ArmWest, LLC

United States of America

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Date
2020 2
Before 2019 29
IPC Class
F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt 14
F41A 3/70 - Anti-rebound arrangements, i.e. preventing rebound of the bolt out of the firing position 13
F41A 5/24 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated by direct action of gas pressure on bolt or locking elements 13
F41A 5/18 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated 9
F41A 5/26 - Arrangements or systems for bleeding the gas from the barrel 9
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Status
Pending 1
Registered / In Force 30
Found results for  patents

1.

Firearm systems and methods

      
Application Number 16571054
Grant Number 11137222
Status In Force
Filing Date 2019-09-13
First Publication Date 2020-05-07
Grant Date 2021-10-05
Owner ARMWEST, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Mcgarry, James
  • Waterfield, Robert Lloyd
  • Latulippe, Paul N.

Abstract

A firearm can have a bolt having a plurality of locking lugs that are configured to have a shear area that is larger than that of a standard M16/M4. A bolt carrier can have a bolt that has a double cut cam having an unlocking cam surface that has sufficient dwell increase to delay a start of unlocking when the bolt carrier is used in an M4 carbine. A stepped extractor pin may be provided that prevents disengagement of the extractor pin. A tube can be configured to provide gas from a barrel of the firearm to the piston via the carrier key. The tube can have a heat radiator formed from triangular shaped threads on at least a portion of the tube. A piston on the bolt and can have a plurality of rings including pairs of mating rings that are formed and maintained as a matched pair.

IPC Classes  ?

  • F41A 5/28 - Adjustable systems
  • F41A 3/14 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
  • F41A 5/26 - Arrangements or systems for bleeding the gas from the barrel
  • F41A 5/18 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
  • F41A 5/24 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated by direct action of gas pressure on bolt or locking elements
  • F41A 13/12 - Systems for cooling the outer surface of the barrel
  • F41A 21/24 - Barrels or gun tubes with fins or ribs, e.g. for cooling
  • F16J 9/16 - Joint-closures obtained by stacking of rings
  • F41A 3/70 - Anti-rebound arrangements, i.e. preventing rebound of the bolt out of the firing position
  • F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
  • F41G 1/02 - Foresights

2.

Selective fire firearm systems and methods

      
Application Number 16695018
Grant Number 11650023
Status In Force
Filing Date 2019-11-25
First Publication Date 2020-04-02
Grant Date 2023-05-16
Owner Arm West, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Rients, Cody Lee

Abstract

A selective fire firearm may be provided having a fully automatic open bolt and a semi-automatic closed bolt mode of operation. The firearm may include a trigger group having a trigger prop that ensures that, when the trigger is released in the fully automatic open bolt mode, the bolt carrier stops in an open bolt position held by an open bolt sear. The trigger prop may include a foot that, following a first trigger pull in the fully automatic open bolt mode, slides under and props a rear end of the trigger in a position that allows the open bolt sear to catch the bolt carrier when the trigger is released and propped but prevents the trigger sear from engaging the hammer.

IPC Classes  ?

  • F41A 19/46 - Arrangements for the selection of automatic or semi-automatic fire
  • F41A 19/17 - Hair-trigger mechanisms
  • F41A 17/42 - Safeties for locking the breech-block or bolt in a safety position
  • F41A 17/16 - Cook-off prevention, i.e. prevention of spontaneous firing of a cartridge by chamber wall heat
  • F41A 17/56 - Sear safeties, i.e. means for rendering ineffective an intermediate lever transmitting trigger movement to firing pin, hammer, bolt or sear
  • F41A 3/72 - Operating handles or levers; Mounting thereof in breech-blocks or bolts
  • F41A 17/02 - Key-operated safeties
  • F41A 17/46 - Trigger safeties, i.e. means for preventing trigger movement
  • F41A 19/10 - Triggers; Trigger mountings
  • F41A 19/12 - Sears; Sear mountings
  • F41A 19/14 - Hammers, i.e. pivotably-mounted striker elements; Hammer mountings
  • F41A 19/15 - Modular firing mechanism units

3.

SELECTIVE FIRE FIREARM SYSTEMS AND METHODS

      
Application Number US2017052587
Publication Number 2018/057665
Status In Force
Filing Date 2017-09-20
Publication Date 2018-03-29
Owner ARM WEST, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Rients, Cody Lee

Abstract

A selective fire firearm may be provided having a fully automatic open bolt and a semi-automatic closed bolt mode of operation. The firearm may include a trigger group having a trigger prop that ensures that, when the trigger is released in the fully automatic open bolt mode, the bolt carrier stops in an open bolt position held by an open bolt sear. The trigger prop may include a foot that, following a first trigger pull in the fully automatic open bolt mode, slides under and props a rear end of the trigger in a position that allows the open bolt sear to catch the bolt carrier when the trigger is released and propped but prevents the trigger sear from engaging the hammer.

IPC Classes  ?

