Extractors Patents (Class 42/25)
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Patent number: 12253319Abstract: Provided herein are extractors, bolt assemblies, firearms, and related methods, devices, and assemblies. A firearm extractor includes a first end, a second end opposite the first end, an axis defined between the first end and the second end, and a pivot portion between the first end and the second end. The extractor may include a notch defined at the inner side of the extractor at an axial location between the pivot portion and the first end that, in operation, engages a cartridge casing having a diameter greater than a casing of a 5.56 NATO cartridge or other platform-standard cartridge. A thickness of the extractor in at least one location defined at the axial location of the notch disposed radially inward of one or more lugs of a barrel or a barrel extension during cycling of the bolt may be greater than 0.019 inches.Type: GrantFiled: October 27, 2021Date of Patent: March 18, 2025Assignee: WHG PROPERTIES, LLCInventors: William H. Geissele, Cory Morris
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Patent number: 12196509Abstract: In an extractor device (100) mounted in a breech (300) section of a slide with a lower part with functional elements for interaction with an upper region of a grip part (200) of a firearm with an extractor (110) mounted rotatably about an axis of rotation with an extractor claw (111) provided in the region of an end of the extractor (110) close to the barrel (210) of the firearm and a guide element (112) arranged in the region of an end of the extractor (110) remote from the barrel (210) of the firearm and interacting with an extractor spring (120) biasing the extractor (110), in order to limit a rotational movement of the extractor (110) by contacting a cartridge (400) newly supplied from a magazine. The guide element (112) is biased in the direction of a control link (130) by the extractor spring (120) arranged in an inner blind hole (113) of the extractor, said control link being configured in an extractor pocket (310) in the breech section (300) and forming a bearing of the extractor.Type: GrantFiled: July 19, 2022Date of Patent: January 14, 2025Assignee: Carl Walther GmbHInventors: Philipp Santa, Eyck Pflaumer, Martin Wonisch
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Patent number: 11988479Abstract: Disclosed herein are bolt carrier movement mechanisms that offer a higher ratio of bolt carrier applied force to user applied bolt action operating force. Such bolt carrier movement mechanism may comprise a bolt carrier, an impingement body, a primary extraction leverage member, and an action control structure coupler. The impingement body has at least one impingement surface. The primary extraction leverage member has a coupler mounting portion, an impingement member portion, and a bolt carrier mounting portion. The primary extraction leverage member is engaged at the bolt carrier mounting portion of the bolt carrier. The impingement member portion of the primary extraction leverage member is adjacent to the at least one impingement surface of the impingement body and includes at least one impingement member. The action control structure coupler is pivotably engaged with the coupler mounting portion of the primary extraction leverage member.Type: GrantFiled: September 13, 2023Date of Patent: May 21, 2024Assignee: Ares Defense Systems, Inc.Inventor: Geoffrey A. Herring
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Patent number: 11885580Abstract: Firearms with cartridge-case ejection, including a barrel with a movable bolt carrier with a bolt, with a breech face, with a movable ejector and with a firearm-fixed functional edge which pushes the ejector into its ejection position when the bolt carrier moves back after a shot has been fired. In order to create an ejection that is always evenly performed, an ejector lever is arranged on the bolt carrier so that it can be rotated about a pivot axis running normal to the firearm's central plane, which abuts against the functional edge when the bolt carrier moves backwards and thereby twisted so that it abuts an impact surface of the ejector and forces it to the eject position.Type: GrantFiled: September 30, 2020Date of Patent: January 30, 2024Assignee: GLOCK TECHNOLOGY GMBHInventor: Elmar Bilgeri
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Patent number: 11852427Abstract: Improved firearms including one or more of a removable and/or interchangeable top cover, an improved extractor mechanism, a striker safety mechanism with a direct trigger interface, a sear with direct striker interface, and/or a striker with integral striker spring retention features.Type: GrantFiled: July 27, 2022Date of Patent: December 26, 2023Assignee: Blackpowder Products, Inc.Inventors: Kyle J. Bachstein, Kathryn Hack, Jesse Carr, Michael Guttridge
