabin supported by the machine chassis; an engine supported by the machine chassis; and a boom coupled to the machine chassis. The pipelayer machine may comprise a front portion and a rear portion. The towing winch assembly may be provided in the front portion of the pipelayer machine. The operator cabin may be provided between the towing winch assembly and the engine.

IPC Classes  ?

  • F16L 1/024 - Laying or reclaiming pipes on land, e.g. above the ground
  • B66C 13/52 - Other constructional features or details - Details of compartments for driving engines or motors or of operator's stands or cabins
  • B66C 23/36 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes specially adapted for use in particular locations or for particular purposes mounted on road or rail vehicles; Manually-movable jib cranes for use in workshops; Floating cranes

35.

PIPELAYER MACHINE WITH REAR ENGINE CONFIGURATION

      
Document Number 03176164
Status Pending
Filing Date 2022-09-27
Open to Public Date 2023-04-04
Owner CATERPILLAR INC. (USA)
Inventor
  • Caldwell, Curtis J.
  • Vance, Donald L.
  • Barbier, Benjamin

Abstract

A pipelayer machine (100) may comprise a machine chassis (120); an operator cabin (130) supported by the machine chassis (120); an engine (140) supported by the machine chassis (120); and a boom (150) coupled to the machine chassis (120). The operator cabin (130) may include a seat assembly (135). The operator cabin (130) may be stationary with respect to the machine chassis (120). The pipelayer machine (100) may comprise a front portion and a rear portion. The engine (140) may be provided in the rear portion. The boom (150) may be provided forward with respect to the seat assembly (135).

IPC Classes  ?

  • F16L 1/024 - Laying or reclaiming pipes on land, e.g. above the ground
  • B66C 13/52 - Other constructional features or details - Details of compartments for driving engines or motors or of operator's stands or cabins
  • B66C 23/36 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes specially adapted for use in particular locations or for particular purposes mounted on road or rail vehicles; Manually-movable jib cranes for use in workshops; Floating cranes

36.

PIPELAYER MACHINE WITH FORWARD TOWING WINCH CONFIGURATION

      
Document Number 03176156
Status Pending
Filing Date 2022-09-27
Open to Public Date 2023-04-04
Owner CATERPILLAR INC. (USA)
Inventor
  • Caldwell, Curtis J.
  • Vance, Donald L.
  • Barbier, Benjamin

Abstract

A pipelayer machine may comprise a machine chassis; a towing winch assembly coupled to the machine chassis; an operator cabin supported by the machine chassis; an engine supported by the machine chassis; and a boom coupled to the machine chassis. The pipelayer machine may comprise a front portion and a rear portion. The towing winch assembly may be provided in the front portion of the pipelayer machine. The operator cabin may be provided between the towing winch assembly and the engine.

IPC Classes  ?

  • F16L 1/024 - Laying or reclaiming pipes on land, e.g. above the ground
  • B66C 13/52 - Other constructional features or details - Details of compartments for driving engines or motors or of operator's stands or cabins
  • B66C 23/36 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes specially adapted for use in particular locations or for particular purposes mounted on road or rail vehicles; Manually-movable jib cranes for use in workshops; Floating cranes

37.

CAVITATION DETECTION SYSTEM

      
Document Number 03174793
Status Pending
Filing Date 2022-09-16
Open to Public Date 2023-03-29
Owner CATERPILLAR, INC. (USA)
Inventor
  • Pauli, Nathan S.
  • Ma, Pengfei
  • Patel, Kalpeshkumar N.
  • Carpenter, Richard A.
  • Siegle, James D.
  • Jayakumar, Vignesh
  • Cushing, Richard S.

Abstract

Cavitation that occurs within a pump (102) of a machine (100), such as truck or other work machine, can potentially damage the pump (102) and/or other components of the machine (100). The machine (100) can have a cavitation monitor (104) configured to detect cavitation and/or cavitation damage associated with the pump (102) based on vibration data (106), speed data (108) associated with mechanical movements of the pump, and operation data (110) associated with the machine (100) overall. If the cavitation monitor (104) detects cavitation and/or cavitation damage, the cavitation monitor (104) can cause corresponding alerts to be displayed to a machine operator or other user.

38.

WINCH SPEED COMPENSATION SYSTEMS AND METHODS

      
Document Number 03174705
Status Pending
Filing Date 2022-09-16
Open to Public Date 2023-03-27
Owner CATERPILLAR INC. (USA)
Inventor
  • Caldwell, Curtis J.
  • Barbier, Benjamin

Abstract

A system (40) for controlling a winch assembly (14) includes a rotatable winch drum (47) with an attached cable (23). A winch motor (42) is configured to rotate the winch drum. A sensor (57) is configured to generate signals indicative of the number of layers of the winch cable on the winch drum. A winch controller (51) is configured to receive a control input requesting a selected rotation of the winch drum, receive the signals from the sensor, determine a number of layers of the winch cable disposed on the winch drum, and generate control commands (71) to control the winch motor to rotate the winch drum based on the control input and the number of layers of the winch cable. The control command rotates the winch drum to produce a substantially constant line speed based on the selected control input independent of the number of layers determined to be disposed on the winch drum.

IPC Classes  ?

  • B66D 1/48 - Control devices automatic
  • B66C 23/36 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes specially adapted for use in particular locations or for particular purposes mounted on road or rail vehicles; Manually-movable jib cranes for use in workshops; Floating cranes
  • F16L 1/024 - Laying or reclaiming pipes on land, e.g. above the ground

39.

SUSPENSION SYSTEM WITH INDIVIDUAL RIDE HEIGHT AND DAMPENING CONTROL

      
Document Number 03231630
Status Pending
Filing Date 2022-08-31
Open to Public Date 2023-03-23
Owner CATERPILLAR INC. (USA)
Inventor
  • Johnson, Steven E.
  • Mate, Edward W.
  • Patel, Kalpeshkumar N.

Abstract

A machine (100) includes a first cylinder (122(1)) coupled to a first wheel (106) and a second cylinder (122(2)) coupled to a second wheel (106). A first proportional dampening valve (118(1), 318(1)) fluidly connects to the first cylinder (122(1)) and a second proportional dampening valve (118(2), 318(2)) fluidly connects to the second cylinder (122(2)). First accumulator (120(1))s are fluidly connected to the first cylinder (122(1)) and the first proportional dampening valve (118(1), 318(1)), and second accumulator (120(2))(s) are fluidly connected to the second cylinder (122(2)) and the second proportional dampening valve (118(2), 318(2)). Additionally, a first proportional flow control valve (116(1), 302(1)) fluidly connects to the first cylinder (122(1)) and a second proportional flow control valve (116(2), 302(2)) fluidly connected to the second cylinder (122(2)). An electronic control module (ECM) (124) communicatively couples to the first proportional flow control valve (116(1), 302(1)) and the second proportional flow control valve (116(2), 302(2)) to adjust a ride height of the first wheel (106) via the first cylinder (122(1)) and a ride height of the second wheel (106) via the second cylinder (122(2)).

IPC Classes  ?

  • B60G 17/08 - Characteristics of fluid dampers
  • B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or s the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
  • B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or s the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
  • B60G 17/017 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or s the regulating means comprising electric or electronic elements characterised by their use when the vehicle is stationary, e.g. during loading, engine start-up or switch-off

40.

SYSTEMS AND METHODS FOR SUGGESTING DROP-BOX LOCATIONS

      
Document Number 03230963
Status Pending
Filing Date 2022-08-30
Open to Public Date 2023-03-16
Owner CATERPILLAR INC. (USA)
Inventor Sardenberg, Lucas I.

Abstract

Systems (220, 400, 500, 600) and methods (300) for suggesting drop-box (120) locations include collecting data (305) from one or more sensors (210) or databases (220, 515, 525), determining equipment location trends and asset usage trends (310) in a geographic area based on the data, determining a customer opportunity score (315) for one or more pieces of equipment in a geographic area, and, using an algorithm with a plurality of factors, combining the equipment location trends and asset usage trends with the customer opportunity score (320) to output a geographic location for a drop-box. In some embodiments, the plurality of factors can include at least one or more customer distances from the geographic location.

IPC Classes  ?

  • G06Q 30/02 - Marketing; Price estimation or determination; Fundraising

41.

SYSTEMS AND METHODS FOR INSPECTING MULTI-MODE ASSET STATUS IN COMMUNICATION-DENIED ENVIRONMENTS

      
Document Number 03230707
Status Pending
Filing Date 2022-08-25
Open to Public Date 2023-03-09
Owner CATERPILLAR INC. (USA)
Inventor
  • Belkin, Anatoly
  • Sheynman, Arnold

Abstract

The present technology is generally directed to systems (300) and methods (400) for inspecting an asset (152) in a communication-denied environment (150). The present technology can include receiving (402), via an electronic device (204), an image (304) of a dashboard (202) of the asset; determining (404), based on the image, a working mode (205) and one or more status identifiers of the asset; transmitting (406) the working mode and the one or more status identifiers to an inspection system (110); and/or receiving (408) information regarding the status of the asset based on the working mode and one or more status identifiers.

IPC Classes  ?

42.

SYSTEMS AND METHODS FOR MINIMIZING CUSTOMER AND JOBSITE DOWNTIME DUE TO UNEXPECTED MACHINE REPAIRS

      
Document Number 03230441
Status Pending
Filing Date 2022-08-22
Open to Public Date 2023-03-09
Owner CATERPILLAR INC. (USA)
Inventor Sardenberg, Lucas I.