  • F41A 17/46 - Trigger safeties, i.e. means for preventing trigger movement
  • F41A 17/48 - Automatically operated trigger safeties, i.e. operated by breech opening or closing movement
  • F41A 19/12 - Sears; Sear mountings
  • F41A 19/17 - Hair-trigger mechanisms
  • F41A 17/16 - Cook-off prevention, i.e. prevention of spontaneous firing of a cartridge by chamber wall heat
  • F41A 17/42 - Safeties for locking the breech-block or bolt in a safety position
  • F41A 17/56 - Sear safeties, i.e. means for rendering ineffective an intermediate lever transmitting trigger movement to firing pin, hammer, bolt or sear
  • F41A 19/10 - Triggers; Trigger mountings
  • F41A 3/72 - Operating handles or levers; Mounting thereof in breech-blocks or bolts
  • F41A 17/02 - Key-operated safeties

4.

SELECTIVE FIRE FIREARM SYSTEMS AND METHODS

      
Document Number 03037716
Status Pending
Filing Date 2017-09-20
Open to Public Date 2018-03-29
Owner ARM WEST, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Rients, Cody Lee

Abstract

A selective fire firearm may be provided having a fully automatic open bolt and a semi-automatic closed bolt mode of operation. The firearm may include a trigger group having a trigger prop that ensures that, when the trigger is released in the fully automatic open bolt mode, the bolt carrier stops in an open bolt position held by an open bolt sear. The trigger prop may include a foot that, following a first trigger pull in the fully automatic open bolt mode, slides under and props a rear end of the trigger in a position that allows the open bolt sear to catch the bolt carrier when the trigger is released and propped but prevents the trigger sear from engaging the hammer.

IPC Classes  ?

  • F41A 17/46 - Trigger safeties, i.e. means for preventing trigger movement
  • F41A 17/16 - Cook-off prevention, i.e. prevention of spontaneous firing of a cartridge by chamber wall heat
  • F41A 17/42 - Safeties for locking the breech-block or bolt in a safety position
  • F41A 17/48 - Automatically operated trigger safeties, i.e. operated by breech opening or closing movement
  • F41A 17/56 - Sear safeties, i.e. means for rendering ineffective an intermediate lever transmitting trigger movement to firing pin, hammer, bolt or sear
  • F41A 19/10 - Triggers; Trigger mountings
  • F41A 19/12 - Sears; Sear mountings
  • F41A 19/17 - Hair-trigger mechanisms

5.

Selective fire firearm systems and methods

      
Application Number 15275253
Grant Number 10488136
Status In Force
Filing Date 2016-09-23
First Publication Date 2018-03-29
Grant Date 2019-11-26
Owner ARMWEST, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Rients, Cody Lee

Abstract

A selective fire firearm may be provided having a fully automatic open bolt and a semi-automatic closed bolt mode of operation. The firearm may include a trigger group having a trigger prop that ensures that, when the trigger is released in the fully automatic open bolt mode, the bolt carrier stops in an open bolt position held by an open bolt sear. The trigger prop may include a foot that, following a first trigger pull in the fully automatic open bolt mode, slides under and props a rear end of the trigger in a position that allows the open bolt sear to catch the bolt carrier when the trigger is released and propped but prevents the trigger sear from engaging the hammer.

IPC Classes  ?

  • F41A 19/46 - Arrangements for the selection of automatic or semi-automatic fire
  • F41A 17/46 - Trigger safeties, i.e. means for preventing trigger movement
  • F41A 19/10 - Triggers; Trigger mountings
  • F41A 19/12 - Sears; Sear mountings
  • F41A 19/14 - Hammers, i.e. pivotably-mounted striker elements; Hammer mountings
  • F41A 19/15 - Modular firing mechanism units
  • F41A 3/72 - Operating handles or levers; Mounting thereof in breech-blocks or bolts
  • F41A 17/02 - Key-operated safeties
  • F41A 17/16 - Cook-off prevention, i.e. prevention of spontaneous firing of a cartridge by chamber wall heat
  • F41A 17/42 - Safeties for locking the breech-block or bolt in a safety position
  • F41A 17/56 - Sear safeties, i.e. means for rendering ineffective an intermediate lever transmitting trigger movement to firing pin, hammer, bolt or sear
  • F41A 19/17 - Hair-trigger mechanisms

6.

Firearm systems and methods

      
Application Number 15284453
Grant Number 10415906
Status In Force
Filing Date 2016-10-03
First Publication Date 2017-02-16
Grant Date 2019-09-17
Owner ARMWEST, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Mcgarry, James
  • Waterfield, Robert Lloyd
  • Latulippe, Paul N.

Abstract

A firearm can have a bolt having a plurality of locking lugs that are configured to have a shear area that is larger than that of a standard M16/M4. A bolt carrier can have a bolt that has a double cut cam having an unlocking cam surface that has sufficient dwell increase to delay a start of unlocking when the bolt carrier is used in an M4 carbine. A stepped extractor pin may be provided that prevents disengagement of the extractor pin. A tube can be configured to provide gas from a barrel of the firearm to the piston via the carrier key. The tube can have a heat radiator formed from triangular shaped threads on at least a portion of the tube. A piston on the bolt and can have a plurality of rings including pairs of mating rings that are formed and maintained as a matched pair.

IPC Classes  ?

  • F41A 5/26 - Arrangements or systems for bleeding the gas from the barrel
  • F41A 3/14 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
  • F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
  • F16J 9/16 - Joint-closures obtained by stacking of rings
  • F41A 3/70 - Anti-rebound arrangements, i.e. preventing rebound of the bolt out of the firing position
  • F41A 5/18 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
  • F41A 5/24 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated by direct action of gas pressure on bolt or locking elements
  • F41A 5/28 - Adjustable systems
  • F41A 13/12 - Systems for cooling the outer surface of the barrel
  • F41A 21/24 - Barrels or gun tubes with fins or ribs, e.g. for cooling
  • F41G 1/02 - Foresights

7.

