Abstract

A method of converting a switch assembly from a non-contact switch assembly to a contact switch assembly to detect an event. The method includes securing an adapter body outside of an enclosed housing of the switch assembly, with an actuation body connected to the adapter body, so that a target connected to the actuation body is supported outside of the enclosed housing by the adapter body and so that the actuation body is disposed to be moved relative to the adapter body from a first orientation to second orientation, upon occurrence of the event, to activate the switch assembly by moving the target between a first location outside of the enclosed housing and a second location outside of the enclosed housing. In one example, the target may be one or more of a magnetic target or a ferrous target.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H01H 3/04 - Levers
• H01H 3/12 - Push-buttons

Abstract

A valve controller includes a housing (118) defining an interior volume, and a transmission assembly (110) at least partially disposed in the interior volume of the housing. The transmission assembly includes a shaft coupled to a cam sub-assembly, which includes a first side and a second side opposite the first side, a first cam, and a second cam coupled to the first cam. Each of the first and second cams includes a bore arranged to receive the shaft and a lobe. The lobe of the first cam and the lobe of the second cam being at least partially coplanar. A first switch (130) and a second switch (134) are disposed in the interior volume of the housing and adjacent to the transmission assembly. The lobe of the first cam is arranged to activate the first switch and the lobe of the second cam is arranged to activate the second switch.

IPC Classes  ?

• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given

Abstract

A valve controller includes a housing defining an interior volume, and a transmission assembly at least partially disposed in the interior volume of the housing. The transmission assembly includes a shaft coupled to a cam sub-assembly, which includes a first side and a second side opposite the first side, a first cam, and a second cam coupled to the first cam. Each of the first and second cams includes a bore arranged to receive the shaft and a lobe. The lobe of the first cam and the lobe of the second cam being at least partially coplanar. A first switch and a second switch are disposed in the interior volume of the housing and adjacent to the transmission assembly. The lobe of the first cam is arranged to activate the first switch and the lobe of the second cam is arranged to activate the second switch.

IPC Classes  ?

• H01H 19/14 - Operating parts, e.g. turn knob
• H01H 19/62 - Contacts actuated by radial cams
• H01H 3/42 - Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric

Abstract

High temperature switch apparatus are disclosed. An example apparatus includes a first plunger housing having a first cavity and a second plunger housing having a second cavity. The first plunger housing and the second plunger housing to couple to enclose a plunger assembly of a proximity switch. A first contact housing defines a third cavity and a second contact housing defines a fourth cavity. At least a portion of the third cavity and at least a portion of the fourth cavity are complementary to a shape of an outer surface of the first plunger housing and the second plunger housing.

IPC Classes  ?

• H01H 13/14 - Operating parts, e.g. push-button
• H01F 7/16 - Rectilinearly-movable armatures
• H01H 13/06 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Abstract

Electrical switch contact sets are disclosed. A disclosed example apparatus includes a movable platform having first and second contacts, where the first and second contacts electrically coupled via the movable platform, and a stationary portion having third and fourth contacts, where the movable platform is movable to bring the first and second contacts in contact with the third and fourth contacts, respectively, to simultaneously close a current path of an electrical circuit associated with the first, second, third and fourth contacts.

IPC Classes  ?

• H01H 1/20 - Bridging contacts
• H01H 11/04 - Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Abstract

A switch assembly for adapting a non-contact switch into a contact triggered switch, such that the internal electrical state of the non-contact switch can be triggered by mechanical contact with an object or surface. The switch assembly can include an adapter body coupled to the non-contact switch and an actuation body coupled to the adapter body. The actuation body can be movable relative to the adapter body to selectively position a target supported by the actuation body within a sensing region of the non-contact switch. The actuation body can be moved by an external object making contact with a portion of the actuation body.

IPC Classes  ?

• H01H 9/00 - ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES - Details of switching devices, not covered by groups
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H01H 3/12 - Push-buttons
• H01H 3/04 - Levers

Abstract

A switch assembly for adapting a non-contact switch into a contact triggered switch, such that the internal electrical state of the non-contact switch can be triggered by mechanical contact with an object or surface. The switch assembly can include an adapter body coupled to the non- contact switch and an actuation body coupled to the adapter body. The actuation body can be movable relative to the adapter body to selectively position a target supported by the actuation body within a sensing region of the non-contact switch. The actuation body can be moved by an external object making contact with a portion of the actuation body.

Abstract

High temperature switch apparatus are disclosed. An example apparatus includes a ceramic contact base having an opening therein configured to removably receive a contact, a first ceramic plunger housing portion and a second ceramic plunger housing portion, the first ceramic plunger housing portion including a first protrusion, the second ceramic plunger housing portion including a first recess, the first recess to receive the first protrusion, and a first ceramic contact housing portion and a second ceramic contact housing portion, the first ceramic contact housing portion including a second protrusion and a first cavity, the second ceramic contact housing portion including a second recess and a second cavity, the first ceramic plunger housing portion, the second ceramic plunger housing portion, and the ceramic contact base configured to be coupled in between the first and second cavities when the second recess receives the second protrusion.

IPC Classes  ?

• H01J 5/00 - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS - Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
• H01H 13/14 - Operating parts, e.g. push-button
• H01F 7/16 - Rectilinearly-movable armatures
• H01H 13/06 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Abstract

A magnet reed switch assembly. The magnetic reed switch assembly includes a reed switch having a body and a pair of electrical contacts disposed in the body. A ring magnet has a bore, and a portion of the body of the reed switch is disposed within the bore, with the ring magnet positioned close to the pair of electrical contacts. The ring magnet is movable along the axis of the body between a first position and a second position. A plunger includes a proximal end coupled to the ring magnet and a distal end having a sensing magnet. When a ferrous target is disposed near the sensing magnet, the plunger moves toward the ferrous target causing the ring magnet to move from the first position to the second position, and the reed switch to move from an open state to a closed state.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H01H 71/24 - Electromagnetic mechanisms
• H01H 51/28 - Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed

Abstract

A magnet reed switch assembly. The magnetic reed switch assembly includes a reed switch having a body and a pair of electrical contacts disposed in the body. A ring magnet has a bore, and a portion of the body of the reed switch is disposed within the bore, with the ring magnet positioned close to the pair of electrical contacts. The ring magnet is movable along the axis of the body between a first position and a second position. A plunger includes a proximal end coupled to the ring magnet and a distal end having a sensing magnet. When a ferrous target is disposed near the sensing magnet, the plunger moves toward the ferrous target causing the ring magnet to move from the first position to the second position, and the reed switch to move from an open state to a closed state.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Abstract

Methods and apparatus for monitoring solenoid valve health are disclosed. A switchbox includes a state manager, a position detector, and a notification generator. The state manager changes an activation state of a solenoid valve between a first state and a second state in response to an initiation signal of a solenoid valve test. The position detector determines, based on position data obtained at the switchbox from an integrated position sensor of the solenoid valve, whether a core of the solenoid valve has moved by at least a threshold change in position within a predetermined time period following the change of the activation state of the solenoid valve. The notification generator generates a notification in response to the position detector determining that the core did not move by at least the threshold change in position within the predetermined time period. The notification indicates that the solenoid valve failed the solenoid valve test.

IPC Classes  ?

• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
• F16K 31/06 - Operating means; Releasing devices magnetic using a magnet

Abstract

Electrical switch contact sets are disclosed. A disclosed example apparatus includes a movable platform having first and second contacts, where the first and second contacts electrically coupled via the movable platform, and a stationary portion having third and fourth contacts, where the movable platform is movable to bring the first and second contacts in contact with the third and fourth contacts, respectively, to simultaneously close a current path of an electrical circuit associated with the first, second, third and fourth contacts.

IPC Classes  ?

• H01H 1/20 - Bridging contacts
• H01H 11/04 - Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Abstract

A valve signature diagnosis and leak testing device includes a spool valve operatively connected to a pilot valve, the pilot valve being configured to position the spool valve to one of an open position and a closed position. A blocker valve is fluidly connected to a control fluid outlet of the spool valve. An electrical module is operatively connected to the pilot valve, a supply of control fluid, and the blocker valve, the electrical module being capable of sending pulsed electrical signals to the pilot valve and the blocker valve to selectively position the spool valve and the blocker valve to an open or closed position.

IPC Classes  ?

• F15B 19/00 - Testing fluid-pressure actuator systems or apparatus, so far as not provided for elsewhere

Abstract

A target magnet mechanism for a proximity switch. The target magnet mechanism includes a plurality of magnets disposed in an alternating magnetic pole configuration forming a narrowed, polarity reversing magnetic field. A center magnet has a magnetic polarity opposite the magnetic polarity of a sensing magnet of the proximity switch. A flanking magnet includes a magnetic polarity opposite the magnetic polarity of the center magnet and the same as the sensing magnet. So configured, the plurality of magnets trigger the proximity switch to an activated state by pulling on a magnetic field of the proximity switch via the opposed polarity of the center magnet and the sensing magnet. In addition, the plurality of magnets release the proximity switch back to an unactivated state by pushing on the magnetic field of the proximity switch via the same polarity of the flanking magnet and the sensing magnet.

IPC Classes  ?

• H03K 17/95 - Proximity switches using a magnetic detector
• H03K 17/97 - Switches controlled by moving an element forming part of the switch using a magnetic movable element

Abstract

A target magnet mechanism for a proximity switch. The target magnet mechanism includes a plurality of magnets disposed in an alternating magnetic pole configuration forming a narrowed, polarity reversing magnetic field. A center magnet has a magnetic polarity opposite the magnetic polarity of a sensing magnet of the proximity switch. A flanking magnet includes a magnetic polarity opposite the magnetic polarity of the center magnet and the same as the sensing magnet. So configured, the plurality of magnets trigger the proximity switch to an activated state by pulling on a magnetic field of the proximity switch via the opposed polarity of the center magnet and the sensing magnet. In addition, the plurality of magnets release the proximity switch back to an unactivated state by pushing on the magnetic field of the proximity switch via the same polarity of the flanking magnet and the sensing magnet.

IPC Classes  ?

• H01H 9/00 - ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES - Details of switching devices, not covered by groups
• H03K 17/95 - Proximity switches using a magnetic detector
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H01H 11/00 - Apparatus or processes specially adapted for the manufacture of electric switches
• H01H 3/46 - Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
• H03K 17/97 - Switches controlled by moving an element forming part of the switch using a magnetic movable element

Abstract

A switch adapter can include a base having one or more openings, a support coupled to the base, and one or more retainers for coupling a switch to the adapter. The support can have one or more openings between its interior and exterior. The retainer can be adapted to couple to at least one of the base, the support, and a combination thereof. The switch adapter can include one or more switches, such as a replacement switch, and can be adapted for replacing a limit switch with a proximity switch. A proximity switch can be coupled to a switch adapter in one or more positions, and a switch adapter can be adapted to couple with a plurality of different switch mounts. A switch adapter can include a mass compensator for adjusting its center of gravity.

IPC Classes  ?

• H01H 3/16 - Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-lev
• H01H 9/02 - Bases, casings, or covers
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Abstract

A switch adapter can include a base having one or more openings, a support coupled to the base, and one or more retainers for coupling a switch to the adapter. The support can have one or more openings between its interior and exterior. The retainer can be adapted to couple to at least one of the base, the support, and a combination thereof. The switch adapter can include one or more switches, such as a replacement switch, and can be adapted for replacing a limit switch with a proximity switch. A proximity switch can be coupled to a switch adapter in one or more positions, and a switch adapter can be adapted to couple with a plurality of different switch mounts. A switch adapter can include a mass compensator for adjusting its center of gravity.

IPC Classes  ?