Abstract

Techniques are provided that may include receiving sensor data from one or more machine sensors, the sensor data indicating machine failure (212). Informational data about current repair technician backlog, shop availability backlog, and parts availability (216) are retrieved and inputted to a machine learning model for computing an estimated time to when the failed machine will be repaired (220). Customer data and dealer site data are retrieved (220) and an estimated financial impact from a potential loaner machine is computed (222). The various computed and retrieved data are inputted to a decision tree algorithm, which computes an optimal solution for maintaining customer productivity (204, 222). The network-accessible dealer site is notified of the optimal solution, which is intended for the customer (206, 222).

IPC Classes  ?

  • G06Q 10/00 - Administration; Management
  • G06Q 10/06 - Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
  • G06Q 10/10 - Office automation; Time management

43.

SYSTEMS AND METHODS FOR OPTIMAL REPLACEMENT COMPONENT PRICING

      
Document Number 03229679
Status Pending
Filing Date 2022-07-28
Open to Public Date 2023-03-02
Owner CATERPILLAR INC. (USA)
Inventor Sardenberg, Lucas Inoue

Abstract

The present technology is generally directed to systems (500, 600, 700) and methods (200, 300, 350, 400) for determining a customer-specific price for a component (120), such as a replacement component (120b), of a machine (110). The present technology can include collecting (202, 302a, 302b, 402), for one or more customers (102), data (254) associated with the replacement component. For each of the customer(s), the present technology can further include determining (204, 304a, 304b, 402) one or more customer-specific factors; using the customer-specific factors(s) to determine (206, 306a, 306b, 406) one or more optimization metric(s); applying (208, 308a, 308b, 408) an optimization engine to the optimization metric(s) to determine a customer-specific adjustment; and inputting (210, 310, 410) the customer-specific adjustment into a pricing system to generate a future price for the replacement component.

IPC Classes  ?

  • G06Q 30/02 - Marketing; Price estimation or determination; Fundraising
  • G06Q 30/06 - Buying, selling or leasing transactions

44.

PUMP CONFIGURATION INCLUDING A PURGE VALVE

      
Document Number 03228704
Status Pending
Filing Date 2022-07-26
Open to Public Date 2023-02-23
Owner CATERPILLAR INC. (USA)
Inventor
  • Mork, David A.
  • English, Paul R.
  • Mickiewicz, Matthew

Abstract

A pump and purge valve (104,204) configuration may include an inlet (244A/B), an outlet (246A/B) arranged downstream of the inlet and defining a portion of an operational fluid pathway, and a pump mechanism (248A/B) arranged along the operational fluid pathway between the inlet and the outlet. The pump and purge valve configuration may also include a purging fluid pathway (116/216) having a purge inlet (120/220) in fluid communication with the operational fluid pathway at a point downstream of the pump. The purging fluid pathway may extend from the purge inlet to a relief point. The pump and purge valve configuration may also include a purge valve arranged along the purging fluid pathway. The purge valve may be configured to remain open unless a triggering fluid pressure develops in the pump mechanism.

IPC Classes  ?

  • F04B 11/00 - Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
  • F04B 49/08 - Regulating by delivery pressure

45.

SYSTEMS AND METHODS FOR CONSTRAINED OPTIMIZATION OF A HYBRID POWER SYSTEM THAT ACCOUNTS FOR ASSET MAINTENANCE AND DEGRADATION

      
Document Number 03170430
Status Pending
Filing Date 2022-08-15
Open to Public Date 2023-02-19
Owner CATERPILLAR, INC. (USA)
Inventor
  • Reddy, Suresh Baddam
  • Prathapaneni, Dimple Raja

Abstract

Systems and methods for operating a hybrid power system are disclosed. A controller may perform operations, including: obtaining load data for the hybrid power system; obtaining power availability data and energy cost data for each power asset in each power asset group of a plurality of power asset groups; and determining active power commands for each power asset by performing at least one optimization, such that the determined active power commands optimize a total operating cost, wherein: the at least one optimization is based on at least one cost function that accounts for asset degradation, asset maintenance cost, asset operation efficiency cost, and the energy cost data; and the at least one optimization is constrained by a plurality of constraints based on the load data, the power availability data, and characteristics of the power assets; and operating each power asset based on the determined active power commands.

IPC Classes  ?

  • H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
  • H02S 10/00 - PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
  • H02J 4/00 - Circuit arrangements for mains or distribution networks not specified as ac or dc
  • H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
  • H02J 15/00 - Systems for storing electric energy

46.

SYSTEMS AND METHODS FOR OPERATING A HYBRID POWER SYSTEM BY COMBINING PROSPECTIVE AND REAL-TIME OPTIMIZATIONS

      
Document Number 03170405
Status Pending
Filing Date 2022-08-15
Open to Public Date 2023-02-19
Owner CATERPILLAR, INC. (USA)
Inventor
  • Reddy, Suresh Baddam
  • Prathapaneni, Dimple Raja

Abstract

Systems and methods for operating a hybrid power system are disclosed. A controller may perform operations, including: obtaining a load forecast; obtaining a power availability forecast and an energy cost forecast for each power asset group; performing at least one prospective optimization to determine scheduled active power commands for the groups that optimize a total operating cost; tracking an on-line load; tracking an on-line power availability and an on-line energy cost for the groups; performing at least one on-line optimization to determine on-line active power commands for the groups that (i) account for variance between the load forecast and the on-line load, (ii) account for variance between the power availability forecast and the on-line power availability, and (iii) optimize the total operating cost; and operating the groups based on the scheduled active power commands and the on-line active power commands.

IPC Classes  ?

  • H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
  • H02J 4/00 - Circuit arrangements for mains or distribution networks not specified as ac or dc
  • H02S 10/00 - PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
  • H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
  • H02J 15/00 - Systems for storing electric energy

47.

WORK MACHINE GROUND ENGAGING TOOL WEAR AND LOSS DETECTION SYSTEM AND METHOD

      
Document Number 03228396
Status Pending
Filing Date 2022-07-26
Open to Public Date 2023-02-16
Owner CATERPILLAR INC. (USA)
Inventor
  • Mianzo, Lawrence A.
  • Oblak, Tod A.
  • Plouzek, John M.
  • Wise, Raymond A.
  • Mathew, Shawn N.
  • Adler, Daniel P.

Abstract

An example wear detection system (110) receives a plurality of images from a plurality of sensors (126, 128) associated with a work machine (100). Individual sensors of the plurality of sensors have respective fields-of-view (127, 129) different from other sensors of the plurality of sensors. The wear detection system identifies a first region of interest(550) and second region of interest (550) associated with the at least one GET. The wear detection system determines a first set of image points (920) and a second set of images points (920) for the at least one GET based on geometric parameters (535) associated with the GET. The wear detection system determines a wear level or loss for the at least one GET based on the GET measurement.

IPC Classes  ?

  • E02F 9/28 - Small metalwork for digging elements, e.g. teeth
  • G01S 17/894 - 3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar
  • G06T 15/00 - 3D [Three Dimensional] image rendering

48.

SYSTEM AND COMPUTER-IMPLEMENTED METHOD FOR DETERMINING WEAR LEVELS OF A GROUND ENGAGING TOOL OF A WORK MACHINE INDICATIVE OF A TOOL REPLACEMENT CONDITION

      
Document Number 03228401
Status Pending
Filing Date 2022-07-22
Open to Public Date 2023-02-16
Owner CATERPILLAR INC. (USA)
Inventor
  • Mianzo, Lawrence A.
  • Oblak, Tod A.
  • Mathew, Shawn Nainan
  • Plouzek, John M.
  • Wise, Raymond Alan
  • Adler, Daniel Paul

Abstract

An example wear detection system (110) receives first image data related to at least one ground engaging tool (GET) of a work machine (100) from one or more sensors at a first time instance in a dig-dump cycle of the work machine. The wear detection system processes the first image data to determine a first wear measurement and first wear level for the at least one GET. The wear detection system determines whether the first wear level is indicative of a GET replacement condition. The wear detection system generates an alert when the first wear level is indicative of the GET replacement condition. The wear detection system receives second image data related to the at least one GET a second time instance different from the first time instance when the first wear level is not indicative of the GET replacement condition and determines a second wear measurement and second wear level for the at least one GET. The wear detection system generates an alert indicative of the first wear level and the second wear level based on determining that the first wear level and the second wear level are indicative of the GET replacement condition.

IPC Classes  ?

49.

AXIAL PISTON PUMP MOUNTING FLANGE CONFIGURATION

      
Document Number 03226687
Status Pending
Filing Date 2022-07-26
Open to Public Date 2023-02-09
Owner CATERPILLAR INC. (USA)
Inventor
  • Mickiewicz, Matthew G.
  • Ramalho, Stive
  • Hopf, Darren Joseph
  • Speichinger, Justin Douglas
  • Rousseau, Paul Alan
  • Mallein, Brice

Abstract

A hydraulic pump or motor (48, 100) includes a mounting flange (78) that is disposed at the first end of the housing (102). The mounting flange (78) defines a pair of fastener receiving apertures (80, 92) that are disposed along the X-axis on either side of the shaft (104). The pair of fastener receiving apertures (80) each define a radius center (82) that are spaced away from each other a X dimension (84), and a pilot projection (86) extends longitudinally away from the mounting flange (78), defining a pilot projection diameter (88). A ratio of the X dimension (84) to the pilot projection diameter (88) ranges from 1.07 to 1.11.

IPC Classes  ?

  • F04B 53/16 - Casings; Cylinders; Cylinder liners or heads; Fluid connections

50.