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Patent number: 11754357Abstract: A bolt assembly for a rimmed-cartridge firearm has a bolt head on a forward end. An extractor is located on the bolt head and engages at least a portion of a rim of a rimmed cartridge without engaging a front surface of the rim, the extractor retaining the rim adjacent the bolt head.Type: GrantFiled: April 11, 2022Date of Patent: September 12, 2023Assignee: Zermatt Arms, Inc.Inventor: Aaron M. Tritsch
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Patent number: 11713937Abstract: Ambidextrous bolts that allow a user to quickly and easily change the side of the firearm from which a spent casing is ejected by application of a simple switching mechanism that does not require disassembly of the firearm. Aspects of the disclosure also include debris shields for improving the longevity and reliability of extractors, firearms that are configured for ambidextrous operation, methods of using firearms, and methods of modifying firearms to incorporate ambidextrous functionality.Type: GrantFiled: November 14, 2022Date of Patent: August 1, 2023Inventor: Robert J. Craig
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Patent number: 11573059Abstract: A lower receiver that may be right hand or left hand configurable is provided. The lower receiver includes a static ejector that can be easily configured for right hand or left hand positions within the same lower receiver and a magazine button assembly having a left magazine button and a right magazine button that are operatively coupled together so that either magazine button can be pushed to release the magazine. This allows the gun builder to use this one lower receiver to build a right or left handed rifle.Type: GrantFiled: June 8, 2020Date of Patent: February 7, 2023Assignee: GIBBENS ENGINEERING GROUP, LLCInventors: Kevin W. Gibbens, David W. Gibbens
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Patent number: 11525647Abstract: Provided are barrels, barrel assemblies, firearms, and associated components, assemblies, and methods. A barrel of a firearm may include an inner surface defining a bore configured to guide a projectile as the projectile is propelled through the bore by pressurized gas. The barrel may define a muzzle end, a chamber end opposite the muzzle end, and a longitudinal axis extending between the muzzle end and the chamber end. The inner surface may define a chamber at the chamber end of the barrel. The chamber may receive a cartridge and to support at least a portion of a casing of the cartridge during firing. The barrel may further define one or more barrel feed ramps at the chamber end configured to guide at least a portion of the cartridge into the chamber during an operational cycle of the firearm. The barrel may engage with a barrel extension as a barrel assembly.Type: GrantFiled: February 10, 2021Date of Patent: December 13, 2022Assignee: WHG Properties, LLCInventors: William H. Geissele, Frank Robinson, Matt Sibio
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Patent number: 11371791Abstract: An extractor of a firearm is mounted rotatably about a rotation point with an extractor claw in the region of an end of the extractor near the barrel of the firearm and a contact element in the region of an end of the extractor remote from the barrel. An extractor spring biases the extractor in an end position determined when the chamber is empty. Torque-free pulling of a cartridge case is made possible in that the extractor has a protrusion mounted in a pot of the breech. The protrusion's leading edge adjoins an undersurface of the protrusion. The protrusion is mounted on a bottom surface of the pot near the barrel. The protrusion leading edge is supported on a leading edge of the pot near the barrel. The pot leading edge forms the transition from the bottom surface to a boundary wall of the pot near the barrel. The leading edge forms a rotation axis of the extractor, which allows rotation of the extractor relative to the breech.Type: GrantFiled: January 27, 2021Date of Patent: June 28, 2022Assignee: Carl Walther GmbHInventors: Martin Andreas Kling, Eyck Pflaumer, Martin Wonisch
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Patent number: 11181331Abstract: A rifle includes a receiver and a bolt body at least partially disposed in the receiver and including a body axis. The bolt body is discretely (1) rotatable about the body axis within the receiver and (2) axially slidable along the body axis. The rife also includes a bolt handle coupled to the bolt body so as to discretely (1) rotate with the bolt body about the body axis and (2) move with the bolt body along the body axis.Type: GrantFiled: December 5, 2019Date of Patent: November 23, 2021Assignee: Q, LLCInventor: Nicholas Schafer