• H01H 3/16 - Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-lev
• H01H 9/02 - Bases, casings, or covers
• H01H 9/04 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
• G01D 11/24 - Housings
• G01D 11/30 - Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
• G01R 33/00 - Arrangements or instruments for measuring magnetic variables
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H03K 17/95 - Proximity switches using a magnetic detector
• H03K 17/945 - Proximity switches

Abstract

Actuation apparatus for use with magnetically-triggered proximity switches are described herein. An example apparatus includes an actuator shaft (116) having a first segment (168) and a second segment (170), the first segment intersecting the second segment. The first segment (168) defines a first end (172) of the actuator shaft, and the second segment (170) defines a second end (174) of the actuator shaft opposite the first end. The second segment further defines a slot (178). The apparatus further includes a detector magnet assembly (120) coupled to the first segment (168) of the actuator shaft (116) adjacent the first end (172). The apparatus further includes a switch arm (114) coupled to the second segment 170 of the actuator shaft (116). The switch arm (114) includes a first end, a second end opposite the first end, and a portion located between the first and second ends of the switch arm. The portion of the switch arm (114) is positioned in the (slot (178) of the actuator shaft.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Abstract

Actuation apparatus for use with magnetically-triggered proximity switches are described herein. An example apparatus includes an actuator shaft (116) having a first segment (168) and a second segment (170), the first segment intersecting the second segment. The first segment (168) defines a first end (172) of the actuator shaft, and the second segment (170) defines a second end (174) of the actuator shaft opposite the first end. The second segment further defines a slot (178). The apparatus further includes a detector magnet assembly (120) coupled to the first segment (168) of the actuator shaft (116) adjacent the first end (172). The apparatus further includes a switch arm (114) coupled to the second segment 170 of the actuator shaft (116). The switch arm (114) includes a first end, a second end opposite the first end, and a portion located between the first and second ends of the switch arm. The portion of the switch arm (114) is positioned in the (slot (178) of the actuator shaft.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Abstract

Actuation apparatus for use with magnetically-triggered proximity switches are described herein. An example apparatus includes an actuator shaft having a first segment and a second segment, the first segment intersecting the second segment. The first segment defines a first end of the actuator shaft, and the second segment defines a second end of the actuator shaft opposite the first end. The second segment further defines a slot. The apparatus further includes a detector magnet assembly coupled to the first segment of the actuator shaft adjacent the first end. The apparatus further includes a switch arm coupled to the second segment of the actuator shaft. The switch arm includes a first end, a second end opposite the first end, and a portion located between the first and second ends of the switch arm. The portion of the switch arm is positioned in the slot of the actuator shaft.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H01H 11/00 - Apparatus or processes specially adapted for the manufacture of electric switches

Abstract

A magnetically-triggered proximity switch includes an actuator assembly disposed within a switch body, and the actuator assembly includes an actuator body extending along an actuator axis. A primary contact and a secondary contact is each coupled to the actuator body and may be separated from a center contact along the actuator axis. The actuator assembly is pivotable between a first switch position and a second switch position about a pivot axis. In the first switch position, the center contact is in contact with a common contact and the first contact is in contact with a primary contact, thereby completing a circuit between a common arm and a primary arm. In the second switch position, the center contact is in contact with the common contact and the second contact is in contact with a secondary contact, thereby completing a circuit between the common arm and a secondary arm.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H01H 11/04 - Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
• H01H 23/26 - Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with two operating positions one of which positions is unstable
• H01H 23/24 - Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with two operating positions

Goods & Services

industrial automation controls; electronic controllers for valves; pressure switches and sensors for monitoring, controlling, and switching hydraulic or pneumatic systems; temperature switches and sensors for monitoring, controlling, and switching hydraulic or pneumatic systems; level switches and sensors for monitoring, controlling, and switching hydraulic or pneumatic systems; flow switches and sensors for monitoring, controlling, and switching hydraulic or pneumatic systems

Abstract

Proximity switches include a hermetically sealed unit that can be used in harsh environments and under significant pressures, such as underwater and in nuclear power facilities, without having any parts that would require replacement or periodic maintenance. The proximity switches are preferably switches actuated by physical movement of a contact in response to changing magnetic forces. The switches are preferably disposed in a body tube optionally including a hermetic seal assembly to seal an open end of the body tube and/or a ferrule that prevents electrical wires attached to the switch inside the body tube from being pulled away from the switch. Further, the switches preferably maintain a contact pressure between electrical contacts sufficient to withstand acceleration seismic testing of 10 g with no contact discontinuity.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H01H 9/04 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Abstract

A calibration system having an actuator with a rotatable shaft and a switch box housing a proximity switch and a calibration mechanism. The calibration mechanism is coupled to the shaft and includes a base, a target carrier, a driver, and an actuating button having a cam. The base includes a locating magnet, and the target carrier includes a primary magnet and a bias magnet polarized in the same direction as the locating magnet. The driver is shiftable between a first position in which the driver engages the target carrier and a second position disengaged from the target carrier. The cam engages the driver and shifts the driver between the first and second positions. Upon rotation of the shaft, the bias magnet automatically moves to a position aligned with the locating magnet when the driver is in the second position.

IPC Classes  ?

• G01D 5/244 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Abstract

A valve signature diagnosis and leak testing device includes a spool valve operatively connected to a pilot valve, the pilot valve being configured to position the spool valve to one of an open position and a closed position. A blocker valve is fluidly connected to a control fluid outlet of the spool valve. An electrical module is operatively connected to the pilot valve, a supply of control fluid, and the blocker valve, the electrical module being capable of sending pulsed electrical signals to the pilot valve and the blocker valve to selectively position the spool valve and the blocker valve to an open or closed position.

IPC Classes  ?

• F15B 19/00 - Testing fluid-pressure actuator systems or apparatus, so far as not provided for elsewhere
• 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

Abstract

Proximity switches include a hermetically sealed unit that can be used in harsh environments and under significant pressures, such as underwater and in nuclear power facilities, without having any parts that would require replacement or periodic maintenance. The proximity switches are preferably switches actuated by physical movement of a contact in response to changing magnetic forces. The switches are preferably disposed in a body tube optionally including a hermetic seal assembly to seal an open end of the body tube and/or a ferrule that prevents electrical wires attached to the switch inside the body tube from being pulled away from the switch. Further, the switches preferably maintain a contact pressure between electrical contacts sufficient to withstand acceleration seismic testing of 10 g with no contact discontinuity.