ROBOTIC WELDING SYSTEM WITH ORBITAL WELDER POSITIONED ON ROBOTIC ARM

      
Document Number 03226681
Status Pending
Filing Date 2022-07-26
Open to Public Date 2023-02-09
Owner CATERPILLAR INC. (USA)
Inventor
  • Adcock, Leon
  • Brewer, Michael Alan
  • Noble, Michael H.
  • Joustra, Kevin

Abstract

A robotic welder (120) includes one or more motors (208), one or more articulating arms (200) connected to the one or more motors (208), one or more sensors (218) configured to image a wear plate (114) for determining welding locations (300) for welding the wear plate (114) to a blade (112) of a machine (100), and an orbital welder (204) to rotate a torch head (202) for welding the wear plate (114) to the blade (112).

IPC Classes  ?

  • B23K 9/00 - Arc welding or cutting
  • B23K 9/028 - Seam welding; Backing means; Inserts for curved planar seams
  • B23K 9/095 - Monitoring or automatic control of welding parameters
  • B23K 37/02 - Carriages for supporting the welding or cutting element
  • E02F 3/815 - Blades; Levelling tools

51.

SPOOLS FOR SPOOL VALVE ASSEMBLIES AND METHODS OF FABRICATING SPOOLS

      
Document Number 03227270
Status Pending
Filing Date 2022-07-26
Open to Public Date 2023-02-09
Owner CATERPILLAR INC. (USA)
Inventor
  • Martin, Kevin L.
  • Zwart, Paul A.
  • Marstall, Michael C.
  • Sorokin, Mikhail A.

Abstract

A spool (120) for a spool valve assembly (100) defines a spool longitudinal axis (122) and includes a first land module (130) defining a first land module circumferential surface (132), a second land module (140) defining a second land module circumferential surface (142), and a first metering module (150). The first metering module (150) has a first end cap (152) and a second end cap (154). The first end cap (152) is coupled to the first land module (130), and the second end cap (154) is coupled to the second land module (140), to form the spool (120). The first metering module (150) may further include at least two pillars (184) extending from the first end cap (152) to the second end cap (154), wherein the at least two pillars (184) are entirely disposed within a virtual first metering module hollow cylinder area (182) that surrounds a virtual first metering module central core area (180) concentric with the spool longitudinal axis (122).

IPC Classes  ?

  • F16K 11/07 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
  • F15B 13/04 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor

52.

DUAL FUEL TANK SYSTEM WITH INTERNALLY MOUNTED FUEL TANKS IN LINE WITH ACTUATORS

      
Document Number 03225348
Status Pending
Filing Date 2022-07-01
Open to Public Date 2023-02-02
Owner CATERPILLAR INC. (USA)
Inventor
  • Rillie, Jr. Hugh
  • Thompson, Sean W.
  • Mahoney, Jason A.

Abstract

A machine (100) includes an engine compartment (116), an engine located within the engine compartment (116), a first compartment (500) located on a first side (114(1)) of the machine (100), external to the engine compartment (116), and accessible via the engine compartment (116), as well as a second compartment (700) located on a second side (114(2)) of the machine (100), external to the engine compartment (116), and accessible via the engine compartment (116). A first actuator (200(1))is disposed on the first side (114(1)) of the machine (100) and couples to a first linkage member (108(1)) that supports a work implement. A second actuator (200(2))is disposed on the second side (114(2)) of the machine (100) and couples to a second linkage member (108(2)) that supports the work implement. A first fuel tank (126(1)) is located in the first compartment (500), coplanar with the first actuator (200(1)). A second fuel tank (126(2)) is located in the second compartment (700), coplanar with the second actuator (200(2)).

IPC Classes  ?

53.

TRACK LINK HAVING SENSOR-RECEIVING CAVITIES

      
Document Number 03226070
Status Pending
Filing Date 2022-07-20
Open to Public Date 2023-02-02
Owner
  • CATERPILLAR INC. (USA)
  • ASIATRAK (TIANJIN) LTD. (China)
Inventor
  • Kalmes, Donald J.
  • Shoemaker, William P.
  • Zhou, Yaodong
  • Zhang, Li

Abstract

A track link (22) having sensor-receiving cavities (62) and a method (400) of producing a track link (22) is disclosed. The track link (22) may include a link body (50) and a cavity (62) formed in the link body (50) configured to receive a sensing device (32). The track link (22) may also include a protrusion (76) substantially surrounding the cavity (62). The protrusion (76) may include a substantially flat surface (78).

IPC Classes  ?

  • B62D 55/21 - Links connected by transverse pivot pins

54.

REPLACEABLE WEAR PLATE

      
Document Number 03226104
Status Pending
Filing Date 2022-07-22
Open to Public Date 2023-02-02
Owner CATERPILLAR INC. (USA)
Inventor
  • Serrurier, Douglas C.
  • Young, Andrew W.
  • Hartoonian-Parizek, Graham R.

Abstract

A wear member (500, 500a) includes a body defining an exterior (508, 508a) with an outside perimeter (510, 510a), an interior aperture (502) with an at least partially interior polygonal perimeter (504), and at least one fastener receiving hole (512, 512a) extending from the exterior (508, 508a) to the interior aperture (502). The exterior (508, 508a) lacks any large openings to limit the risk of material packing.

IPC Classes  ?

  • E02F 9/28 - Small metalwork for digging elements, e.g. teeth

55.

BEARING MATERIALS FOR TRICONE BIT ROLLING ELEMENTS

      
Document Number 03226117
Status Pending
Filing Date 2022-07-20
Open to Public Date 2023-02-02
Owner CATERPILLAR INC. (USA)
Inventor
  • Suresh, Swetha
  • Yerby, Gary C.
  • Dahiwal, Chetan V.
  • Yaniak, Thomas J.
  • Pershing, Michael A.
  • Blindt, Todd M.
  • Johnston, Scott A.
  • Nusz, Timothy F.
  • Appavu, Akilan
  • Bargfrede, Benjamin J.

Abstract

Roller cone drill bits (100) and methods of increasing the wear resistance of a roller cone drill bit are disclosed. The roller cone drill bit (100) includes a plurality of rolling elements (400A, 400B) within a bearing assembly (202, 204, 206) of a cone (110). Each rolling element of the plurality of rolling elements (400A, 400B) may have a surface hardness of HRC 59-63, a hardened depth that is 0.5 mm to 3.0 mm deep, and may be derived from a low carbon bearing steel material. The hardened depth is measured from the surface of each rolling element (400A, 400B) and the low carbon bearing steel material has, by weight percent, from 0.12% to 0.25% carbon.

IPC Classes  ?

  • F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
  • E21B 10/22 - Roller bits - characterised by bearing, lubrication or sealing details
  • F16C 19/26 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
  • F16C 19/54 - Systems consisting of a plurality of bearings with rolling friction

56.

SYSTEMS AND METHODS FOR DETERMINING EXTENDED WARRANTY PRICING BASED ON MACHINE ACTIVITY

      
Document Number 03226665
Status Pending
Filing Date 2022-07-06
Open to Public Date 2023-02-02
Owner CATERPILLAR INC. (USA)
Inventor
  • Rai, Prashant
  • Cline, Kyle J.

Abstract

A method (400) for estimating warranty costs for an individual machine (20(1)) can include training (402) a warranty cost model. The method can also include receiving (404) telematics data (102) from a plurality of sensors (22, 24, 26) on an individual machine (20(1)) and determining (406) one or more activity types for the individual machine (20(1)) based on the associated telematics data (102). A mean activity time can be calculated (408) for each activity type. The mean activity time for each activity type can be fed (410) into the trained warranty cost model to provide (412) a predicted warranty cost for the individual machine and a corresponding probability of the predicted warranty cost from the trained warranty cost model.

IPC Classes  ?

57.

SYSTEMS AND METHODS FOR IDENTIFYING MACHINE MODIFICATIONS FOR IMPROVED PRODUCTIVITY

      
Document Number 03226669
Status Pending
Filing Date 2022-07-06
Open to Public Date 2023-02-02
Owner CATERPILLAR INC. (USA)
Inventor
  • Villero, David A.
  • Cline, Kyle J.

Abstract

A method (300) for identifying machine modifications to improve machine productivity can include receiving (302) telematics data (102) from a plurality of sensors (22, 24, 26) on a machine (20(1)) performing an activity. An activity type can be determined (304) based on the telematics data (102). The method (300) can also include calculating (306) a current estimated machine productivity for the activity type and calculating (308) a predicted machine productivity for the activity type for each of a plurality of machine modifications (104). The predicted machine productivity for each of the plurality of machine modifications can be compared (310) with the current estimated productivity. The method can include calculating (312) an investment metric for each of the machine modifications having a predicted machine productivity greater than the current estimated productivity. Each investment metric and its corresponding machine modification can be output (314) for review by a user.

IPC Classes  ?

  • G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
  • G06Q 50/02 - Agriculture; Fishing; Mining
  • G06Q 50/08 - Construction

58.