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Patent number: 11143471Abstract: A device is movably attachable to an upper receiver of a firearm adjacent to a rear end of an ejection port on the upper receiver. The device is configured to move linearly in directions parallel to a longitudinal axis of the upper receiver to function as a forward assist to cause a bolt carrier of the firearm to move forward with respect to the upper receiver. The device comprises a shell deflector having a deflection surface configured to deflect spent casings ejected out of the ejection port when the firearm is in operation.Type: GrantFiled: June 17, 2020Date of Patent: October 12, 2021Assignee: Strike Industries, Inc.Inventors: Shanyao Lee, Chienyuan Cheng
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Patent number: 11067348Abstract: A slide assembly for a firearm comprising a slide and an extractor assembly is provided. The slide includes a mounting recess about a top side of the slide, and a housing recess about a proximal end of the slide. The extractor assembly is mounted within the housing recess and includes a distal end for engaging a cartridge and a proximal end opposite the distal end. The proximal end terminates at a position adjacent about a mid-portion of the mounting recess. One or more retaining holes are provided within a proximal region of the mounting recess spaced from the proximal end of the extractor assembly. Firearm sights are attachable to the mounting recess via fasteners engaging the retaining holes. The retaining holes are arranged such that they do not interfere with the extractor assembly or other components within the housing recess of the slide.Type: GrantFiled: January 17, 2020Date of Patent: July 20, 2021Assignee: Shadow Systems, LLCInventors: Anthony Joseph Ribic, Richard Trevor Simpson Roe
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Patent number: 11022385Abstract: A weapon system is provided. The weapon system includes a receiver and an operating group. The operating group includes a bolt at least partially housed within the receiver; an operating rod (op-rod) assembly arranged to axially translate within the bolt. The operating group also includes a carrier assembly, a bolt assembly, and a recoil assembly. The system further includes a hinge or pivot joint at a connection between the recoil assembly and the carrier assembly, a firing pin lock, an elastomeric cone interface between the bolt assembly and the receiver, a hollowed out piston, and/or tapering on the lug of the bolt assembly.Type: GrantFiled: June 12, 2019Date of Patent: June 1, 2021Assignee: Sig Sauer, Inc.Inventors: David Luke Steimke, Bryan Charles Dustin, Aaron C. Sakash
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Patent number: 10982916Abstract: A bolt carrier group assembly and firearm containing a bolt carrier group assembly. The bolt carrier includes a first end closer to a front of the firearm and a second end closer to a rear end of the firearm and configured to slidably engage with a bolt. The bolt is configured to slide within the bolt carrier along a first axis and includes a plurality of lugs at a first end configured to engage with a corresponding plurality of lug receivers of the firearm, wherein the forward most edge of the plurality of lugs defines a bolt face of the bolt. The assembly further includes a cam pin operatively connected to the bolt and a cam slot within which the cam pin is constrained, wherein the cam pin travels along a path defined by the cam slot during rotational and translational movement of the bolt within the bolt carrier causing engagement and disengagement of the plurality of lugs and the lug receivers of the firearm.Type: GrantFiled: January 6, 2020Date of Patent: April 20, 2021Inventor: Edward Sugg
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Patent number: 10935334Abstract: Disclosed is a firearm configuration for a handgun. The firearm configuration is designed to reduce the recoil forces encountered by a user upon firing the weapon. It further includes a recoil plate that absorbs forces generated by the slide during firing. Recoil forces are reduced by lowering the firearm's center of mass and by aligning a recoiling mass with the user's arm and trigger finger. The firearm configuration further includes a locking block which prevents rotational and lateral movement of the barrel upon firing.Type: GrantFiled: April 22, 2019Date of Patent: March 2, 2021Assignee: DANIEL DEFENSE, LLCInventor: William A. Hangen
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Patent number: 10907918Abstract: An extractor for a semiautomatic firearm has an elongated strap with a hook at one end and a projection at an opposite end. The hook engages the rim of a chambered cartridge and the projection is received within a recess in the slide. A notch in the strap engages a pin in the slide to retain the extractor. One end of a leg is attached to the strap near the hook, the opposite end of the leg engages the slide. The leg acts as a biasing spring to bias the hook into engagement with the cartridge.Type: GrantFiled: January 30, 2020Date of Patent: February 2, 2021Assignee: Smith & Wesson Inc.Inventor: Brett Curry