FIREARM SYSTEMS AND METHODS

      
Document Number 02986616
Status In Force
Filing Date 2016-05-19
Open to Public Date 2017-01-05
Grant Date 2023-01-24
Owner ARM WEST, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Mcgarry, James
  • Waterfield, Robert Lloyd
  • Latulippe, Paul N., Jr.

Abstract

A firearm can have a bolt having a plurality of locking lugs that are configured to have a shear area that is larger than that of a standard M16/M4. A bolt carrier can have a bolt that has a double cut cam having an unlocking cam surface that has sufficient dwell increase to delay a start of unlocking when the bolt carrier is used in an M4 carbine. A stepped extractor pin may be provided that prevents disengagement of the extractor pin. A tube can be configured to provide gas from a barrel of the firearm to the piston via the carrier key. The tube can have a heat radiator formed from triangular shaped threads on at least a portion of the tube. A piston on the bolt and can have a plurality of rings including pairs of mating rings that are formed and maintained as a matched pair.

IPC Classes  ?

  • F41A 15/14 - Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on, or within, the bolt
  • F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
  • F41A 3/30 - Interlocking means, e.g. locking lugs, screw threads
  • F41A 3/62 - Breech mechanism, e.g. locks using combustion gas pressure for adding to the mechanical locking action, or for delaying breech opening movement
  • F41A 3/70 - Anti-rebound arrangements, i.e. preventing rebound of the bolt out of the firing position
  • F41A 5/24 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated by direct action of gas pressure on bolt or locking elements

8.

FIREARM SYSTEMS AND METHODS

      
Document Number 03180602
Status In Force
Filing Date 2016-05-19
Open to Public Date 2017-01-05
Grant Date 2023-11-28
Owner ARM WEST, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Mcgarry, James
  • Waterfield, Robert Lloyd
  • Latulippe, Paul N., Jr.

Abstract

A firearm can have a bolt having a plurality of locking lugs that are configured to have a shear area that is larger than that of a standard M16/M4. A bolt carrier can have a bolt that has a double cut cam having an unlocking cam surface that has sufficient dwell increase to delay a start of unlocking when the bolt carrier is used in an M4 carbine. A stepped extractor pin may be provided that prevents disengagement of the extractor pin. A tube can be configured to provide gas from a barrel of the firearm to the piston via the carrier key. The tube can have a heat radiator formed from triangular shaped threads on at least a portion of the tube. A piston on the bolt and can have a plurality of rings including pairs of mating rings that are formed and maintained as a matched pair.

IPC Classes  ?

  • F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
  • F41A 3/30 - Interlocking means, e.g. locking lugs, screw threads
  • F41A 3/62 - Breech mechanism, e.g. locks using combustion gas pressure for adding to the mechanical locking action, or for delaying breech opening movement
  • F41A 3/70 - Anti-rebound arrangements, i.e. preventing rebound of the bolt out of the firing position
  • F41A 5/24 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated by direct action of gas pressure on bolt or locking elements
  • F41A 13/12 - Systems for cooling the outer surface of the barrel
  • F41A 15/14 - Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on, or within, the bolt
  • F41A 21/24 - Barrels or gun tubes with fins or ribs, e.g. for cooling
  • F41G 1/02 - Foresights

9.

FIREARM SYSTEMS AND METHODS

      
Document Number 03180599
Status In Force
Filing Date 2016-05-19
Open to Public Date 2017-01-05
Grant Date 2023-11-21
Owner ARM WEST, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Mcgarry, James
  • Waterfield, Robert Lloyd
  • Latulippe, Paul N., Jr.

Abstract

A firearm can have a bolt having a plurality of locking lugs that are configured to have a shear area that is larger than that of a standard M16/M4. A bolt carrier can have a bolt that has a double cut cam having an unlocking cam surface that has sufficient dwell increase to delay a start of unlocking when the bolt carrier is used in an M4 carbine. A stepped extractor pin may be provided that prevents disengagement of the extractor pin. A tube can be configured to provide gas from a barrel of the firearm to the piston via the carrier key. The tube can have a heat radiator formed from triangular shaped threads on at least a portion of the tube. A piston on the bolt and can have a plurality of rings including pairs of mating rings that are formed and maintained as a matched pair.

IPC Classes  ?

  • F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
  • F41A 3/30 - Interlocking means, e.g. locking lugs, screw threads
  • F41A 3/62 - Breech mechanism, e.g. locks using combustion gas pressure for adding to the mechanical locking action, or for delaying breech opening movement
  • F41A 3/70 - Anti-rebound arrangements, i.e. preventing rebound of the bolt out of the firing position
  • F41A 5/24 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated by direct action of gas pressure on bolt or locking elements
  • F41A 13/12 - Systems for cooling the outer surface of the barrel
  • F41A 15/14 - Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on, or within, the bolt
  • F41A 21/24 - Barrels or gun tubes with fins or ribs, e.g. for cooling
  • F41G 1/02 - Foresights

10.