IPC Classes  ?

• H01H 9/00 - ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES - Details of switching devices, not covered by groups
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H01H 9/04 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Abstract

A target detection assembly includes a detection member adapted to generate a first input signal, and an emulator module is removably secured to the detection member. The emulator module includes an emulator housing assembly removably secured to the detection member and a selection portion is disposed on the emulator housing assembly. The selection portion is configured to be oriented in a first and second selection mode. In the first selection mode, a first emulation circuit disposed within the emulator housing assembly receives the first input signal, processes the first input signal, and outputs a first output signal that is different than the first input signal. In the second selection mode, a second emulation circuit disposed within the emulator housing assembly receives the first input signal, processes the first input signal, and outputs a second output signal that is different than the first input signal and the first output signal.

IPC Classes  ?

• H01R 29/00 - Coupling parts for selective co-operation with a counterpart in different ways to establish different circuits, e.g. for voltage selection, for series/parallel selection
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
• G01M 13/00 - Testing of machine parts
• G01D 5/252 - Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts a combination of conductors or channels
• G05D 7/06 - Control of flow characterised by the use of electric means
• G01D 5/06 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using mechanical means acting through a wall or enclosure, e.g. by bellows, by magnetic coupling

Abstract

A target detection assembly includes a detection member adapted to generate a first input signal, and an emulator module is removably secured to the detection member. The emulator module includes an emulator housing assembly removably secured to the detection member and a selection portion is disposed on the emulator housing assembly. The selection portion is configured to be oriented in a first and second selection mode. In the first selection mode, a first emulation circuit disposed within the emulator housing assembly receives the first input signal, processes the first input signal, and outputs a first output signal that is different than the first input signal. In the second selection mode, a second emulation circuit disposed within the emulator housing assembly receives the first input signal, processes the first input signal, and outputs a second output signal that is different than the first input signal and the first output signal.

IPC Classes  ?

• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
• H01R 29/00 - Coupling parts for selective co-operation with a counterpart in different ways to establish different circuits, e.g. for voltage selection, for series/parallel selection

Abstract

A valve controller assembly includes a first switch that generates a first input signal based on an operational parameter of a control valve, and a docking assembly is communicatively coupled to the first switch. A switching module is removably secured to and communicatively coupled to the docking assembly such that the first switch is communicatively coupled to the switching module when the switching module is secured to the docking member. The switching module includes a first emulation circuit adapted to receive the first input signal, process the first input signal, and output a first output signal that is different than the first input signal.

IPC Classes  ?

• F16K 31/06 - Operating means; Releasing devices magnetic using a magnet
• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
• G01D 5/14 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage

Abstract

A discontinuous shaft assembly includes a first shaft arranged for rotation about a first axis and including an end arranged for placement adjacent the wall at a first desired location disposed on a first side of the wall, with a magnetic portion carried by the first shaft. The assembly also includes a second shaft arranged for rotation about a second axis and including an end arranged for placement adjacent the wall of the enclosure at a second desired location disposed on a second side of the wall, with a magnetic portion carried by the second shaft. The first magnetic portion is arranged to cooperate with the second magnetic portion so that rotation of the first shaft about the first axis causes rotation of the second shaft about the second axis.

IPC Classes  ?

• H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
• F16D 27/02 - Magnetically-actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings

Abstract

A valve controller assembly (10) includes a first switch (12A) that generates a first input signal (14) based on an operational parameter of a control valve (16), and a docking assembly (20) is communicatively coupled to the first switch (12A). A switching module (22) is removably secured to and communicatively coupled to the docking assembly (20) such that the first switch (12A) is communicatively coupled to the switching module (22) when the switching module (22) is secured to the docking member. The switching module (22) includes a first emulation circuit (24) adapted to receive the first input signal (14), process the first input signal (14), and output a first output signal (26) that is different than the first input signal (14).

IPC Classes  ?

• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
• F16K 31/04 - Operating means; Releasing devices magnetic using a motor

Abstract

A method of non-rotatably securing a target to a shaft extending along a longitudinal axis within an enclosed proximity switch assembly is described. The target support at least one target magnet and a hub having a body portion extending along the longitudinal axis. The body portion includes an outer surface and a shaft aperture extending along the longitudinal axis, and further includes at least one threaded body aperture extending from the outer surface to the shaft aperture. The shaft is inserted into the shaft aperture, and a set screw is inserted into one of the body apertures. A torque is applied to the set screw to threadably engage the set screw with the one of the body apertures such that a distal end of the set screw contacts an outer surface of the shaft. The set screw is sealed within the body aperture with a high-temperature potting.

IPC Classes  ?

• H03K 17/95 - Proximity switches using a magnetic detector
• G01R 33/00 - Arrangements or instruments for measuring magnetic variables
• H05K 5/02 - Casings, cabinets or drawers for electric apparatus - Details
• H01H 19/06 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Abstract

A quick-disconnect connector assembly includes a housing having a bore that extends up to but not through a first end of the housing. The connector assembly also includes a proximity switch disposed within the bore, and the proximity switch includes a switch body, a first contact member, and a second contact member. A portion of each of the first and second contact members extends from the switch body towards a second end of the housing. In a first switch position, a contact of a displaceable switching assembly is in contact with the first contact member, and in a second switch position, the contact is in contact with the second contact member. The connector assembly also includes an external connection assembly including a first pin that is electrically coupled to the first contact member and a second pin that is electrically coupled to the second contact member.

IPC Classes  ?

• H01R 13/703 - Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• F15B 15/28 - Means for indicating the position, e.g. end of stroke

Abstract

A quick-disconnect connector assembly includes a housing having a bore that extends up to but not through a first end of the housing. The connector assembly also includes a proximity switch disposed within the bore, and the proximity switch includes a switch body, a first contact member, and a second contact member. A portion of each of the first and second contact members extends from the switch body towards a second end of the housing. In a first switch position, a contact of a displaceable switching assembly is in contact with the first contact member, and in a second switch position, the contact is in contact with the second contact member. The connector assembly also includes an external connection assembly including a first pin that is electrically coupled to the first contact member and a second pin that is electrically coupled to the second contact member.