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Patent number: 10907919Abstract: The invention relates to a firearm, comprising: a housing (1) having a barrel (2) arranged therein; a magazine, which can be inserted into a receptacle of the housing and which has cartridges; a breechblock (3), which can be moved relative to the housing (1) in the longitudinal direction of the barrel (2), for conveying cartridges out of the magazine into a cartridge chamber (4) located in the housing, and for conveying cartridge cases (5) from the cartridge chamber (4) to an ejection port (6) after a shot has been fired. An extractor (8), which is connected to the breechblock (3) and is preloaded in the direction of the cartridge case (5) by means of a spring (7), and an ejector (9), which is likewise connected to the breechblock (3), are provided for the ejection of the cartridge cases (5). The ejector (9) is arranged in a cylindrical ejector seat (10). The extractor (8) is arranged on an extractor seat (11), which is arranged for pivoting about the ejector seat (10).Type: GrantFiled: September 20, 2018Date of Patent: February 2, 2021Inventor: Rene Weilharter
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Patent number: 10697722Abstract: Described herein are side charging assemblies, side charging upper receiver assemblies, and/or upper receiver bodies for an AR style firearm and AR style firearms comprising the assemblies and/or bodies described herein.Type: GrantFiled: April 11, 2019Date of Patent: June 30, 2020Assignee: Acme Armament LLCInventors: Adam P. Kling, John Paris
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Patent number: 10677553Abstract: Provided is a firearm bolt having a rotating bolt body with a longitudinal axis with an extractor on the bolt body at a radial position relative to the axis. There are at least first and second transverse radial bores in the bolt body at an acute angle to one another converging at the longitudinal axis for selectively receiving a cam pin. Configuration of the bolt in a bolt carrier with a cam pin in the first transverse bore positions the extractor for interaction with an ejector to eject a cartridge casing to one side, and configuration with the cam pin in the second transverse bore positions the extractor for interaction with an ejector to eject a cartridge casing to an opposite side.Type: GrantFiled: July 5, 2019Date of Patent: June 9, 2020Assignee: AMBIMJB, LLCInventor: Michael Jay Brown
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Patent number: 10458733Abstract: A firearm includes a bolt mechanism with a bolt configured to receive a firing pin assembly and a bolt head assembly. The bolt head assembly includes a pivoting bolt head and an extractor. The extractor is positioned relative to the bolt such that substantially all forces applied by the extractor to the bolt mechanism are reacted within the bolt head assembly. A biasing member or element can urge a claw portion of extractor towards a distal end of the bolt head.Type: GrantFiled: January 17, 2017Date of Patent: October 29, 2019Inventor: Theodore Karagias
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Patent number: 10443963Abstract: A modified lower receiver for a standard assault rifle includes a modified receiver body and a magazine release. The modified receiver body defines a modified magazine well, a trigger well and modified forward and rear takedown holes, and the magazine release is mounted on a side of the modified receiver body and extends into the modified magazine well. The modified magazine well is longer than a magazine well of a standard lower receiver by a predetermined distance forward of the magazine release. Positions of the modified forward and rear takedown holes are also forward of respective standard positions of forward and rear takedown holes by the same predetermined distance. A method of modifying the assault rifle includes removing the standard lower receiver and firing pin from an upper receiver, installing a longer, modified firing pin into the upper receiver, and installing the modified lower receiver on the upper receiver.Type: GrantFiled: November 30, 2018Date of Patent: October 15, 2019Assignee: OSPREY COMBAT, LLCInventors: David L. Grange, Mitchel W. Shoffner, William B. Haner