HOIST SYSTEM COUNTERBALANCE VALVE SIGNAL SHUTOFF

      
Document Number 03225029
Status Pending
Filing Date 2022-07-15
Open to Public Date 2023-01-26
Owner CATERPILLAR INC. (USA)
Inventor
  • Connolly, John R.
  • Junaidi, Aleem
  • Wen, Jun

Abstract

A hoist valve assembly for a work machine cylinder includes a main control valve, a counterbalance valve and a counterbalance shutoff valve. A main control valve raise position connects a head end of the cylinder with a pressurized fluid source and a rod end of the cylinder to a low pressure reservoir to extend the cylinder. The counterbalance valve is between the rod end and the main control valve, is biased to a closed position and has an open position connecting the rod end to the low pressure reservoir. Rod end and head end pressure signals apply force to the counterbalance valve toward the open position. The counterbalance shutoff valve is positioned between the head end and the counterbalance valve, and has a normal position to apply the head end pressure signal to the counterbalance valve and a shutoff position that blocks the head end pressure signal from the counterbalance valve.

IPC Classes  ?

  • B60P 1/16 - Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load supporting or containing element actuated by fluid-operated mechanisms
  • F15B 11/044 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed by means in the return line
  • F15B 21/08 - Servomotor systems incorporating electrically- operated control means

59.

FAULT DETECTION FOR SECONDARY STEERING SYSTEM

      
Document Number 03224819
Status Pending
Filing Date 2022-07-13
Open to Public Date 2023-01-19
Owner CATERPILLAR INC. (USA)
Inventor
  • Mate, Edward W.
  • O'Neill, William N.
  • Peterson, Jeremy T.
  • Carpenter, Richard A.

Abstract

A secondary steering pump system (100) includes a secondary steering pump (108), a bypass valve (110) having a first bypass position (126) configured for placing the secondary steering pump (108) in fluid communication with a hydraulic tank (104) and a second use/testing position (128) configured for placing the secondary steering pump (108) in fluid communication with a steering control circuit (106). The system also includes a solenoid valve (112) configured for actuation by a solenoid (146) and for selectively actuating the bypass valve (110) from the first position (126) to the second position (128). The system (100) also includes a pressure sensor (114) configured for sensing pressure in the system (100).

IPC Classes  ?

  • B62D 5/30 - Safety devices, e.g. alternate emergency power supply or transmission means to ensure steering upon failure of the primary steering means

60.

SYSTEMS AND METHODS FOR IMPROVING MACHINE PERFORMANCE BASED ON MACHINE APPLICATION IDENTIFICATION

      
Document Number 03224697
Status Pending
Filing Date 2022-07-12
Open to Public Date 2023-01-19
Owner CATERPILLAR INC. (USA)
Inventor Sardenberg, Lucas I.

Abstract

A method (400) for improving machine performance based on machine application identification can include training (402) an application identification model (300). The method can also include receiving (404) one or more images (106) from a camera (28) positioned on a machine (20(1)) performing an application, and feeding (406) each of the one or more images (106) into the trained application identification model (300). The trained application identification model (300) provides a predicted application corresponding to the application being performed by the machine (20(1)). The model (300) also provides a probability that the predicted application corresponds to the application being performed by the machine (20(1)). Application optimization parameters (108), based on the predicted application, are retrieved (412) and distributed (414) to the machine (20(1)) when the probability is greater than a selected confidence threshold (410).

IPC Classes  ?

  • G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
  • G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle

61.

DIPPER LIP

      
Document Number 03222879
Status Pending
Filing Date 2022-06-01
Open to Public Date 2023-01-05
Owner CATERPILLAR INC. (USA)
Inventor
  • Kunz, Phillip J.
  • Jamilosa, James G.

Abstract

A dipper lip (300) includes a first side wing (310), a second side wing (310a), a rear bucket attachment portion (306) that spans from the first side wing (310) and the second side wing (310a), and a front shovel portion (302) that extends from the first side wing (310) to the second side wing (310a). The front shovel portion (302) defines a top shovel surface (314), while the rear bucket attachment portion (306) forms a top rear surface (316). The top shovel surface (314) forms an obtuse angle (318) with the top rear surface (316) in a midplane (312) of the dipper lip (300).

IPC Classes  ?

  • E02F 9/28 - Small metalwork for digging elements, e.g. teeth

62.

FATIGUE LIFE OPTIMIZED MODULAR BUCKET ASSEMBLY

      
Document Number 03222323
Status Pending
Filing Date 2022-06-08
Open to Public Date 2022-12-29
Owner CATERPILLAR INC. (USA)
Inventor
  • Kanniappan, Gopalakrishnan
  • Worth, David
  • Fayville, Nicholas John
  • Larimore, Derek D.

Abstract

A fatigue life optimized modular bucket assembly (1) for a work machine (3) and a method of manufacturing thereof are disclosed. The bucket assembly (1) includes a bucket core (100) having a pair of side sections (110), a continuous wrapper (120), a supporting element (130), and a receptacle (199); and an extension module (200) having a pair of side bars (210), a guard module (220), an edge module (230), and, optionally, a set of extension plates (240, 250, 260). The method includes prebuilding the bucket core (1310), receiving an order (1320), manufacturing the extension module (1330), and assembling the bucket core and the extension module (1340). Advantageously, the bucket assembly (1) may include both universal and customizable components without exhibiting a reduction to fatigue life commonly associated with weld seams.

IPC Classes  ?

  • E02F 3/40 - Dippers; Buckets
  • E02F 9/28 - Small metalwork for digging elements, e.g. teeth

63.

RETAINER SLEEVE WITH AN ANTI-ROTATION FEATURE

      
Document Number 03222289
Status Pending
Filing Date 2022-06-01
Open to Public Date 2022-12-22
Owner CATERPILLAR INC. (USA)
Inventor
  • Wells, Corey
  • Serrurier, Douglas C.
  • Jura, Jason

Abstract

In some implementations, a retainer sleeve may include a body including an at least partially annular configuration defining a retainer axis. The body may include an inner surface configured to rotatably receive an outer surface of a lock. The body may include a plurality of plates circumferentially joined together with respect to the retainer axis, where a first plate of the plurality of plates includes a first leg joined to the first plate extending away from the retainer axis and configured to contact a lock cavity of the lock. The body may include an anti-rotation feature, disposed on the first plate, extending inward from the inner surface toward the retainer axis, the anti-rotation feature including a locking surface configured to contact a lock skirt of the lock, the locking surface disposed at a first angle with respect to a bottom end of the first plate.

IPC Classes  ?

  • E02F 9/28 - Small metalwork for digging elements, e.g. teeth
  • F16B 21/02 - Releasable fastening devices locking by rotation

64.

FLUID FLUSHING SYSTEM FOR A HYDRAULIC CIRCUIT OF A WORK MACHINE

      
Document Number 03160823
Status Pending
Filing Date 2022-05-27
Open to Public Date 2022-12-11
Owner CATERPILLAR INC. (USA)
Inventor
  • P, Anand S.
  • U, Elangovan
  • R, Prasana

Abstract

A system for controlling an operation of a hydrostatic circuit of a work machine includes a flush control valve. The flush control valve is configured to be fluidly coupled to the hydrostatic circuit. The hydrostatic circuit is configured to operate in at least two operating modes to supply fluid power to selectively run a plurality of sub-systems of the work machine. In at least one operating mode of the at least two operating modes of the hydrostatic circuit, the flush control valve is configured to move and regulate a flushing flow rate of the fluid to equalize the flushing flow rate with a desired flushing flow rate based on a signal indicative of the at least one operating mode.

IPC Classes  ?

  • F15B 21/00 - Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
  • F16H 61/40 - Control of exclusively fluid gearing hydrostatic

65.

GROUND ENGAGING TOOL WEAR AND LOSS DETECTION SYSTEM AND METHOD

      
Document Number 03219386
Status Pending
Filing Date 2022-05-16
Open to Public Date 2022-12-08
Owner CATERPILLAR INC. (USA)
Inventor
  • Mianzo, Lawrence A.
  • Oblak, Tod A.
  • Plouzek, John M.
  • Wise, Raymond A.
  • Mathew, Shawn N.

Abstract

An example wear detection system (110) receives first imaging data from one or more sensors (126, 128) associated with a work machine (100). The first imaging data comprises data related to at least one ground engaging tool (GET) (125) of the work machine. The example system identifies a region of interest including data of the at least one GET within the first imaging data. Based on the identified region of interest, the example system controls a LiDAR sensor (126) to capture second imaging data capturing the at least one GET that is of higher resolution than the first imaging data. The example system generates a three-dimensional point cloud of the at least one GET based on the second imaging data and determines a wear level or loss for the at least one GET based on the three-dimensional point cloud.

IPC Classes  ?

  • E02F 9/26 - Indicating devices
  • E02F 9/28 - Small metalwork for digging elements, e.g. teeth

66.

CORNER GUARD FOR A WORK IMPLEMENT ASSEMBLY

      
Document Number 03219492
Status Pending
Filing Date 2022-05-19
Open to Public Date 2022-12-08
Owner CATERPILLAR INC. (USA)
Inventor
  • Bjerke, Nathan R.
  • Tancin, Michael
  • Sinn, Eric T.

Abstract

A corner guard (300, 300a) includes a rear attachment portion (302) defining a first fastener receiving void (304), a rear edge (312) that is disposed along the direction of material flow (310), and a forward ramp portion (314) that extends forwardly from the rear attachment along the direction of material flow (310), and vertically downwardly forming a front wear edge (316). The corner guard (300, 300a) also includes an outer lateral side (318), and an inner lateral side (320). The outer lateral side (318) is flared laterally, defining an outer lateral side extremity (322) that is disposed along the direction of material flow (310) adjacent to the front wear edge (316), and forming a flared portion (324).

IPC Classes  ?

  • E02F 9/28 - Small metalwork for digging elements, e.g. teeth

67.