IPC Classes  ?

• H01H 9/00 - ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES - Details of switching devices, not covered by groups
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H01R 13/703 - Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts
• H01H 36/02 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by movement of a float carrying a magnet

Abstract

A system and method for configuring a field device of a control system is provided. The system includes a mobile computing device for communicating with a wireless adapter coupled to the field device. The mobile computing device receives an application module via a wireless network communication module. The application module, when executed by a processor, configures the field device via a wireless direct communication module. The mobile computing device includes a user-friendly graphic display to provide and receive information associated with the configuration of the field device.

IPC Classes  ?

• G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
• H04W 4/02 - Services making use of location information

Abstract

A system and method for configuring a field device of a control system is provided. The system includes a mobile computing device for communicating with a wireless adapter coupled to the field device. The mobile computing device receives an application module via a wireless network communication module. The application module, when executed by a processor, configures the field device via a wireless direct communication module. The mobile computing device includes a user-friendly graphic display to provide and receive information associated with the configuration of the field device.

IPC Classes  ?

• G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
• G05B 15/02 - Systems controlled by a computer electric
• G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
• H04W 4/02 - Services making use of location information
• H04L 29/08 - Transmission control procedure, e.g. data link level control procedure

Abstract

A configurable process control device (10), which includes a field device(12), such as a valve position controller, that can be configured by a user to emulate any one of a plurality of different types of process control devices, is provided with an electronic display assembly (16). The electronic display assembly is operatively connected with a control circuit (18) that is arranged to respond to the specific configuration of the field device to cause the electronic display assembly to display information relevant to the specific type of control device the field device has been configured to emulate. The information may include safety certification information specific to each of the different types of process control devices that the field device can be configured to emulate.

IPC Classes  ?

• G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors

Abstract

A configurable process control device, which includes a field device, such as a valve position controller, that can be configured by a user to emulate any one of a plurality of different types of process control devices, is provided with an electronic display assembly. The electronic display assembly is operatively connected with a control circuit that is arranged to respond to the specific configuration of the field device to cause the electronic display assembly to display information relevant to the specific type of control device the field device has been configured to emulate. The information may include safety certification information specific to each of the different types of process control devices that the field device can be configured to emulate.

IPC Classes  ?

• F16K 31/00 - Operating means; Releasing devices
• G05B 15/02 - Systems controlled by a computer electric
• G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors

Abstract

Apparatus for fluid control device monitoring are disclosed. An example apparatus includes a body through which a shaft extends. The shaft is to be coupled to an actuator. An angular position of the shaft is based on a position of the actuator. The apparatus includes a target coupled to the shaft and a circuit including a user configurable switch and a proximity switch. The user configurable switch is configurable to a first state or a second state. When the user configurable switch is in the first state and the target is distant from the proximity switch, the circuit is to output a first signal. When the user configurable switch is in the second state and the target is distant from the proximity switch, the circuit is to output a second signal different than the first signal.

IPC Classes  ?

• H01H 19/06 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Abstract

Magnetic switches are disclosed herein. An example apparatus includes a mount 104 and a switch actuator assembly 102 coupled to the mount. The switch actuator assembly includes a body 106, a trigger 200, and a first magnet 204 oriented to be attracted to a second magnet 202. Movement of the body from a first position to a second position causes relative movement between the first magnet and the second magnet and relative movement between the trigger and a switch.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H03K 17/97 - Switches controlled by moving an element forming part of the switch using a magnetic movable element

Abstract

Magnetic switches are disclosed herein. An example apparatus includes a mount and a switch actuator assembly coupled to the mount. The switch actuator assembly includes a body, a trigger, and a first magnet oriented to be attracted to a second magnet. Movement of the body from a first position to a second position is to cause relative movement between the first magnet and the second magnet and relative movement between the trigger and a switch.

IPC Classes  ?

• H01H 9/00 - ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES - Details of switching devices, not covered by groups
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H03K 17/97 - Switches controlled by moving an element forming part of the switch using a magnetic movable element
• H01H 3/16 - Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-lev

Abstract

Proximity switches include a hermetically sealed unit that can be used in harsh environments and under significant pressures, such as underwater and in nuclear power facilities, without having any parts that would require replacement or periodic maintenance. The proximity switches are preferably switches actuated by physical movement of a contact in response to changing magnetic forces. The switches are preferably disposed in a body tube optionally including a hermetic seal assembly to seal an open end of the body tube and/or a ferrule that prevents electrical wires attached to the switch inside the body tube from being pulled away from the switch. Further, the switches preferably maintain a contact pressure between electrical contacts sufficient to withstand acceleration seismic testing of 10 g with no contact discontinuity.

IPC Classes  ?

• H01H 9/00 - ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES - Details of switching devices, not covered by groups
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H01H 9/04 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Abstract

A magnetically-triggered proximity switch includes a cylindrical switch body and a bias member non-movably secured within the switch body. The proximity switch also includes first and second normally-closed contacts and first and second normally-open contacts. The proximity switch further includes a spherical contact magnet disposed within the switch body, with the contact magnet being movable relative to the bias member from a first switch position and a second switch position. In the first switch position, an attraction to the bias member maintains the contact magnet in contact with the first and second normally- closed contacts, thereby completing a circuit between the first and second normally-closed contacts. In the second switch position, an attraction to a movable target external to the switch body moves the contact magnet into contact with the first and second normally-open contacts, thereby completing a circuit between the first and second normally-open contacts.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Abstract

Proximity switches are disclosed that preferably are provided in a hermetically sealed unit that can be used in harsh environments and under significant pressures, such as underwater and in nuclear power facilities, without having any parts that would require replacement or periodic maintenance. The proximity switches are preferably switches actuated by physical movement of a contact in response to changing magnetic forces. The switches are preferably disposed in a body tube optionally including a hermetic seal assembly to seal an open end of the body tube and/or a ferrule that prevents electrical wires attached to the switch inside the body tube from being pulled away from the switch. Further, the switches preferably maintain a contact pressure between electrical contacts sufficient to withstand acceleration seismic testing of 10 g with no contact discontinuity.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Abstract

An enclosed proximity switch assembly includes a top enclosure and a bottom enclosure that are coupled to form an interior volume. A shaft protrusion upwardly extends from a top surface of the top enclosure, and an interior bore portion having an enclosed volume is defined within the shaft protrusion to form a portion of the interior volume. A first end of a vertical shaft is rotatably disposed within the interior bore portion such that the shaft rotates relative to the top and bottom enclosures. A samarium cobalt target magnet is coupled to the shaft, and the target magnet interacts with a samarium cobalt driver magnet within a proximity switch when the target magnet is rotated within a predetermined distance of a top portion of the proximity switch. The interaction causes a switch to move from a first state to a second state, or vice versa.