FIREARM SYSTEMS AND METHODS

      
Application Number US2016033362
Publication Number 2017/003576
Status In Force
Filing Date 2016-05-19
Publication Date 2017-01-05
Owner ARM WEST, LLC (USA)
Inventor
  • Sullivan, Leroy, James
  • Mcgarry, James
  • Waterfield, Robert, Lloyd
  • Latulippe, Paul, N., Jr.

Abstract

A firearm can have a bolt having a plurality of locking lugs that are configured to have a shear area that is larger than that of a standard M16/M4. A bolt carrier can have a bolt that has a double cut cam having an unlocking cam surface that has sufficient dwell increase to delay a start of unlocking when the bolt carrier is used in an M4 carbine. A stepped extractor pin may be provided that prevents disengagement of the extractor pin. A tube can be configured to provide gas from a barrel of the firearm to the piston via the carrier key. The tube can have a heat radiator formed from triangular shaped threads on at least a portion of the tube. A piston on the bolt and can have a plurality of rings including pairs of mating rings that are formed and maintained as a matched pair.

IPC Classes  ?

  • F41A 15/14 - Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on, or within, the bolt
  • F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
  • F41A 3/30 - Interlocking means, e.g. locking lugs, screw threads
  • F41A 3/62 - Breech mechanism, e.g. locks using combustion gas pressure for adding to the mechanical locking action, or for delaying breech opening movement
  • F41A 3/70 - Anti-rebound arrangements, i.e. preventing rebound of the bolt out of the firing position
  • F41A 5/24 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated by direct action of gas pressure on bolt or locking elements

11.

Firearm systems and methods

      
Application Number 14720713
Grant Number 09488423
Status In Force
Filing Date 2015-05-22
First Publication Date 2016-02-18
Grant Date 2016-11-08
Owner Arm West, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Mcgarry, James
  • Waterfield, Robert Lloyd
  • Latulippe, Jr., Paul N.

Abstract

A firearm can have a bolt having a plurality of locking lugs that are configured to have a shear area that is larger than that of a standard M16/M4. A bolt carrier can have a bolt that has a double cut cam having an unlocking cam surface that has sufficient dwell increase to delay a start of unlocking when the bolt carrier is used in an M4 carbine. A stepped extractor pin may be provided that prevents disengagement of the extractor pin. A tube can be configured to provide gas from a barrel of the firearm to the piston via the carrier key. The tube can have a heat radiator formed from triangular shaped threads on at least a portion of the tube. A piston on the bolt can have a plurality of rings including pairs of mating rings that are formed and maintained as a matched pair.

IPC Classes  ?

  • F41A 15/14 - Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on, or within, the bolt
  • F41A 3/14 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
  • F41A 5/26 - Arrangements or systems for bleeding the gas from the barrel
  • F16J 9/16 - Joint-closures obtained by stacking of rings
  • F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
  • F41A 3/70 - Anti-rebound arrangements, i.e. preventing rebound of the bolt out of the firing position
  • F41A 5/18 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
  • F41A 5/24 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated by direct action of gas pressure on bolt or locking elements
  • F41A 5/28 - Adjustable systems
  • F41A 13/12 - Systems for cooling the outer surface of the barrel
  • F41A 21/24 - Barrels or gun tubes with fins or ribs, e.g. for cooling

12.

High capacity magazine with multiple springs

      
Application Number 14092861
Grant Number 08813406
Status In Force
Filing Date 2013-11-27
First Publication Date 2014-08-07
Grant Date 2014-08-26
Owner ArmWest, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Waterfield, Robert Lloyd
  • Eyssautier, Hyunjung Samuel

Abstract

A high capacity box magazine is provided. A plurality of nested followers may be adapted to nest one within another and a plurality of springs may be configured to nest one within another to facilitate the advancement of cartridges within the box magazine to a firearm. A spring cup or cups may be used to nest additional springs that work in series and are nested within each other to further reduce the required height of the springs. The reliability of a conventional lower capacity box magazine may be maintained or exceeded without requiring significantly greater length in order to accommodate the increased capacity. The high capacity box magazine typically requires less frequent magazine changes than conventional lower capacity box magazines.

IPC Classes  ?

  • F41A 9/65 - Box magazines having a cartridge follower
  • F41A 9/69 - Box magazines having a cartridge follower characterised by multiple-row or zigzag arrangement of cartridges

13.

High capacity magazine

      
Application Number 14071489
Grant Number 08844183
Status In Force
Filing Date 2013-11-04
First Publication Date 2014-02-27
Grant Date 2014-09-30
Owner ArmWest, LLC (USA)
Inventor Sullivan, Leroy James

Abstract

A box magazine for a firearm may have a housing with two substantially different widths. A wider region may accommodate four columns of cartridges and may have tapered surfaces at one end that lead into a narrower region which may accommodate an interlocked and staggered double column of cartridges. Cartridges in the wider region may be separated into two staggered double columns by a free standing dividing wall and may be advanced by inner and outer contoured followers that may be nested together to form a single follower assembly surrounding the freestanding wall and that may be driven by the outer follower's spring. An inner follower spring may remain nested within the outer follower such that the two followers coordinate the advance of the two separated double columns of cartridges toward tapered surfaces that merge the two double columns into two single columns proximate the top of the dividing wall.