SYSTEMS AND METHODS FOR MANAGING ON-SITE MACHINES BY SPATIAL AND CONTEXTUAL INFORMATION

      
Document Number 03219327
Status Pending
Filing Date 2022-05-05
Open to Public Date 2022-12-01
Owner CATERPILLAR INC. (USA)
Inventor
  • Lewis, Adam
  • Adcock, Daniel P.
  • Doherty, Thomas F.
  • Harpour, John
  • Brandon, Alison
  • Ball, Alexander
  • Wesley, Carla

Abstract

The present disclosure is directed to systems and methods for managing on-site machines (103a-f). The method includes, for example, (i) receiving geospatial information associated with a work site; (ii) generating a user interface (400) on at least one display; (iii) displaying a first machine of the multiple machines within the first section (401) in a first compressed view (201); (iv) selecting a second machine of the multiple machines; (v) in response to the selection of the second machine of the multiple machines within the second section (405), visually presenting at least one portion of the work site in an elevated view (207); and (vi) visually presenting the second machine of the multiple machines in a second compressed view (209).

IPC Classes  ?

  • G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control (DNC), flexible manufacturing systems (FMS), integrated manufacturing systems (IMS), computer integrated manufacturing (CIM)
  • G06Q 50/10 - Services
  • G05B 23/02 - Electric testing or monitoring

68.

OVERLAPPING CUTTING EDGE TIP SYSTEM

      
Document Number 03219335
Status Pending
Filing Date 2022-05-06
Open to Public Date 2022-12-01
Owner CATERPILLAR INC. (USA)
Inventor
  • Wells, Corey Michael
  • Serrurier, Douglas C.
  • Jura, Jason Grant

Abstract

A cutting edge tip (400) includes an attachment portion (402) defining an adapter receiving void (404). A working portion (411) extends forwardly from the attachment portion (402). A first lateral end portion (414) is disposed along the lateral direction (408), the first lateral end portion (414) defining a first lateral end surface (416) that jogs laterally. Also, a second lateral end portion (418) is disposed along the lateral direction (408) opposite of the first lateral end portion (414). The second lateral end portion (418) also defines a second lateral end surface (420) that jogs laterally.

IPC Classes  ?

  • E02F 9/28 - Small metalwork for digging elements, e.g. teeth

69.

SYSTEMS AND METHODS FOR MANAGING ON-SITE MACHINES BY DYNAMIC OFF-SCREEN INDICATORS

      
Document Number 03218878
Status Pending
Filing Date 2022-05-05
Open to Public Date 2022-11-24
Owner CATERPILLAR INC. (USA)
Inventor
  • Lewis, Adam
  • Adcock, Daniel P.
  • Doherty, Thomas F.
  • Harpour, John
  • Brandon, Alison
  • Ball, Alexander
  • Wesley, Carla

Abstract

The present disclosure is directed to systems and methods for dynamically alerting off-screen machine status information The system includes a user interface (400) on at least one display. The user interface includes, for example, (i) a monitoring section (401) configured to display information corresponding to a first group of the machines; and an off-screen indicator (407) configured to indicate that additional information corresponding to a second group of machines is available. The off-screen indicator is configured to provide a dynamically-changing indicator of information related to the second group of machines. The dynamically-changing indicator can change upon receiving a different prioritized status event corresponding to one or more machines of the second group of machines.

IPC Classes  ?

  • G06F 3/0484 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range

70.

TOP COVER FOR PROTECTING A BASE EDGE

      
Document Number 03219013
Status Pending
Filing Date 2022-05-06
Open to Public Date 2022-11-24
Owner CATERPILLAR INC. (USA)
Inventor
  • Wells, Corey Michael
  • Serrurier, Douglas C.

Abstract

A top cover (300) for protecting a base edge defines a first fastener receiving void (304) that is disposed along the direction of material flow (310) between the forward ramp portion (314) and the rear edge (312). The top male angled surface (318) of the top cover (300) defines a first material flow groove that extends along the direction of material flow (310), and includes a first flow ramp (324). The first material flow groove (322) is disposed adjacent along the lateral direction (308) and the direction of material flow (310) to the first fastener receiving void (304).

IPC Classes  ?

  • E02F 9/28 - Small metalwork for digging elements, e.g. teeth

71.

SYSTEM AND METHOD FOR GENERATING SERVICING SCHEDULE FOR MACHINE

      
Document Number 03217046
Status Pending
Filing Date 2022-04-29
Open to Public Date 2022-11-10
Owner CATERPILLAR INC. (USA)
Inventor
  • Sukumaran, Sriram
  • Selvaraj, Vishnu G.

Abstract

A system (100) for generating a servicing schedule includes a controller (106). The controller (106) receives an input signal pertaining to a servicing information for the machine (102). The servicing information includes one or more of an aftermarket servicing lead, a fault code from the machine (102), a fluid test result for the machine (102), and an inspection data for the machine (102). The controller (106) analyzes the input signal for generating a service report that contains the servicing information. The service report is used for generating the servicing schedule for the machine (102). The system (100) also includes a user interface (110) for receiving the service report from the controller (106). The user interface (110) presents the service report thereon.

IPC Classes  ?

  • G06Q 10/10 - Office automation; Time management
  • G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"

72.

UNDERCARRIAGE TRACK ROLLER HAVING ASYMMETRIC SHELL WITH OIL GROOVES AND ROLLER SHAFT FOR SAME

      
Document Number 03217235
Status Pending
Filing Date 2022-04-28
Open to Public Date 2022-11-10
Owner CATERPILLAR INC. (USA)
Inventor Suanno, Gennaro

Abstract

A track roller (30) for an undercarriage system (14) includes a roller shell (32) with a first inner surface (56) forming a larger diameter shaft bore (58) and a second inner surface (60) forming a smaller diameter shaft bore (62) coaxially arranged with the larger diameter shaft bore (58). A roller shaft (54) having a first shaft end (64) and a second shaft end (66) supports the roller shell (32) for rotation and has an oil reservoir (152) formed therein. A first sleeve bearing (70) and a second sleeve bearing (72) are positioned upon the roller shaft (54), and an axially extending oil passage (78) is formed by the second inner surface (60) of the roller shell (32) forming the smaller diameter shaft bore (62) and an outer bearing surface (76) of the second sleeve bearing (72). The oil reservoir (152) in the roller shaft (54) is confined in its extent to the second shaft end (66) of the roller shaft (54).

IPC Classes  ?

  • B62D 55/15 - Mounting devices, e.g. bushings, axles, bearings, sealings
  • B62D 55/092 - Endless-track units; Parts thereof with lubrication means

73.

AUTOMATIC RETARDING CONTROL SYSTEM

      
Document Number 03216669
Status Pending
Filing Date 2022-04-18
Open to Public Date 2022-11-03
Owner CATERPILLAR INC. (USA)
Inventor
  • Johnson, Steven Edward
  • Adeeb, Adam J.

Abstract

A retarding control assembly for a brake valve may include a bleed line configured for arrangement between a spring chamber of a brake command assembly and a tank line. The bleed line may include a check valve configured to allow fluid flow from the spring chamber to the tank and a check valve bypass configured to allow fluid flow from the tank line to the spring chamber passed the check valve and defining a restricted pathway.

IPC Classes  ?

  • B60T 7/04 - Brake-action initiating means for personal initiation foot-actuated
  • B60T 13/66 - Electrical control in fluid-pressure brake systems
  • B60T 13/68 - Electrical control in fluid-pressure brake systems by electrically-controlled valves

74.

COMBUSTION GAS LEAK DETECTION STRATEGY

      
Document Number 03216724
Status Pending
Filing Date 2022-03-01
Open to Public Date 2022-11-03
Owner CATERPILLAR INC. (USA)
Inventor
  • Huelsmann, Joseph M.
  • Speichinger, Jeffrey J.
  • Kingham, Teddy E.
  • Kelly, Mark A.

Abstract

A work machine (10) with a remote diagnostic system (200) includes a combustion engine (24), a pump (108), a coolant temperature sensor (140) to monitor and transmit a coolant fluid temperature, a pressure sensor (128) coupled to an inlet (124) of the pump (108), and a controller (136). The pressure sensor (128) is configured to monitor and transmit a coolant fluid pressure. The controller (136) is operatively associated with the engine (24), the coolant temperature sensor (140), the pressure sensor (128) and an equipment care advisor module (202). The equipment care advisor module (202) is configured to monitor the coolant fluid temperature during a start-up of the work machine (10), monitor the coolant fluid pressure during the start-up of the work machine (10), calculate an expected coolant fluid pressure based on the monitored coolant fluid temperature and the monitored coolant fluid pressure, and generate a failure code indicating a combustion gas leak when the monitored coolant fluid pressure exceeds the expected coolant fluid pressure.

IPC Classes  ?

  • F01P 11/16 - Indicating devices; Other safety devices concerning coolant temperature
  • F01P 11/18 - Indicating devices; Other safety devices concerning coolant pressure, coolant flow, or liquid-coolant level

75.

SLACK ADJUSTER ASSEMBLY AND BRAKING SYSTEM FOR A VEHICLE

      
Document Number 03215179
Status Pending
Filing Date 2022-03-28
Open to Public Date 2022-10-20
Owner CATERPILLAR INC. (USA)
Inventor
  • Ma, Pengfei
  • Wei, Puning
  • Gust, Aleksander

Abstract

The invention relates to a slack adjuster assembly (110, 310) comprising: a sensing piston assembly (170, 370) including: a housing (172, 372), a piston (176, 376) slidably provided in the housing (172, 372), and a biasing member (175, 375) provided in the housing (172, 372), the biasing member (175, 375) being configured to bias the piston (176, 376) away from an end wall (173, 373) of the housing (172, 372), wherein the piston (176, 376) has an end wall (177, 377) opposite the end wall (173, 373) of the housing (172, 372), the end wall (177, 377) of the piston (176, 376) having at least one orifice (178, 378) that extends from a first side of the end wall (177, 377) of the piston (176, 376) to a second side of the end wall (177, 377) of the piston (176, 376).