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Patent number: 10436531Abstract: A recoil inversion assembly for firearms having frame, barrel for a cartridge, bolt movable during a firing cycle, firing mechanism for firing the cartridge and recoil rod with recoil spring. The recoil inversion assembly has a transfer arm with one end pivotally connected to the bolt at a bolt axis, a guide slot in the frame for slidably receiving the bolt axis as the bolt moves during a firing cycle, an inversion lever having one end pivotally connected to the opposite end of the transfer arm, a fulcrum engaged with the inversion lever for rotation of the inversion arm with respect to the frame and recoil force transmitting mechanism connected to the inversion lever for transmitting rotation of the inversion level to the recoil spring for compressing the spring such that blowback during a firing cycle is transferred through the recoil inversion assembly to the recoil spring.Type: GrantFiled: July 24, 2018Date of Patent: October 8, 2019Inventor: Michael Lytinas
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Patent number: 10429145Abstract: A firearm 10 having a selectively movable slide portion 12 which includes at least one serrated radius or shoulder edge 14, 16 and which allows the firearm 10 to be selectively cycled by engaging the at least one serrated edge 14, 16 with a surface, such as table edge 32, thereby allowing for selective and relative movement between the frame 7 and the slide portion 12.Type: GrantFiled: August 22, 2018Date of Patent: October 1, 2019Inventors: Jeffry Jerome Savitsky, John Michael Garron
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Patent number: 10393458Abstract: A blowback bolt for a firearm has a distal bolt face having an axially relieved lower lip closest to the ammunition magazine. The axial relieved lip strips the lead cartridge from the magazine by contacting the rim of the cartridge and scoops it into the counterbore seat on the distal bolt face while maintaining contact with the rim. Chamfered lateral guides at the angular extremities of an arcuate upper guidewall restrict lateral movement of the rim during the scooping.Type: GrantFiled: September 21, 2017Date of Patent: August 27, 2019Assignee: Quarter Circle 10, LLCInventors: James L. Ballantyne, Anthony W. Castaneda, Alan L. Cowgill
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Patent number: 10386142Abstract: Provided is a firearm bolt having a rotating bolt body with a longitudinal axis with an extractor on the bolt body at a radial position relative to the axis. There are at least first and second transverse bores in the bolt body at an acute angle to one another converging at the longitudinal axis for selectively receiving a cam pin. Configuration of the bolt in a bolt carrier with a cam pin in the first transverse bore positions the extractor for interaction with an ejector to eject a cartridge casing to one side, and configuration with the cam pin in the second transverse bore positions the extractor for interaction with an ejector to eject a cartridge casing to an opposite side.Type: GrantFiled: May 22, 2018Date of Patent: August 20, 2019Assignee: AMBIMJB, LLCInventor: Michael Jay Brown
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Patent number: 10330407Abstract: A gun includes a bolt member that is disposed in a gun body so as to be movable forward and rearward, that moves rearward in response to gas pressure generated by bullet shooting so as to compress a bolt spring, and that moves forward in response to release of the compressed pressure so as to perform a bullet loading operation, and a bolt stop that stops forward movement of the bolt member. The bolt stop (31) has engagement means (36) for engaging with the bolt member which moves forward to reach the engagement means (36) after last bullet shooting, and includes buffer means (40) for buffering an impact force applied to the bolt stop due to the engagement so as to act on the bolt stop.Type: GrantFiled: October 16, 2015Date of Patent: June 25, 2019Assignee: TOKYO MARUI CO, LTD.Inventor: Iwao Iwasawa
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Patent number: 10317166Abstract: A recoil reduction system for a firearm. In some embodiments, the recoil reduction includes buffer tube housed within a buttstock, and a deformable structure for setting a clearance tolerance between the buffer tube and the buttstock to reduce lateral play while enabling smooth translation therebetween. In some embodiments, a guide pin and/or skid projections provide interference between the sliding components of the recoil reduction system when in a battery configuration, while releasing the interference during a recoil event.Type: GrantFiled: February 8, 2018Date of Patent: June 11, 2019Assignee: Vista Outdoor Operations LLCInventor: Paul N. Smith
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Patent number: 10228203Abstract: A case discharge device having a case ejector for ejecting a case or a misfire for a weapon having a bolt with a bolt head, wherein a munition is supplied to a weapon barrel of the weapon by the bolt and the case or the misfire is pulled out of the weapon barrel. The case discharge device is characterized in that, now, in the bolt head, there is situated a groove into which a case ejector which is static with respect to a weapon housing engages. During the return of the bolt, the case ejector which is static with respect to the weapon housing slides within the groove and engages on the bottom of the case in order to release the latter from the bolt and, after the release, discharge said case.Type: GrantFiled: January 10, 2018Date of Patent: March 12, 2019Assignee: Rheinmetall Waffe Munition GmbHInventor: Hubert Schneider