IPC Classes  ?

  • F41A 9/61 - Magazines
  • F41A 9/69 - Box magazines having a cartridge follower characterised by multiple-row or zigzag arrangement of cartridges
  • F41A 9/70 - Arrangements thereon for discharging, e.g. cartridge followers or discharge throats

14.

Gas regulator system

      
Application Number 13829464
Grant Number 08973483
Status In Force
Filing Date 2013-03-14
First Publication Date 2013-10-17
Grant Date 2015-03-10
Owner Arm West, LLC (USA)
Inventor Sullivan, Leroy James

Abstract

A gas regulator block can be configured to mount to a barrel of a firearm. A gas regulator can be disposed substantially within the gas regulator block and can be configured to adjustably vary an amount of gas flow through the gas regulator block. A cover may be configured to cover a portion of the gas regulator block to inhibit inadvertent adjustment of the amount of gas flow and configured to uncover the portion of the gas regulator block to facilitate intentional adjustment of the amount of gas flow. A gas passage can be formed in the gas regulator block in a forward location and the gas port can be configured to communicate gas from the barrel to the gas regulator.

IPC Classes  ?

  • F41A 5/28 - Adjustable systems
  • F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
  • F41A 3/64 - Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
  • F41A 3/66 - Breech housings or frames; Receivers
  • F41A 3/70 - Anti-rebound arrangements, i.e. preventing rebound of the bolt out of the firing position
  • F41A 3/72 - Operating handles or levers; Mounting thereof in breech-blocks or bolts
  • F41A 3/84 - Coil spring buffers mounted within the gun stock
  • F41A 5/18 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
  • F41A 5/24 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated by direct action of gas pressure on bolt or locking elements
  • F41A 5/26 - Arrangements or systems for bleeding the gas from the barrel
  • F41A 11/00 - Assembly or disassembly features; Modular concepts; Articulated or collapsible guns
  • F41A 11/04 - Articulated or collapsible guns, i.e. with hinged or telescopic parts for transport or storage
  • F41A 15/14 - Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on, or within, the bolt
  • F41A 17/00 - Safety arrangements, e.g. safeties
  • F41A 17/30 - Multiple safeties, i.e. safeties acting on at least one element of the firing mechanism and at least one other element of the gun, e.g. the moving barrel
  • F41A 17/64 - Firing-pin safeties, i.e. means for preventing movement of slidably-mounted strikers
  • F41A 19/10 - Triggers; Trigger mountings
  • F41A 19/13 - Percussion or firing pins, i.e. fixed or slidably- mounted striker elements; Mountings therefor
  • F41A 19/42 - Mechanical firing mechanisms having at least one hammer
  • F41A 19/43 - Mechanical firing mechanisms having at least one hammer in bolt-action guns
  • F41A 19/46 - Arrangements for the selection of automatic or semi-automatic fire
  • F41A 21/48 - Barrel mounting means, e.g. releasable mountings for replaceable barrels
  • F41A 35/02 - Dust- or weather-protection caps or covers
  • F41C 23/04 - Folding or telescopic stocks or stock parts
  • F41C 23/20 - Butts; Butt plates; Mountings therefor

15.

FIREARM

      
Application Number US2012021358
Publication Number 2012/097327
Status In Force
Filing Date 2012-01-13
Publication Date 2012-07-19
Owner ARMWEST, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Mcgarry, James
  • Waterfield, Robert Lloyd
  • Latulippe, Jr., Paul N.

Abstract

A firearm can have a bolt having a plurality of locking lugs that are configured to have a shear area that is at least approximately 1.3 times that of a standard M16/M4. A piston can be formed on the bolt and can have a plurality of rings that are configured to cooperate with the piston to mitigate gas leakage past the piston. Each of the rings can have a key formed thereon and a gap formed therein such that the gap of one ring is configured to receive at least a portion of the key of another ring. The bolt carrier can have a double cut cam.

IPC Classes  ?

  • F41A 5/18 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
  • F41A 5/26 - Arrangements or systems for bleeding the gas from the barrel
  • F41A 5/28 - Adjustable systems
  • F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
  • F41A 3/70 - Anti-rebound arrangements, i.e. preventing rebound of the bolt out of the firing position
  • F41A 5/24 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated by direct action of gas pressure on bolt or locking elements
  • F16J 9/16 - Joint-closures obtained by stacking of rings
  • F41A 13/12 - Systems for cooling the outer surface of the barrel
  • F41A 3/14 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
  • F41A 21/24 - Barrels or gun tubes with fins or ribs, e.g. for cooling

16.

FIREARM

      
Document Number 02824765
Status In Force
Filing Date 2012-01-13
Open to Public Date 2012-07-19
Grant Date 2017-11-07
Owner ARMWEST, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Mcgarry, James
  • Waterfield, Robert Lloyd
  • Latulippe, Paul N., Jr.

Abstract

A firearm can have a bolt having a plurality of locking lugs that are configured to have a shear area that is at least approximately 1.3 times that of a standard M16/M4. A piston can be formed on the bolt and can have a plurality of rings that are configured to cooperate with the piston to mitigate gas leakage past the piston. Each of the rings can have a key formed thereon and a gap formed therein such that the gap of one ring is configured to receive at least a portion of the key of another ring. The bolt carrier can have a double cut cam.