IPC Classes  ?

  • F16D 65/74 - Slack adjusters hydraulic self-acting in one direction

76.

DATA MANAGEMENT SYSTEMS AND METHODS

      
Document Number 03215183
Status Pending
Filing Date 2022-04-13
Open to Public Date 2022-10-20
Owner CATERPILLAR INC. (USA)
Inventor
  • Nandagopalan, Venkata S.
  • Hopper, Derek J.
  • Gerald, Franklin
  • Balu, Satheesh K.
  • Chitgopekar, Sucheta
  • Cree, Spencer
  • Page, Wyatt

Abstract

A method includes, with a processor executing computer-readable instructions stored within a memory device, displaying, on a display device and via at least one graphical user interface (GUI), a first interface element associated with a machine selection, receiving, via the first interface element, a first input comprising an indication of a machine, receiving, via the first interface element, a second input comprising an indication to download parts and service information associated with the machine, initiating a download of the parts and service information associated with the machine from a computing device, receiving the downloaded parts and service information associated with the machine, storing the downloaded parts and service information associated with the machine in a mobile computing device associated with the processor, and accessing the downloaded parts and service information associated with the machine using the mobile computing device when no data network connection is available.

IPC Classes  ?

77.

SYSTEMS AND METHODS FOR PROBABILISTIC PARTS FORECASTING BASED ON MACHINE UTILIZATION PATTERNS

      
Document Number 03213710
Status Pending
Filing Date 2022-02-16
Open to Public Date 2022-10-06
Owner CATERPILLAR INC. (USA)
Inventor
  • Rai, Prashant
  • Ramaswamy, Sridhar
  • Cline, Kyle J.
  • Atkinson, Keith

Abstract

A method for forecasting part sales (1100), including collecting sales data (300) for a part over a series of sales time periods (402) and collecting activity data (310) for a plurality of activity types (312, 314, 316) over a series of activity time periods (404) for a plurality of machines (20(1), 20(2)) including the part. A mean activity time (502, 504, 506) can be calculated for each activity type (312, 314, 316) for each time period in the series of activity time periods (404) based on the collected activity data (310). An activity probability density function (604) of the mean activity times (502, 504, 506) for each activity type (312, 314, 316) is created and a machine learning model (702) is trained using an expectation of activity derived from the probability density functions (604) for each activity type (312, 314, 316) and the collected sales data (300). Machine activity data for a set of machines can be fed into the trained model (702) to derive a part sales probability density function for the set of machines (704).

IPC Classes  ?

  • G06Q 10/08 - Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
  • G06Q 30/02 - Marketing; Price estimation or determination; Fundraising

78.

SYSTEMS AND METHODS FOR AUTOMATICALLY SCHEDULING MAINTENANCE

      
Document Number 03213723
Status Pending
Filing Date 2022-03-18
Open to Public Date 2022-10-06
Owner CATERPILLAR INC. (USA)
Inventor Reaume, Daniel J.

Abstract

Systems (300, 400, 500) and methods (200) for scheduling maintenance of equipment (100) include collecting pre-emptive maintenance data (210, 544) associated with a pre-emptive maintenance task associated with a component of equipment, collecting preventive maintenance data (215, 546) associated with a scheduled preventive maintenance task associated with the component or another component, applying a model (220, 548) to predict a failure time value associated with a future failure of the component, analyzing the data and the time value (225, 550) to determine an optimal time to perform a maintenance event, and using that optimal time (230, 552) to schedule the next maintenance event. Determining the optimal time includes minimizing a total cost of the maintenance.

IPC Classes  ?

  • G06Q 10/06 - Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
  • G06Q 10/10 - Office automation; Time management

79.

DEVICES, SYSTEMS AND METHODS FOR AUTOMATICALLY PREDICTING MAINTENANCE EVENTS

      
Document Number 03213725
Status Pending
Filing Date 2022-03-29
Open to Public Date 2022-10-06
Owner CATERPILLAR INC. (USA)
Inventor
  • Erriquez, Alexandre
  • Dubreuil, Arnaud
  • Busen, Travis A.
  • Berning, Stephen
  • Gerbaudo, Davide
  • Pitteloud, Jose
  • Bill, Brandon
  • Gard, Guillaume

Abstract

The present technology is generally directed to maintenance event prediction systems (400) for industrial machines (100). In some embodiments, a maintenance event prediction system (400) configured in accordance with embodiments of the present technology can receive (201, 301) information associated with one or more past maintenance events for a machine, use the received information to identify (202, 303) additional information about the machine, and predict (203, 304) a future maintenance event and/or a time until the future maintenance event based at least partially on the received information and/or the additional information.

IPC Classes  ?

80.

COUNTERWEIGHT SYSTEM FOR LIFTING MACHINES

      
Document Number 03153148
Status Pending
Filing Date 2022-03-22
Open to Public Date 2022-09-30
Owner CATERPILLAR INC. (USA)
Inventor
  • Jackson, Robert A.
  • Barbier, Benjamin
  • Caldwell, Curtis J.
  • Jackson, Michael T.

Abstract

A mobile pipelayer machine includes a machine chassis having a forward end, a rear end, a first side, and a second side, and a boom extending from the first side of the machine chassis. The mobile pipelayer machine also includes a movable counterweight system extending from the second side of the machine chassis, the movable counterweight system being selectively movable to change a center of gravity of the machine in at least one of a forward or a rearward direction.

IPC Classes  ?

  • B66C 23/76 - Counterweights or supports for balancing lifting couples separate from jib and movable to take account of variations of load or of variations of length of jib
  • B66C 23/36 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes specially adapted for use in particular locations or for particular purposes mounted on road or rail vehicles; Manually-movable jib cranes for use in workshops; Floating cranes
  • B66F 11/00 - Lifting devices specially adapted for particular uses not otherwise provided for
  • B66F 19/00 - Hoisting, lifting, hauling, or pushing, not otherwise provided for
  • F16L 1/06 - Accessories therefor, e.g. anchors

81.

HYDRAULIC CYLINDER SNUBBING RETENTION ARRANGEMENT

      
Document Number 03212573
Status Pending
Filing Date 2022-03-21
Open to Public Date 2022-09-29
Owner CATERPILLAR INC. (USA)
Inventor
  • Kulkarni, Prasanna V.
  • Goslovich, Kurt S.
  • Vedaraj, Anand J.

Abstract

A hydraulic cylinder may include a housing having a rod end and a cap end and the cap end may include a snubbing bore. The cylinder may also include a rod having a working end outside the housing and extending through a rod end of the cylinder to a piston end. The cylinder may also include a piston arranged within the housing on the piston end of the rod and configured to articulate within the housing between the rod end and the cap end. The piston may have a longitudinal bore extending into a cap side of the piston and the bore may include a retainer lip. The cylinder may also include a snubber configured for engaging the snubbing bore of the cap end when the piston approaches the cap end of the housing. The snubber may have an annular flange configured for retention by the retainer lip.

IPC Classes  ?

  • F15B 15/14 - Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
  • F15B 15/22 - Other details for accelerating or decelerating the stroke

82.

WEAR PART REMOVAL SYSTEM

      
Document Number 03212932
Status Pending
Filing Date 2022-03-18
Open to Public Date 2022-09-29
Owner CATERPILLAR INC. (USA)
Inventor
  • Wurmnest, Kyle R.
  • Kunz, Phillip J.

Abstract

A wear part removal system includes a first wedge assembly configured to engage with a first joint associated with a wear part; a second wedge assembly configured to engage with a second joint associated with the wear part; a ram component configured to cause the first wedge assembly to engage with the first joint associated with the wear part and to cause the second wedge assembly to engage with the second joint associated with the wear part; and a frame configured to hold the first wedge assembly, the second wedge assembly, and the ram component. A wedge assembly, of the first wedge assembly or the second wedge assembly, includes a wedge component configured to engage with a joint associated with the wear part and a wedge component saddle configured to hold the wedge component.

IPC Classes  ?

  • B25B 27/02 - Hand tools or bench devices, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
  • B25B 27/06 - Hand tools or bench devices, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
  • E02F 9/28 - Small metalwork for digging elements, e.g. teeth

83.

SYSTEMS, METHODS, AND APPARATUSES FOR REAL-TIME CHARACTERIZATION OF ROCK CUTTINGS DURING ROCK DRILL CUTTING

      
Document Number 03212930
Status Pending
Filing Date 2022-03-17
Open to Public Date 2022-09-29
Owner CATERPILLAR INC. (USA)
Inventor
  • Oblak, Tod A.
  • Taylor, Lyle
  • Peterson, James
  • Hendricks, Carl
  • Halterman, John F.
  • Mianzo, Lawrence A.
  • Nadukuru, Narayana G.

Abstract

A system, method, and apparatus for real-time characterization of drilled particles (50) during a drilling operation can be comprised of a light illumination source (260) to output short-wave-infrared (SWIR) light toward the drilled particles (50) as the drilled particles (50) exit a drill hole (100) being drilled by a drilling machine (200); a sensor (270) to sense reflected short-wave-infrared (SWIR) light reflected from the drilled particles (50) exiting the drill hole (100); and processing circuitry (250, 252, 255) operatively coupled to at least the sensor (270). The processing circuitry (250, 252, 255) can be configured to determine a spectrum of the reflected short-wave-infrared light sensed by the sensor (270), and determine particle characterization for a portion of the drilled particles (50) by performing hyperspectral analysis on the determined spectrum and based on predetermined candidate particle characterizations.