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Patent number: 10197347Abstract: In one aspect of the invention a buffer retaining pin is provided that comprises an elongate body. The elongate body comprises a cylindrical body portion. The elongate body has a longitudinal axis, a proximal end, and an opposite open distal end. The cylindrical body has an inner chamber in communication with the open distal end. A tooth is located at the proximal end of the elongate body. The tooth is integral with and extends from the cylindrical body such that the cylindrical body portion extends between the tooth and the open distal end. The tooth defines a top side, a left side, a right side, a front face, and a rear face. The front face of the tooth extends in a plane such that the plane of the front face intersects the longitudinal axis.Type: GrantFiled: September 1, 2017Date of Patent: February 5, 2019Inventors: Paul Leitner-Wise, Christopher Donald Wood
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Patent number: 10184736Abstract: The present disclosure presents a firearm. The firearm includes a frame having a handle and a slide rail guide, the slide rail guide comprising two parallel grooves extending through a long axis of the frame, and a slide having a long axis, the slide comprising two parallel slide rails extending through the long axis of the slide, the two parallel slide rails operable for slidably engaging the two parallel grooves. The firearm also includes a first spacer, the first spacer fixedly attached to one of the frame and the slide, the first spacer operable to slidably engage the slide rails and the slide rail guide providing a first gap between one of the slide rails and the one of the grooves and a second spacer.Type: GrantFiled: January 19, 2017Date of Patent: January 22, 2019Assignee: American Classic Arms, LLCInventors: David Theodore Fumia, Ronald Herman Kohlstaedt
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Patent number: 10175013Abstract: A modified lower receiver for a standard assault rifle includes a modified receiver body and a magazine release. The modified receiver body defines a modified magazine well, a trigger well and modified forward and rear takedown holes, and the magazine release is mounted on a side of the modified receiver body and extends into the modified magazine well. The modified magazine well is longer than a magazine well of a standard lower receiver by a predetermined distance forward of the magazine release. Positions of the modified forward and rear takedown holes are also forward of respective standard positions of forward and rear takedown holes by the same predetermined distance. A method of modifying the assault rifle includes removing the standard lower receiver and firing pin from an upper receiver, installing a longer, modified firing pin into the upper receiver, and installing the modified lower receiver on the upper receiver.Type: GrantFiled: February 16, 2017Date of Patent: January 8, 2019Assignee: Osprey Combat, LLCInventors: Mitchel W. Shoffner, David L. Grange, William B. Haner
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Patent number: 10156414Abstract: A barrel bushing and retained bias assembly are provided for engaging a barrel of a firearm to accommodate relative longitudinal movement of the barrel bushing and the barrel. The barrel bushing includes a retaining channel for retaining the bias assembly, such that a portion of the bias assembly extends into a bore of the barrel bushing to contact and be partly compressed by the outside diameter of the barrel.Type: GrantFiled: November 9, 2015Date of Patent: December 18, 2018Assignee: American Classic Arms, LLCInventors: David Theodore Fumia, Ronald Herman Kohlstaedt
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Patent number: 10107577Abstract: Example apparatus are disclosed for a lockable self-loading firearm, comprising a bolt head comprising a feed regulator pin extending traverse to a longitudinal direction with respect to the firearm, a breechblock carrier in a receiver movable in a longitudinal direction with respect to the firearm, the breechblock carrier comprising a control guide extending diagonally in the longitudinal direction with respect to the firearm through which the feed regulator pin is disposed, the control guide comprising a releasing control edge, comprising a first straight edge section positioned at a shallow angle with respect to the longitudinal direction, a second straight edge section positioned at a significantly greater angle than the first straight edge section with respect to the longitudinal direction, a third curved edge section with tangents positioned at increasingly greater angles than the second straight edge section with respect to the longitudinal direction, a locking control edge opposite the releasing contrType: GrantFiled: March 7, 2018Date of Patent: October 23, 2018Assignee: Heckler & Koch GmbHInventors: Alexandra Kuhnle, Tobias Maier, Christian Deubig, Wilhelm Fischbach