IPC Classes  ?

  • F41A 5/18 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
  • F16J 9/16 - Joint-closures obtained by stacking of rings
  • F41A 3/14 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
  • F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
  • F41A 3/70 - Anti-rebound arrangements, i.e. preventing rebound of the bolt out of the firing position
  • F41A 5/24 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated by direct action of gas pressure on bolt or locking elements
  • F41A 5/26 - Arrangements or systems for bleeding the gas from the barrel
  • F41A 5/28 - Adjustable systems
  • F41A 13/12 - Systems for cooling the outer surface of the barrel
  • F41A 21/24 - Barrels or gun tubes with fins or ribs, e.g. for cooling

17.

QUICK BARREL CHANGE FIREARM

      
Document Number 02824803
Status In Force
Filing Date 2012-01-13
Open to Public Date 2012-07-19
Grant Date 2017-11-07
Owner ARMWEST, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Waterfield, Robert Lloyd
  • Ostrowski, Alan H.
  • Latulippe, Paul N., Jr.
  • Eyssautier, Hyunjung Samuel

Abstract

A firearm can have a backbone, a barrel, a swinging wedge, and a barrel latch, in accordance with one or more embodiments. The barrel latch can be in mechanical communication with the swinging wedge. The barrel latch can have a first position and a second position and the swinging wedge can be configured to maintain attachment of the barrel to the backbone when the barrel latch is in the first position and is configured to release the barrel from the backbone when the barrel latch is in the second position. Thus, the firearm can provide quick barrel changes. Other features enhance the reliability and utility of the firearm.

IPC Classes  ?

  • F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt

18.

Firearm

      
Application Number 13348871
Grant Number 09038525
Status In Force
Filing Date 2012-01-12
First Publication Date 2012-07-19
Grant Date 2015-05-26
Owner ArmWest, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Mcgarry, James
  • Waterfield, Robert L.
  • Latulippe, Jr., Paul N.

Abstract

A firearm can have a bolt having a plurality of locking lugs that are configured to have a shear area that is at least approximately 1.3 times that of a standard M16/M4. A piston can be formed on the bolt and can have a plurality of rings that are configured to cooperate with the piston to mitigate gas leakage past the piston. Each of the rings can have a key formed thereon and a gap formed therein such that the gap of one ring is configured to receive at least a portion of the key of another ring. The bolt carrier can have a double cut cam.

IPC Classes  ?

  • F41A 5/26 - Arrangements or systems for bleeding the gas from the barrel
  • F41A 3/78 - Bolt buffer or recuperator means
  • F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
  • F16J 9/16 - Joint-closures obtained by stacking of rings
  • F41A 3/70 - Anti-rebound arrangements, i.e. preventing rebound of the bolt out of the firing position
  • F41A 5/18 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
  • F41A 5/24 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated by direct action of gas pressure on bolt or locking elements
  • F41A 5/28 - Adjustable systems
  • F41A 3/14 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
  • F41A 13/12 - Systems for cooling the outer surface of the barrel
  • F41A 21/24 - Barrels or gun tubes with fins or ribs, e.g. for cooling

19.

Quick barrel change firearm

      
Application Number 13350156
Grant Number 09228786
Status In Force
Filing Date 2012-01-13
First Publication Date 2012-07-19
Grant Date 2016-01-05
Owner ArmWest, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Waterfield, Robert Lloyd
  • Ostrowski, Alan H.
  • Latulippe, Jr., Paul N.
  • Eyssautier, Hyunjung Samuel

Abstract

A firearm can have a backbone, a barrel, a swinging wedge, and a barrel latch, in accordance with one or more embodiments. The barrel latch can be in mechanical communication with the swinging wedge. The barrel latch can have a first position and a second position and the swinging wedge can be configured to maintain attachment of the barrel to the backbone when the barrel latch is in the first position and is configured to release the barrel from the backbone when the barrel latch is in the second position. Thus, the firearm can provide quick barrel changes. Other features enhance the reliability and utility of the firearm.

IPC Classes  ?

  • F41A 21/48 - Barrel mounting means, e.g. releasable mountings for replaceable barrels
  • F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
  • F41A 3/64 - Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
  • F41A 3/70 - Anti-rebound arrangements, i.e. preventing rebound of the bolt out of the firing position
  • F41A 3/72 - Operating handles or levers; Mounting thereof in breech-blocks or bolts
  • F41A 3/84 - Coil spring buffers mounted within the gun stock
  • F41A 5/18 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
  • F41A 5/24 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated by direct action of gas pressure on bolt or locking elements
  • F41A 5/26 - Arrangements or systems for bleeding the gas from the barrel
  • F41A 11/00 - Assembly or disassembly features; Modular concepts; Articulated or collapsible guns
  • F41A 15/14 - Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on, or within, the bolt
  • F41A 17/00 - Safety arrangements, e.g. safeties
  • F41A 17/64 - Firing-pin safeties, i.e. means for preventing movement of slidably-mounted strikers
  • F41A 19/10 - Triggers; Trigger mountings
  • F41A 19/13 - Percussion or firing pins, i.e. fixed or slidably- mounted striker elements; Mountings therefor
  • F41A 19/42 - Mechanical firing mechanisms having at least one hammer
  • F41A 19/43 - Mechanical firing mechanisms having at least one hammer in bolt-action guns
  • F41A 19/46 - Arrangements for the selection of automatic or semi-automatic fire
  • F41A 35/02 - Dust- or weather-protection caps or covers
  • F41C 23/04 - Folding or telescopic stocks or stock parts
  • F41C 23/20 - Butts; Butt plates; Mountings therefor
  • F41A 3/66 - Breech housings or frames; Receivers
  • F41A 5/28 - Adjustable systems
  • F41A 11/04 - Articulated or collapsible guns, i.e. with hinged or telescopic parts for transport or storage
  • F41A 17/30 - Multiple safeties, i.e. safeties acting on at least one element of the firing mechanism and at least one other element of the gun, e.g. the moving barrel

20.