IPC Classes  ?

• H01H 9/00 - ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES - Details of switching devices, not covered by groups
• H01F 1/00 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
• H01F 6/00 - Superconducting magnets; Superconducting coils
• G01R 33/00 - Arrangements or instruments for measuring magnetic variables
• H05K 5/02 - Casings, cabinets or drawers for electric apparatus - Details
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H01H 19/06 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Abstract

An enclosed proximity switch assembly includes a top enclosure and a bottom enclosure that are coupled to form an interior volume. A shaft protrusion upwardly extends from a top surface of the top enclosure, and an interior bore portion having an enclosed volume is defined within the shaft protrusion to form a portion of the interior volume. A first end of a vertical shaft is rotatably disposed within the interior bore portion such that the shaft rotates relative to the top and bottom enclosures. A samarium cobalt target magnet is coupled to the shaft, and the target magnet interacts with a samarium cobalt driver magnet within a proximity switch when the target magnet is rotated within a predetermined distance of a top portion of the proximity switch. The interaction causes a switch to move from a first state to a second state, or vice versa.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H01H 19/06 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Abstract

Proximity switches are disclosed that preferably are provided in a hermetically sealed unit that can be used in harsh environments and under significant pressures, such as underwater and in nuclear power facilities, without having any parts that would require replacement or periodic maintenance. The proximity switches are preferably switches actuated by physical movement of a contact in response to changing magnetic forces. The switches are preferably disposed in a body tube optionally including a hermetic seal assembly to seal an open end of the body tube and/or a ferrule that prevents electrical wires attached to the switch inside the body tube from being pulled away from the switch. Further, the switches preferably maintain a contact pressure between electrical contacts sufficient to withstand acceleration seismic testing of 10g with no contact discontinuity.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H01H 9/04 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Abstract

Proximity switches include a hermetically sealed unit that can be used in harsh environments and under significant pressures, such as underwater and in nuclear power facilities, without having any parts that would require replacement or periodic maintenance. The proximity switches are preferably switches actuated by physical movement of a contact in response to changing magnetic forces. The switches are preferably disposed in a body tube optionally including a hermetic seal assembly to seal an open end of the body tube and/or a ferrule that prevents electrical wires attached to the switch inside the body tube from being pulled away from the switch. Further, the switches preferably maintain a contact pressure between electrical contacts sufficient to withstand acceleration seismic testing of 10g with no contact discontinuity.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H01H 9/04 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Abstract

Wireless flow monitoring devices are described. A device to wirelessly monitor a flow of material is described that includes a housing having a first surface and a second surface opposite the first surface, the second surface having an aperture. A lever is secured within the housing to rotate about a pivot point in response to the flow of material, where a portion of a first arm of lever is formed from a paddle arm, where an end of the paddle arm extends out the aperture of the second surface of the housing, and where a paddle is affixed to the paddle arm to be positioned within the flow of material. The device includes a magnet that is actuated by a second arm of the lever to move an amount proportional to the first arm of the lever, a portion of the magnet extending beyond the first surface of the housing, and a wireless position monitor mounted to the first surface of the housing so that a motion path of the portion of the magnet extending beyond the first surface of the housing is disposed within a channel in the base of the wireless position monitor, where the channel serves as a sensor to detect movement of the magnet.

IPC Classes  ?

• G01F 1/28 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by drag-force, e.g. vane type or impact flowmeter
• G01F 15/06 - Indicating or recording devices
• H01H 35/40 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by devices allowing continual flow of fluid, e.g. vane

Abstract

Methods and apparatus to determine a position of a valve are disclosed. An example apparatus disclosed herein includes a rotary valve assembly and a visual indicator assembly coupled to the rotary valve assembly to indicate a position of a fluid control member of the rotary valve assembly. The visual indicator assembly includes a follower and a shell surrounding the follower. A position of the follower is to correspond to the position of the fluid control member. The example apparatus further includes an electronic position monitor coupled to the shell to determine valve position information based on the position of the follower.

IPC Classes  ?

• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given

Abstract

A switch module used for position sensing may be operated in a number of modes for compatibility with a number of legacy position sensing products. A dry switch circuit can be configured to provide a direct output, emulating dry reed, high-side or low-side switched configurations. Alternatively, the dry switch circuit can be connected to an input of a NAMUR circuit to provide the known current output for that standard. In another configuration the dry switch can be selectively coupled to one of two NAMUR circuits allowing the switch module to provide a low-to-high current NAMUR output or a high-to-low current NAMUR output.

IPC Classes  ?

• H01H 47/00 - Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
• H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
• F15B 15/28 - Means for indicating the position, e.g. end of stroke

Abstract

A switch module used for position sensing may be operated in a number of modes for compatibility with a number of legacy position sensing products. A dry switch circuit can be configured to provide a direct output, emulating dry reed, high- side or low- side switched configurations. Alternatively, the dry switch circuit can be connected to an input of a NAMUR circuit to provide the known current output for that standard. In another configuration the dry switch can be selectively coupled to one of two NAMUR circuits allowing the switch module to provide a low-to-high current NAMUR output or a high-to- low current NAMUR output.

IPC Classes  ?