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Patent number: 10082351Abstract: The present invention is directed to novel recoil inversion assemblies, which reduce recoil generated by blowback of the propellant gases, as well as their use in propellant-based projectile weapons. Such novel weapons afford reduced recoil, muzzle flip, and muzzle climb, and therefore exhibit improved manageability as compared with current related weapons, particularly when utilizing high powered ammunition. In particular, the recoil inversion assemblies of the present invention further comprise novel delayed-blowback assemblies affording utility with larger caliber ammunition.Type: GrantFiled: June 8, 2017Date of Patent: September 25, 2018Inventor: Michael Lytinas
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Patent number: 9937609Abstract: A nail-driving gun barrel assembly includes an axially extending barrel and an ejector. The barrel has a firing end portion having a cylindrical segment and a protruding segment that cooperates with the cylindrical segment to define a first cutout recess. The protruding segment is formed with a first groove. The ejector has a sleeve part and a projecting part which cooperates with the sleeve part to define a second cutout recess. The sleeve part is coaxially and slidably sleeved on the cylindrical segment. The projecting part is formed with a second groove. When the ejector is disposed at a first axial position, the first and second grooves mate each other.Type: GrantFiled: February 12, 2015Date of Patent: April 10, 2018Inventor: Chung-Heng Lee
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Patent number: 9863729Abstract: A firearm including a receiver, a barrel, a breech bolt assembly, and a trigger assembly. The bolt assembly has a bolt including a body portion, a lug portion, and a firing pin bore. The lug portion includes outward extending lugs, a cartridge recess, and an off-center hole. The bolt assembly also includes an extractor and an ejector pin. At least some of the lugs on the lug portion of the bolt have a tapering outer surface so that a rearward surface of the respective lug is taller than a forward surface of the respective lug and at least part of each tapered outer surface is taller on one side of a circumferential centerline than on another side of the circumferential centerline.Type: GrantFiled: March 12, 2014Date of Patent: January 9, 2018Assignee: Sharps Rifle Company, Inc.Inventor: Michael H. Blank
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Patent number: 9835397Abstract: Firearm ejectors and receivers and firearms including such firearm ejectors are disclosed. An example ejector for a firearm includes a body including a projection extending therefrom, the ejector to be movably coupled to a receiver of the firearm to enable the projection including an engagement surface to be disposed in a movement path of a breechblock, the engagement surface to be engaged by a cartridge casing during a recoil process to enable the cartridge casing to be ejected from the firearm; and a spring to bias the body relative to the receiver, the body to be movably relative to a longitudinal axis of the receiver upon impact with the cartridge.Type: GrantFiled: August 26, 2015Date of Patent: December 5, 2017Assignee: HECKLER & KOCH GmbHInventor: Martin Stussak
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Patent number: 9739550Abstract: A light-weight firearm and related fabrication method are described for a wear resistant feed ramp for chambering cartridges from an ammunition magazine. In one embodiment, the firearm includes a barrel and a frame defining a magazine well and cartridge feed ramp. A wear insert formed of a different material than the frame is implanted in the feed ramp adjacent to the barrel chamber. The wear insert is then machined in situ to shape forming an obliquely angled wear surface. After machining, both the frame and implanted wear insert undergo a surface hardening process together. The surface hardened wear insert has a greater surface hardness than the surface hardened frame and is better adapted to resist wear after repeated chambering of rounds. In one non-limiting example, the frame may be hard anodized aluminum and the wear insert hard anodized titanium.Type: GrantFiled: May 16, 2016Date of Patent: August 22, 2017Inventor: Richard Mochak