FIREARM

      
Application Number US2012021368
Publication Number 2012/097334
Status In Force
Filing Date 2012-01-13
Publication Date 2012-07-19
Owner ARMWEST, LLC (USA)
Inventor
  • Sullivan, Leroy, James
  • Waterfield, Robert Lloyd
  • Ostrowski, Alan H.
  • Latulippe, Jr., Paul N.
  • Eyssautier, Hyunjung Samuel

Abstract

A firearm (100) comprising a bolt carrier (111) and a backbone (103), the bolt carrier (111) being at least partially guided by the backbone (103).

IPC Classes  ?

  • F41A 3/26 - Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
  • F41A 3/64 - Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
  • F41A 3/70 - Anti-rebound arrangements, i.e. preventing rebound of the bolt out of the firing position
  • F41A 3/84 - Coil spring buffers mounted within the gun stock
  • F41A 3/72 - Operating handles or levers; Mounting thereof in breech-blocks or bolts
  • F41A 5/18 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
  • F41A 5/26 - Arrangements or systems for bleeding the gas from the barrel
  • F41A 11/00 - Assembly or disassembly features; Modular concepts; Articulated or collapsible guns
  • F41A 5/24 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated by direct action of gas pressure on bolt or locking elements
  • F41A 17/64 - Firing-pin safeties, i.e. means for preventing movement of slidably-mounted strikers
  • F41A 17/00 - Safety arrangements, e.g. safeties
  • F41A 19/10 - Triggers; Trigger mountings
  • F41A 19/42 - Mechanical firing mechanisms having at least one hammer
  • F41A 15/14 - Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on, or within, the bolt
  • F41A 19/13 - Percussion or firing pins, i.e. fixed or slidably- mounted striker elements; Mountings therefor

21.

High capacity magazine

      
Application Number 13071913
Grant Number 08572877
Status In Force
Filing Date 2011-03-25
First Publication Date 2012-07-05
Grant Date 2013-11-05
Owner ArmWest, LLC (USA)
Inventor Sullivan, Leroy James

Abstract

A box magazine for a firearm may have a housing with two substantially different widths. A wider region may accommodate four columns of cartridges and may have tapered surfaces at one end that lead into a narrower region which may accommodate an interlocked and staggered double column of cartridges. Cartridges in the wider region may be separated into two staggered double columns by a free standing dividing wall and may be advanced by inner and outer contoured followers that may be nested together to form a single follower assembly surrounding the freestanding wall and that may be driven by the outer follower's spring. An inner follower spring may remain nested within the outer follower such that the two followers coordinate the advance of the two separated double columns of cartridges toward tapered surfaces that merge the two double columns into two single columns proximate the top of the dividing wall.

IPC Classes  ?

22.

High capacity magazine with multiple springs

      
Application Number 13071990
Grant Number 08739446
Status In Force
Filing Date 2011-03-25
First Publication Date 2012-05-31
Grant Date 2014-06-03
Owner ArmWest, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Waterfield, Robert Lloyd
  • Eyssautier, Hyunjung Samuel

Abstract

A high capacity box magazine is provided. A plurality of nested followers may be adapted to nest one within another and a plurality of springs may be configured to nest one within another to facilitate the advancement of cartridges within the box magazine to a firearm. A spring cup or cups may be used to nest additional springs that work in series and are nested within each other to further reduce the required height of the springs. The reliability of a conventional lower capacity box magazine may be maintained or exceeded without requiring significantly greater length in order to accommodate the increased capacity. The high capacity box magazine typically requires less frequent magazine changes than conventional lower capacity box magazines.

IPC Classes  ?

23.

HIGH CAPACITY MAGAZINE

      
Application Number US2011030051
Publication Number 2012/003020
Status In Force
Filing Date 2011-03-25
Publication Date 2012-01-05
Owner ARMWEST, LLC (USA)
Inventor Sullivan, Leroy, James

Abstract

A box magazine for a firearm may have a housing with two substantially different widths. A wider region may accommodate four columns of cartridges and may have tapered surfaces at one end that lead into a narrower region which may accommodate an interlocked and staggered double column of cartridges. Cartridges in the wider region may be separated into two staggered double columns by a free standing dividing wall and may be advanced by inner and outer contoured followers that may be nested together to form a single follower assembly surrounding the freestanding wall and that may be driven by the outer follower's spring. An inner follower spring may remain nested within the outer follower such that the two followers coordinate the advance of the two separated double columns of cartridges toward tapered surfaces that merge the two double columns into two single columns proximate the top of the dividing wall.

IPC Classes  ?