• H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
• F15B 15/28 - Means for indicating the position, e.g. end of stroke
• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given

Abstract

An enclosed proximity switch assembly includes a top enclosure and a bottom enclosure that are coupled to form an interior volume. A shaft protrusion upwardly extends from a top surface of the top enclosure, and an interior bore portion having an enclosed volume is defined within the shaft protrusion to form a portion of the interior volume. A first end of a vertical shaft is rotatably disposed within the interior bore portion such that the shaft rotates relative to the top and bottom enclosures. A samarium cobalt target magnet is coupled to the shaft, and the target magnet interacts with a samarium cobalt driver magnet within a proximity switch when the target magnet is rotated within a predetermined distance of a top portion of the proximity switch. The interaction causes a switch to move from a first state to a second state, or vice versa.

IPC Classes  ?

• H01H 9/00 - ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES - Details of switching devices, not covered by groups

Abstract

A safety station for use in a process plant includes one or more leverless limit switches to detect activation of one or more parts of the safety station. The safety station further includes a wireless transmitter coupled to the leverless limit switches to transmit signals associated with the safety station to a base station device, which is communicatively coupled to one or more control and/or monitoring devices.

IPC Classes  ?

• G05B 9/02 - Safety arrangements electric
• A61H 35/02 - Baths for specific parts of the body, e.g. breast douches for the eyes

Abstract

Wireless monitoring systems for use with pressure safety devices are described. An example wireless monitoring system includes a field device and a wireless transceiver coupled to the field device to receive a signal generated by the field device. The wireless transceiver has a self-contained power module. A wireless interface is communicatively coupled to the wireless transceiver without an interposing intrinsically safe barrier panel. The wireless interface wirelessly receives the signal from the wireless transceiver.

IPC Classes  ?

• G05B 23/02 - Electric testing or monitoring
• G08C 17/00 - Arrangements for transmitting signals characterised by the use of a wireless electrical link
• G05B 9/00 - Safety arrangements

Abstract

A valve signature diagnosis and leak testing device includes a spool valve operatively connected to a pilot valve, the pilot valve being configured to position the spool valve to one of an open position and a closed position. A blocker valve is fluidly connected to a control fluid outlet of the spool valve. An electrical module is operatively connected to the pilot valve, a supply of control fluid, and the blocker valve, the electrical module being capable of sending pulsed electrical signals to the pilot valve and the blocker valve to selectively position the spool valve and the blocker valve to an open or closed position.

IPC Classes  ?

• F15B 19/00 - Testing fluid-pressure actuator systems or apparatus, so far as not provided for elsewhere

Abstract

A valve signature diagnosis and leak testing device includes a spool valve operatively connected to a pilot valve, the pilot valve being configured to position the spool valve to one of an open position and a closed position. A blocker valve is fluidly connected to a control fluid outlet of the spool valve. An electrical module is operatively connected to the pilot valve, a supply of control fluid, and the blocker valve, the electrical module being capable of sending pulsed electrical signals to the pilot valve and the blocker valve to selectively position the spool valve and the blocker valve to an open or closed position.

IPC Classes  ?

• F15B 19/00 - Testing fluid-pressure actuator systems or apparatus, so far as not provided for elsewhere

Abstract

An automatic speed searching device for a partial stroke test of a control valve includes a spool valve operatively connected to a pilot valve and a blocker valve. An electrical module is operatively connected to the pilot valve, a supply of control fluid, and the blocker valve. In an open position of the spool valve, a first control fluid inlet is fluidly connected to a first control fluid outlet, and in a closed position of the spool valve the first control fluid outlet is fluidly connected to a second control fluid outlet. A method of determining an optimum stroke speed includes iteratively powering a main and secondary solenoid in the electrical module and updating parameters to move a control element of the control valve until movement of the control element is within a desired range.

IPC Classes  ?

• F15B 19/00 - Testing fluid-pressure actuator systems or apparatus, so far as not provided for elsewhere

Abstract

An automatic speed searching device for a partial stroke test of a control valve includes a spool valve operatively connected to a pilot valve and a blocker valve. An electrical module is operatively connected to the pilot valve, a supply of control fluid, and the blocker valve. In an open position of the spool valve, a first control fluid inlet is fluidly connected to a first control fluid outlet, and in a closed position of the spool valve the first control fluid outlet is fluidly connected to a second control fluid outlet. A method of determining an optimum stroke speed includes iteratively powering a main and secondary solenoid in the electrical module and updating parameters to move a control element of the control valve until movement of the control element is within a desired range.

IPC Classes  ?

• F16K 31/02 - Operating means; Releasing devices magnetic

Abstract

An enclosed proximity switch assembly includes a top enclosure and a bottom enclosure that are coupled to form an interior volume. A shaft protrusion upwardly extends from a top surface of the top enclosure, and an interior bore portion having an enclosed volume is defined within the shaft protrusion to form a portion of the interior volume. A first end of a vertical shaft is rotatably disposed within the interior bore portion such that the shaft rotates relative to the top and bottom enclosures. A samarium cobalt target magnet is coupled to the shaft, and the target magnet interacts with a samarium cobalt driver magnet within a proximity switch when the target magnet is rotated within a predetermined distance of a top portion of the proximity switch. The interaction causes a switch to move from a first state to a second state, or vice versa.

IPC Classes  ?

• H01H 19/18 - Operating parts, e.g. turn knob adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling swi
• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• H01H 19/06 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Abstract

A poppet valve assembly to control a pneumatic actuator may include a housing having a central bore. A first module may be disposed within the central bore, and the first module may have a first and second poppet valve. A second module may also be disposed within the central bore, and the second module may have a third and fourth poppet valve. A supply of pressurized fluid may be in fluid communication with a plurality of control valves such that pressurized fluid from the control valves opens and closes the poppet valves. The supply of pressurized fluid may also be in fluid communication with the first module and the second module such that the opening and closing of the poppet valves controls the position of the pneumatic actuator.