IPC Classes  ?

  • E21B 49/00 - Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
  • G01N 21/3563 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
  • G01J 3/28 - Investigating the spectrum
  • G01V 8/10 - Detecting, e.g. by using light barriers

84.

SYSTEMS AND METHODS FOR LUBRICANT DILUTION DETECTION

      
Document Number 03212934
Status Pending
Filing Date 2022-03-23
Open to Public Date 2022-09-29
Owner CATERPILLAR INC. (USA)
Inventor
  • Mcauley, Ben
  • Jewell, Tyler P.
  • Campagna, Michael J.
  • Billing, Andrew W.

Abstract

Systems (100) and methods (300) for lubricant dilution detection are disclosed. A method (300) for detecting lubricant dilution for a lubrication system (14) includes detecting a low idle condition (420). The method (300) includes receiving sensed values indicative of lubricant pressure and lubricant temperature during the low idle condition (420). The method (300) also includes determining a lubricant pressure threshold (415) based on the sensed value indicative of lubricant temperature. The method (300) further includes determining lubricant dilution based on the sensed value indicative of lubricant pressure and the determined lubricant pressure threshold (415) during the low idle condition (420). In accordance with a determination that there is lubricant dilution, the method (300) includes outputting an indication of the lubricant dilution.

IPC Classes  ?

  • F01M 11/10 - Indicating devices; Other safety devices
  • F02D 41/08 - Introducing corrections for particular operating conditions for idling

85.

TRACK SHOE WITH LARGE CAVITIES ON GROUND ENGAGING SURFACES HAVING A PROTRUDING SIDEWALL OR AN OVAL PERIMETER

      
Document Number 03211589
Status Pending
Filing Date 2022-02-28
Open to Public Date 2022-09-22
Owner CATERPILLAR INC. (USA)
Inventor
  • Jones, Benjamin Isaac
  • Dumitru, Mircea

Abstract

A track pad (200) includes a shoe member (210) that has two bottom voids (224, 244) extending upwardly from the ground engaging surface (214) of the shoe member (210), and which form a central support pillar (246) having a serpentine surface (250) laterally on side of the central support pillar (246), and another serpentine surface (252) laterally on the other side of the central support pillar (246). The two bottom voids (224, 244) form oval perimeters (240) at the ground engaging surface (214).

IPC Classes  ?

  • B62D 55/21 - Links connected by transverse pivot pins

86.

ROTATING TRACK GUIDE COMPONENTS WITH WHITE-IRON SEGMENTS

      
Document Number 03211420
Status Pending
Filing Date 2022-02-28
Open to Public Date 2022-09-15
Owner CATERPILLAR INC. (USA)
Inventor
  • Rathod, Chandrasen Rameshlal
  • Johannsen, Eric James
  • Recker, Roger L.

Abstract

A rotating track guide component (100, 200) includes a tubular or annular substrate (120, 204) having a longitudinal length (104, 206) and an outer surface (106, 208). The outer surface (106, 208) includes at least one flat portion or one curved portion (209), and at least one wear member (110, 210). The at least one wear member (110, 210) includes a flat inner surface or curved inner surface (212), and the at least one wear member (110, 210) is fixed to the tubular or annular substrate (120, 204).

IPC Classes  ?

  • B62D 55/12 - Arrangement, location, or adaptation of driving sprockets
  • B62D 55/14 - Arrangement, location, or adaptation of rollers

87.

RECIPROCATING PUMP FLUID CYLINDER SLEEVE ASSEMBLY

      
Document Number 03150561
Status Pending
Filing Date 2022-03-01
Open to Public Date 2022-09-05
Owner CATERPILLAR INC. (USA)
Inventor Barnhouse, James Anthony

Abstract

A reciprocating pump includes a fluid end having a body defining a plunger bore that engages a plunger sleeve with a threaded interface, where the plunger sleeve defines throughbore configured to receive a plunger operatively reciprocating within the plunger bore during operation of the reciprocating pump. A packing assembly including a plurality of stacked annular seals is disposed between the plunger sleeve and the plunger. A packing nut having a threaded profile for engagement with a threaded surface of the plunger bore asserts a load against the packing assembly to ensure a positive engagement with the plunger.

IPC Classes  ?

  • F04B 53/02 - Packing the free space between cylinders and pistons
  • E21B 43/26 - Methods for stimulating production by forming crevices or fractures
  • F04B 23/06 - Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type
  • F04B 53/14 - Pistons, piston-rods or piston-rod connections
  • F04B 53/16 - Casings; Cylinders; Cylinder liners or heads; Fluid connections

88.

SNUBBER SYSTEM FOR RETARDING SWINGING MOVEMENT OF DOORS OF DIPPERS

      
Document Number 03209188
Status Pending
Filing Date 2022-02-22
Open to Public Date 2022-09-01
Owner CATERPILLAR INC. (USA)
Inventor Jamilosa, James G.

Abstract

A snubber system (284) for retarding a swinging movement of a door (184) with respect to a body (180) of the dipper (128). The snubber system (284) includes a braking assembly (288), an arm structure (292), and a link structure (296). The braking assembly (288) is configured to be fixedly mounted to the body (180). The arm structure (292) is configured to execute rotation about a first axis (312), the rotation of the arm structure (292) being dampened by the braking assembly (288). The link structure (296) is rotatably coupled to the arm structure (292) to rotate about a second axis (316), and is movable in correspondence with the swinging movement of the door (184) to exert and transfer a force, F, to the arm structure (292). A direction of the force, F, defines an angle between 80 - 100 degrees with respect to an axis (326) or a plane (328) passing through the first axis (312) and the second axis (316) throughout the swinging movement of the door (184).

IPC Classes  ?

  • E02F 3/407 - Dippers; Buckets with ejecting device

89.

SYSTEM FOR DETECTING FAILURE OF AN ARTICULATED STEERING MECHANISM

      
Document Number 03208734
Status Pending
Filing Date 2022-02-14
Open to Public Date 2022-08-25
Owner CATERPILLAR INC. (USA)
Inventor
  • Krone, John James
  • Sergison, Daniel Peter
  • Mate, Edward William
  • Peterson, Jeremy T.
  • Duffer, Bradly Glen
  • Marquette, Matthew Stephen

Abstract

A machine (100) includes a frame (104) and an oscillating hitch (118). A first cylinder (114) couples to a first side of the oscillating hitch (118) and a first side of the frame (104). A second cylinder (116) couples to a second side of the oscillating hitch (118) and a second side of the frame (104). A first isolating mechanism (402) couples to the first cylinder (114) and rotates in response to a first rotation of the first cylinder (114) relative to the frame (104) or the oscillating hitch (118). A first angle sensor (400) senses a first angular displacement (206) of the first isolating mechanism (402) about a first rotational axis. A second isolating mechanism (406) couples to the second cylinder (116) and rotates in response to a second rotation of the second cylinder (116) relative to the frame (104) or the oscillating hitch (118). A second angle sensor (404) senses a second angular displacement (208) of the second isolating mechanism (406) about a second rotational axis.

IPC Classes  ?

  • B62D 12/00 - Steering specially adapted for vehicles operating in tandem or having pivotally connected frames
  • B62D 15/02 - Steering position indicators
  • B62D 5/12 - Piston and cylinder
  • B62D 5/28 - Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application for pivoted bogies

90.

SYSTEM FOR DETECTING FAILURE OF AN ACKERMANN-TYPE STEERING MECHANISM

      
Document Number 03208737
Status Pending
Filing Date 2022-02-11
Open to Public Date 2022-08-25
Owner CATERPILLAR INC. (USA)
Inventor
  • Krone, John J.
  • Sergison, Daniel P.
  • Mate, Edward W.
  • Peterson, Jeremy T.
  • Duffer, Bradly G.
  • Marquette, Matthew S.

Abstract

A machine (100) includes a frame (104), a first steering arm (120), a second steering arm (122), a first hydraulic actuator (116) coupled to the frame (104) and the first steering arm (120), and a second hydraulic actuator (118) coupled to the frame (104) and the second steering arm (122). A first angle sensor (400) measures a rotational displacement of the first hydraulic actuator (116) relative to the first steering arm (120). A first link (500) couples the first hydraulic actuator (116) and the first sensor (400), and isolates movements other than the first rotational displacement. A second angle sensor (400) measures a second rotational displacement of the second hydraulic actuator (118) relative to the second steering arm (122). A second link (500) couples the second hydraulic actuator (118) and the second sensor (400), and isolates movements other than the second rotational displacement.

IPC Classes  ?

91.

HYDRAULIC PUMP OR MOTOR WITH MOUNTING CONFIGURATION FOR INCREASED TORQUE

      
Document Number 03206444
Status Pending
Filing Date 2022-02-04
Open to Public Date 2022-08-18
Owner CATERPILLAR INC. (USA)
Inventor
  • Speichinger, Justin Douglas
  • Ramalho, Stive
  • Hopf, Darren Joseph
  • Bernard, Aurelien Herve
  • Rousseau, Paul Alan

Abstract

A hydraulic pump (48) or motor (46) includes a mounting flange (78) that is disposed at the first end of the housing (60). The mounting flange (78) defines a pair of bolt receiving slots (80) that are disposed along the X-axis on either side of the shaft (58). The pair of bolt receiving slots (80) each define a radius center (82) that are spaced away from each other a X dimension (84), and a pilot projection (86) extends longitudinally away from the mounting flange (78), defining a pilot projection diameter (88). A ratio of the X dimension (84) to the pilot projection diameter (88) ranges from 1.1 to 1.5.