  • F41A 9/69 - Box magazines having a cartridge follower characterised by multiple-row or zigzag arrangement of cartridges
  • F41A 9/70 - Arrangements thereon for discharging, e.g. cartridge followers or discharge throats

24.

HIGH CAPACITY MAGAZINE

      
Document Number 02793964
Status In Force
Filing Date 2011-03-25
Open to Public Date 2012-01-05
Grant Date 2017-06-20
Owner ARMWEST, LLC (USA)
Inventor Sullivan, Leroy James

Abstract

A box magazine for a firearm may have a housing with two substantially different widths. A wider region may accommodate four columns of cartridges and may have tapered surfaces at one end that lead into a narrower region which may accommodate an interlocked and staggered double column of cartridges. Cartridges in the wider region may be separated into two staggered double columns by a free standing dividing wall and may be advanced by inner and outer contoured followers that may be nested together to form a single follower assembly surrounding the freestanding wall and that may be driven by the outer follower's spring. An inner follower spring may remain nested within the outer follower such that the two followers coordinate the advance of the two separated double columns of cartridges toward tapered surfaces that merge the two double columns into two single columns proximate the top of the dividing wall.

IPC Classes  ?

  • F41A 9/68 - Plural magazines, e.g. tandem magazines
  • F41A 9/70 - Arrangements thereon for discharging, e.g. cartridge followers or discharge throats

25.

HIGH CAPACITY MAGAZINE WITH MULTIPLE SPRINGS

      
Document Number 02793968
Status In Force
Filing Date 2011-03-25
Open to Public Date 2011-12-22
Grant Date 2017-03-21
Owner ARMWEST, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Waterfield, Robert Lloyd
  • Eyssautier, Hyunjung Samuel

Abstract

A high capacity box magazine (100) is provided. A plurality of nested followers (161,162) may be adapted to nest one within another and a plurality of springs (150-152) may be configured to nest one within another to facilitate the advancement of cartridges within the box magazine to a firearm. A spring cup (160) or cups may be used to nest additional springs that work in series and are nested within each other to further reduce the required height of the springs. The reliability of a conventional lower capacity box magazine may be maintained or exceeded without requiring significantly greater length in order to accommodate the increased capacity. The high capacity box magazine typically requires less frequent magazine changes than conventional lower capacity box magazines.

IPC Classes  ?

  • F41A 9/68 - Plural magazines, e.g. tandem magazines
  • F41A 9/70 - Arrangements thereon for discharging, e.g. cartridge followers or discharge throats

26.

HIGH CAPACITY MAGAZINE WITH MULTIPLE SPRINGS

      
Application Number US2011030076
Publication Number 2011/159383
Status In Force
Filing Date 2011-03-25
Publication Date 2011-12-22
Owner ARMWEST, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Waterfield, Robert Lloyd
  • Eyssautier, Hyunjung Samuel

Abstract

A high capacity box magazine (100) is provided. A plurality of nested followers (161,162) may be adapted to nest one within another and a plurality of springs (150-152) may be configured to nest one within another to facilitate the advancement of cartridges within the box magazine to a firearm. A spring cup (160) or cups may be used to nest additional springs that work in series and are nested within each other to further reduce the required height of the springs. The reliability of a conventional lower capacity box magazine may be maintained or exceeded without requiring significantly greater length in order to accommodate the increased capacity. The high capacity box magazine typically requires less frequent magazine changes than conventional lower capacity box magazines.

IPC Classes  ?

  • F41A 9/69 - Box magazines having a cartridge follower characterised by multiple-row or zigzag arrangement of cartridges
  • F41A 9/70 - Arrangements thereon for discharging, e.g. cartridge followers or discharge throats

27.

Magazine for a firearm

      
Application Number 29358308
Grant Number D0646742
Status In Force
Filing Date 2010-03-25
First Publication Date 2011-10-11
Grant Date 2011-10-11
Owner ArmWest, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Waterfield, Robert Lloyd
  • Eyssautier, Hyunjung Samuel

28.

Magazine for a firearm

      
Application Number 29358320
Grant Number D0646744
Status In Force
Filing Date 2010-03-25
First Publication Date 2011-10-11
Grant Date 2011-10-11
Owner ArmWest, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Waterfield, Robert Lloyd
  • Eyssautier, Hyunjung Samuel

29.

Magazine for a firearm

      
Application Number 29358312
Grant Number D0646743
Status In Force
Filing Date 2010-03-25
First Publication Date 2011-10-11
Grant Date 2011-10-11
Owner ArmWest, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Waterfield, Robert Lloyd
  • Eyssautier, Hyunjung Samuel

30.

Magazine for a firearm

      
Application Number 29358315
Grant Number D0645111
Status In Force
Filing Date 2010-03-25
First Publication Date 2011-09-13
Grant Date 2011-09-13
Owner ArmWest, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Waterfield, Robert Lloyd
  • Eyssautier, Hyunjung Samuel

31.

Magazine for a firearm

      
Application Number 29358316
Grant Number D0645112
Status In Force
Filing Date 2010-03-25
First Publication Date 2011-09-13
Grant Date 2011-09-13
Owner ArmWest, LLC (USA)
Inventor
  • Sullivan, Leroy James
  • Waterfield, Robert Lloyd
  • Eyssautier, Hyunjung Samuel