Patents Assigned to ArmWest, LLC
-
Patent number: 11137222Abstract: 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.Type: GrantFiled: September 13, 2019Date of Patent: October 5, 2021Assignee: ARMWEST, LLCInventors: Leroy James Sullivan, James McGarry, Robert Lloyd Waterfield, Paul N. Latulippe
-
Patent number: 10488136Abstract: 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.Type: GrantFiled: September 23, 2016Date of Patent: November 26, 2019Assignee: ARMWEST, LLCInventors: Leroy James Sullivan, Cody Lee Rients
-
Patent number: 10415906Abstract: 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.Type: GrantFiled: October 3, 2016Date of Patent: September 17, 2019Assignee: ARMWEST, LLCInventors: Leroy James Sullivan, James McGarry, Robert Lloyd Waterfield, Paul N. Latulippe
-
Patent number: 9228786Abstract: 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.Type: GrantFiled: January 13, 2012Date of Patent: January 5, 2016Assignee: ArmWest, LLCInventors: Leroy James Sullivan, Robert Lloyd Waterfield, Alan H. Ostrowski, Paul N. Latulippe, Jr., Hyunjung Samuel Eyssautier
-
Patent number: 9038525Abstract: 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.Type: GrantFiled: January 12, 2012Date of Patent: May 26, 2015Assignee: ArmWest, LLCInventors: Leroy James Sullivan, James McGarry, Robert L. Waterfield, Paul N. Latulippe, Jr.
-
Patent number: 8844183Abstract: 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.Type: GrantFiled: November 4, 2013Date of Patent: September 30, 2014Assignee: ArmWest, LLCInventor: Leroy James Sullivan
-
Patent number: 8813406Abstract: 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.Type: GrantFiled: November 27, 2013Date of Patent: August 26, 2014Assignee: ArmWest, LLCInventors: Leroy James Sullivan, Robert Lloyd Waterfield, Hyunjung Samuel Eyssautier
-
Publication number: 20140215877Abstract: 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.Type: ApplicationFiled: November 27, 2013Publication date: August 7, 2014Applicant: ArmWest, LLCInventors: Leroy James Sullivan, Robert Lloyd Waterfield, Hyunjung Samuel Eyssautier
-
Patent number: 8739446Abstract: 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.Type: GrantFiled: March 25, 2011Date of Patent: June 3, 2014Assignee: ArmWest, LLCInventors: Leroy James Sullivan, Robert Lloyd Waterfield, Hyunjung Samuel Eyssautier
-
Publication number: 20140053446Abstract: 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.Type: ApplicationFiled: November 4, 2013Publication date: February 27, 2014Applicant: ArmWest, LLCInventor: Leroy James Sullivan
-
Patent number: 8572877Abstract: 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.Type: GrantFiled: March 25, 2011Date of Patent: November 5, 2013Assignee: ArmWest, LLCInventor: Leroy James Sullivan
-
Publication number: 20120180648Abstract: 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.Type: ApplicationFiled: January 12, 2012Publication date: July 19, 2012Applicant: ArmWest, LLC.Inventors: Leroy James Sullivan, James McGarry, Robert Lloyd Waterfield, Paul N. Latulippe, JR.
-
Publication number: 20120180354Abstract: 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.Type: ApplicationFiled: January 13, 2012Publication date: July 19, 2012Applicant: ArmWest, LLCInventors: Leroy James Sullivan, Robert Lloyd Waterfield, Alan H. Ostrowski, Paul N. Latulippe, JR., Hyunjung Samuel Eyssautier
-
Publication number: 20120131831Abstract: 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.Type: ApplicationFiled: March 25, 2011Publication date: May 31, 2012Applicant: ArmWest, LLCInventors: Leroy James Sullivan, Robert Lloyd Waterfield, Hyunjung Samuel Eyssautier
-
Patent number: D645111Type: GrantFiled: March 25, 2010Date of Patent: September 13, 2011Assignee: ArmWest, LLCInventors: Leroy James Sullivan, Robert Lloyd Waterfield, Hyunjung Samuel Eyssautier
-
Patent number: D645112Type: GrantFiled: March 25, 2010Date of Patent: September 13, 2011Assignee: ArmWest, LLCInventors: Leroy James Sullivan, Robert Lloyd Waterfield, Hyunjung Samuel Eyssautier
-
Patent number: D646742Type: GrantFiled: March 25, 2010Date of Patent: October 11, 2011Assignee: ArmWest, LLCInventors: Leroy James Sullivan, Robert Lloyd Waterfield, Hyunjung Samuel Eyssautier
-
Patent number: D646743Type: GrantFiled: March 25, 2010Date of Patent: October 11, 2011Assignee: ArmWest, LLCInventors: Leroy James Sullivan, Robert Lloyd Waterfield, Hyunjung Samuel Eyssautier
-
Patent number: D646744Type: GrantFiled: March 25, 2010Date of Patent: October 11, 2011Assignee: ArmWest, LLCInventors: Leroy James Sullivan, Robert Lloyd Waterfield, Hyunjung Samuel Eyssautier