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
• F15B 13/042 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
• F15B 11/00 - Servomotor systems without provision for follow-up action

Abstract

A poppet valve assembly to control a pneumatic actuator may include a housing having a central bore. A first module may be disposed within the central bore, and the first module may have a first and second poppet valve. A second module may also be disposed within the central bore, and the second module may have a third and fourth poppet valve. A supply of pressurized fluid may be in fluid communication with a plurality of control valves such that pressurized fluid from the control valves opens and closes the poppet valves. The supply of pressurized fluid may also be in fluid communication with the first module and the second module such that the opening and closing of the poppet valves controls the position of the pneumatic actuator.

IPC Classes  ?

• F15B 11/00 - Servomotor systems without provision for follow-up action
• F15B 13/042 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure

Abstract

A magnetically-triggered proximity switch includes a cylindrical switch body and a bias member non-movably secured within the switch body. The proximity switch also includes first and second normally-closed contacts and first and second normally-open contacts. The proximity switch further includes a spherical contact magnet disposed within the switch body, with the contact magnet being movable relative to the bias member from a first switch position and a second switch position. In the first switch position, an attraction to the bias member maintains the contact magnet in contact with the first and second normally-closed contacts, thereby completing a circuit between the first and second normally-closed contacts. In the second switch position, an attraction to a movable target external to the switch body moves the contact magnet into contact with the first and second normally-open contacts, thereby completing a circuit between the first and second normally-open contacts.

IPC Classes  ?

• H01H 9/00 - ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES - Details of switching devices, not covered by groups

Abstract

A magnetically-triggered proximity switch includes a cylindrical switch body and a first magnet non-movably secured within the switch body. The proximity switch also includes a pivoting cross arm. A second magnet may be movably disposed within the switch body, and the second magnet may be rigidly connected to the cross arm. When a magnetic target is not located within a specified range of the second magnet, the first magnet attracts the second magnet, thereby pivoting the cross arm into a first switch position and closing a first circuit. However, when the magnetic target is located within the specified range, the magnetic attraction between the target and the second magnet is greater than between the second magnet and the first magnet. The second magnet is displaced towards the target away from the first magnet, thereby pivoting the cross arm into a second switch position.

IPC Classes  ?

• H01H 9/00 - ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES - Details of switching devices, not covered by groups

Abstract

A magnetically-triggered proximity switch includes a cylindrical switch body and a first magnet non-movably secured within the switch body. The proximity switch also includes a pivoting cross arm. A second magnet may be movably disposed within the switch body, and the second magnet may be rigidly connected to the cross arm. When a magnetic target is not located within a specified range of the second magnet, the first magnet attracts the second magnet, thereby pivoting the cross arm into a first switch position and closing a first circuit. However, when the magnetic target is located within the specified range, the magnetic attraction between the target and the second magnet is greater than between the second magnet and the first magnet. The second magnet is displaced towards the target away from the first magnet, thereby pivoting the cross arm into a second switch position.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Abstract

A magnetically-triggered proximity switch includes a cylindrical switch body and a first magnet non-movably secured within the switch body. The proximity switch also includes a pivoting cross arm. A second magnet may be movably disposed within the switch body, and the second magnet may be rigidly connected to the cross arm. When a magnetic target is not located within a specified range of the second magnet, the first magnet attracts the second magnet, thereby pivoting the cross arm into a first switch position and closing a first circuit. However, when the magnetic target is located within the specified range, the magnetic attraction between the target and the second magnet is greater than between the second magnet and the first magnet. The second magnet is displaced towards the target away from the first magnet, thereby pivoting the cross arm into a second switch position.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Abstract

A magnetic target (22) is provided for use with a magnetic proximity switch. The magnetic target includes a cylindrical body tube (24) having an open end that partially defines a bore. A stationary magnet (28) is located within the bore opposite the open end, and a movable magnet (30) is disposed within the bore between the stationary magnet and the open end. An adjusting member (26) is received into the bore, and a contact surface of the adjusting member engages the movable magnet (30). When the adjusting member (26) is axially displaced, the contact surface causes a corresponding displacement of the movable magnet (30) relative to the stationary magnet (28), eventually causing the magnetic flux field of each magnet to expand in a radial direction away from the longitudinal axis of each magnet. The stationary magnet and the movable magnet may be either axially-magnetized samarium-cobalt magnets or axially- magnetized neodymium magnets.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
• H01F 7/02 - Permanent magnets

Abstract

A magnetic target is provided for use with a magnetic proximity switch. The magnetic target includes a cylindrical body tube having an open end that partially defines a bore. A stationary magnet is located within the bore opposite the open end, and a movable magnet is disposed within the bore between the stationary magnet and the open end. An adjusting member is received into the bore, and a contact surface of the adjusting member engages the movable magnet. When the adjusting member is axially displaced, the contact surface causes a corresponding displacement of the movable magnet relative to the stationary magnet, eventually causing the magnetic flux field of each magnet to expand in a radial direction away from the longitudinal axis of each magnet. The stationary magnet and the movable magnet may be either axially-magnetized samarium-cobalt magnets or axially-magnetized neodymium magnets.

IPC Classes  ?

• H01H 7/02 - Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts with fluid timing means
• H01H 9/00 - ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES - Details of switching devices, not covered by groups

Abstract

A rotary actuator (100) comprises a housing (102), a shaft (104), at least one piston (106), and at least one closed-wound power spring coupled to the shaft. The housing defines a cavity. The shaft (104) is disposed supported within the cavity of the housing and adapted for rotational displacement between a first position and a second position. The at least one piston (106) is supported within the cavity of the housing and operatively coupled to the shaft. The piston is adapted for sliding displacement in association with rotational displacement of the shaft. The at least one closed- wound power spring (108) is disposed within the cavity of the housing and operatively coupled to the shaft (104). So configured, the closed-wound power spring biases the shaft and the at least one piston into a predetermined relationship.

IPC Classes  ?

• F15B 15/06 - Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non-rectilinear movement

Goods & Services

Electromechanical controls for use in monitoring, positioning and networking valves and actuators

Goods & Services

Industrial process controls and components thereof, monitors and monitoring equipment, sensors and limit switches.

Goods & Services

Industrial process controls and components thereof, monitors and monitoring equipment, sensors and limit switches.

Goods & Services

industrial process control monitors

Goods & Services

Magnetic Sensing Proximity Limit Switch