IPC Classes  ?

  • F04B 1/12 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
  • F04B 53/16 - Casings; Cylinders; Cylinder liners or heads; Fluid connections
  • F04C 2/34 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members

92.

GROUND ENGAGING TOOL WEAR AND LOSS DETECTION SYSTEM AND METHOD

      
Document Number 03206445
Status Pending
Filing Date 2022-01-25
Open to Public Date 2022-08-18
Owner CATERPILLAR INC. (USA)
Inventor
  • Mianzo, Lawrence A.
  • Oblak, Tod A.
  • Plouzek, John M.
  • Mathew, Shawn Nainan
  • Wise, Raymond Alan

Abstract

An example wear detection system (110) receives a left image (510) and a right image (520) of a bucket (120) of a work machine (100) having at least one ground engaging tool (GET) (125). The example system identifies a first region of interest (550) from the left image corresponding to the GET and a second region of interest (560) from the right image corresponding to the GET. The example system also generates a left-edge digital image (740) corresponding to the first region of interest and a right-edge digital image (750) corresponding to the second region of interest. Further, the example system determines a sparse stereo disparity (760) between the left- edge digital image and the right-edge digital image, determines measurement data related to the GET and also determines a wear level or loss for the at least one GET based on the measurement data.

IPC Classes  ?

  • G06V 10/25 - Determination of region of interest [ROI] or a volume of interest [VOI]
  • G06V 10/40 - Extraction of image or video features
  • G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
  • G06V 10/70 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning
  • G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
  • G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
  • G06V 20/64 - Three-dimensional objects

93.

HYDRAULIC PUMP OR MOTOR WITH MOUNTING CONFIGURATION FOR INCREASED TORQUE

      
Document Number 03206446
Status Pending
Filing Date 2022-02-04
Open to Public Date 2022-08-18
Owner CATERPILLAR INC. (USA)
Inventor
  • Speichinger, Justin D.
  • Ramalho, Stive
  • Hopf, Darren J.
  • Bernard, Aurelien H.
  • Rousseau, Paul A.

Abstract

A female mounting member (300) is configured to mate with a hydraulic pump or fan. The member (300) includes a body that defines a projection receiving cavity (87, 302) defining a cavity diameter (D302), and a first threaded hole (304) defining a first threaded hole diameter (D304). A ratio of the cavity diameter (D302) to the first threaded hole diameter (D304) ranges from 8.0 to 8.15.

IPC Classes  ?

  • F04D 29/62 - Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps

94.

RETAINER AND CORRESPONDING WEAR MEMBER

      
Document Number 03206717
Status Pending
Filing Date 2022-01-25
Open to Public Date 2022-08-18
Owner CATERPILLAR INC. (USA)
Inventor
  • Jura, Jason Grant
  • Sinn, Eric T.
  • Serrurier, Douglas C.
  • Wells, Corey Michael

Abstract

A retainer (900) includes a drive portion (902) defining a drive portion outer diameter, and a lug receiving portion with a skirt (904) defining a lug receiving slot (914) that extends partially through the lug receiving portion, forming a first sidewall, a second sidewall, and a catch surface connecting the first sidewall to the second sidewall. The skirt (904) also defines a skirt outer diameter that is greater than the drive portion outer diameter. Also, the drive portion (902) has a hook tab (908) that extends from the drive portion (902) and that is spaced away from the skirt (904) a minimum distance.

IPC Classes  ?

  • E02F 9/28 - Small metalwork for digging elements, e.g. teeth

95.

SHROUDS FOR GROUSER PROTECTORS IN TRACK SHOES AND GROUSER SHROUD INVENTORY

      
Document Number 03206186
Status Pending
Filing Date 2022-01-24
Open to Public Date 2022-08-11
Owner CATERPILLAR INC. (USA)
Inventor
  • Clarke, Donovan S.
  • Prest, Paul

Abstract

A shroud (62) for a track shoe grouser protector (36) includes an elongate shroud body (92) having weld holes (108) formed in a first shroud leg (72) and a second shroud leg (74) attached to a base (70) in the elongate shroud body (92). The shroud (62) may have a fore to aft profile having the form of a flat-crowned arch with the shroud legs (72,74) flared outward to form a grouser opening (76) for positioning the shroud (62) upon a track shoe grouser (30) in a ground-engaging track system (14). An inventory of shrouds (100) includes long shrouds (62) and short shrouds (62,462) positionable in a plurality of different assembly combinations to shield grousers (30) in track shoes (26) having a range of sizes.

IPC Classes  ?

  • B62D 55/28 - Ground-engaging parts or elements detachable

96.

CLOSED CENTER HOIST VALVE WITH SNUBBING

      
Document Number 03206167
Status Pending
Filing Date 2022-01-28
Open to Public Date 2022-08-04
Owner CATERPILLAR INC. (USA)
Inventor
  • Mate, Edward W.
  • O'Neill, William N.
  • Dicker, Dennis W.

Abstract

A valve for controlling a hydraulic cylinder on a work machine may include a raising position configured for placing a pump in fluid communication with a cap end of the hydraulic cylinder. The valve may also include closed center position configured for closing off fluid communication to the cap end line and the rod end line. The valve may also include a lowering position configured for placing the pump in fluid communication with the rod end of the hydraulic cylinder. The valve may also include a snubbing position configured for placing the cap end in restricted flow fluid communication with the tank and for placing the rod end in restricted flow fluid communication with the tank.

IPC Classes  ?

  • F15B 13/04 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
  • B60P 1/16 - Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load supporting or containing element actuated by fluid-operated mechanisms
  • F15B 11/04 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed
  • F15B 11/048 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed depending on the position of the working member with deceleration control

97.

SLIDER FOR SUPPORTING A TRACK

      
Document Number 03206157
Status Pending
Filing Date 2021-12-20
Open to Public Date 2022-08-04
Owner CATERPILLAR INC. (USA)
Inventor
  • Baldwin, Alex D.
  • Dumitru, Mircea

Abstract

A slider includes a first segment and a second segment. The first segment includes a first upper surface, a first lower surface, and a first interior surface that connects the first upper surface to the first lower surface. The first upper surface is configured to support a track. The first interior surface includes a first component of an attachment mechanism. The second segment includes a second upper surface, a second lower surface, and a second interior surface that connects the second upper surface to the second lower surface. The second upper surface is configured to support the track. The second interior surface includes a second component of the attachment mechanism that is configured to be removably attached to the first component.

IPC Classes  ?

  • B62D 55/084 - Endless-track units or carriages mounted separably, adjustably or extensibly on vehicles, e.g. portable track units

98.

WEAR PART REMOVAL SYSTEM

      
Document Number 03205322
Status Pending
Filing Date 2021-12-20
Open to Public Date 2022-07-28
Owner CATERPILLAR INC. (USA)
Inventor Kunz, Phillip J.

Abstract

A wear part removal system (200) includes a handle (204), a positioning system (218) configured to control an approach angle (402, 406) of the wear part removal system (200) to a wear part (104), a clamping system (210) that includes a plurality of clamps (212) and that is configured to clamp the wear part (104), a contact component (216) configured to contact a portion of the wear part (104), and a vibrator device (214) configured to generate a vibratory force that is to be transmitted to the wear part (104).

IPC Classes  ?

  • E02F 9/28 - Small metalwork for digging elements, e.g. teeth

99.

ULTRASONIC WEAR MEASUREMENT FOR A TRACK PAD

      
Document Number 03205702
Status Pending
Filing Date 2021-12-20
Open to Public Date 2022-07-28
Owner CATERPILLAR INC. (USA)
Inventor
  • Jones, Benjamin Isaac
  • Dumitru, Mircea

Abstract

An onboard track machine wear measurement system (300) has an ultra-sonic probe (302) that is attached to an undercarriage (114) of the machine (100) that is disposed adjacent a track chain assembly (126), and a controller (304) that is in communication with the ultra-sonic probe (302). The controller (304) is configured to determine the thickness of a load bearing wall of a track component (200) of the track chain assembly (126).

IPC Classes  ?

  • B62D 55/21 - Links connected by transverse pivot pins

100.

DEBRIS PATH FOR MINING TRACK UTILIZING A SEALED JOINT

      
Document Number 03205324
Status Pending
Filing Date 2021-12-08
Open to Public Date 2022-07-28
Owner CATERPILLAR INC. (USA)
Inventor
  • Jones, Benjamin I.
  • Kiesel, Mark J.
  • Loeffler, Brian K.

Abstract

A track chain assembly (126) includes a first track pad (200, 200a) including a first pair of lugs (232, 234) defining a gap (236) therebetween, and a second track pad (200, 200a) including an intermediate lug (230) disposed in the gap (236). The first pair of lugs (232, 234) and the intermediate lug (230) each define a concentric bore (206, 206a), defining an axis of rotation (132) for a pinned joint (138) of the track chain assembly (126), and the concentric bore (206, 206a) of one of the first pair of lugs (232, 234) is in communication with the gap (236) with a first blend (238) disposed axially between the gap (236) and the concentric bore.

IPC Classes  ?

  • B62D 55/21 - Links connected by transverse pivot pins
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