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Patent number: 9739554Abstract: Firearms with improved systems and methods of controlling which side of the firearm shell casings are ejected from, with ejection port covers on both sides of the firearm that open to provide cross ventilation, or both. In some embodiments, the bolt can be installed in one of two different orientations to select whether shell casings are ejected from the left or the right ejection port without a need to replace any parts. In a number of embodiments, spring loaded ejection port covers on both sides open when the firearm is fired or when the bolt or carrier of the firearm moves to provide cross ventilation through a passageway through the firearm to cool the firearm. The covers can be manually closed by the operator when the weapon is not being fired to keep dirt and debris out of the firearm.Type: GrantFiled: May 13, 2016Date of Patent: August 22, 2017Assignee: FALKOR SID, INC.Inventor: Aaron A. McGinty
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Patent number: 9677834Abstract: An extractor for a firearm and method of using the same are provided. The extractor comprises a bullet casing edge including a substantially straight portion and a tab portion situated below and extending from the substantially straight portion. The substantially straight portion is configured to engage the casing and enable it to travel vertically along the substantially straight portion while maintaining engagement therewith. The tab portion is configured to engage the casing and to inhibit it from traveling downward along the casing engagement edge below the tab portion.Type: GrantFiled: May 26, 2015Date of Patent: June 13, 2017Assignee: Apex Tactical Specialties, Inc.Inventor: Randall M. Lee
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Patent number: 9658008Abstract: A compact survival firearm is a rifle having an upper receiver body, a lower receiver body removably connectable to the upper receiver body and defining a transverse bore adapted to closely receive a takedown pin, a fastener connected to the upper receiver body and having a protruding portion protruding therefrom, the lower receiver body defining a space sized to closely receive the fastener, the protruding portion of the fastener having an end portion of a first width, and an intermediate portion of a second width less than the first width, and the space at least partially intersecting the transverse bore such that the intermediate portion of the fastener is clear of the bore to permit the presence of the takedown pin, and the end portion of the fastener prevents separation of the upper receiver from the lower receiver when a takedown pin is present in the bore.Type: GrantFiled: June 10, 2016Date of Patent: May 23, 2017Inventor: Tim Shawn Bero
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Patent number: 9612066Abstract: Firearm comprising a projectile barrel (15), a firing chamber body (16) fixed to the barrel, a breech mechanism (12) for loading a projectile in the firing chamber and ejecting the spent cartridge from the firearm after detonation, a mobile bolt (1), and a receiver structure (13) that supports and guides the mobile bolt. The mobile bolt comprises lateral bearings projecting laterally from opposite sides of the bolt, a first pair of lateral bearings (4, 4?) positioned towards a front portion of the bolt and a second pair of the lateral bearings (10, 10?) positioned towards a rear portion of the bolt.Type: GrantFiled: January 14, 2014Date of Patent: April 4, 2017Assignee: KRISS SYSTEMS SAInventors: Renaud Kerbrat, Antoine Robert, Jan Henrik Jebsen
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Patent number: 9599417Abstract: An ejector mechanism for a firearm. The ejector mechanism includes a claw-type extractor disposed opposite a ledge portion that includes an inclined face, the inclined facing being oriented to face toward a bolt face to help secure a shell casing to the bolt face during the extraction process. The claw-type extractor and inclined face, while providing positive retention of the shell casing during ejection, also cooperate to enable the shell casing to be dislodged by an ejector.Type: GrantFiled: January 16, 2015Date of Patent: March 21, 2017Assignee: Savage Arms, Inc.Inventors: Ivan Kolev, John Linscott
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Patent number: 9574834Abstract: A firearm includes a bolt mechanism with a bolt configured to receive a firing pin assembly and a bolt head assembly. The bolt head assembly includes a pivoting bolt head and an extractor. The extractor is positioned relative to the bolt such that substantially all forces applied by the extractor to the bolt mechanism are reacted within the bolt head assembly. A biasing member or element can urge a claw portion of extractor towards a distal end of the bolt head.Type: GrantFiled: June 26, 2015Date of Patent: February 21, 2017Inventor: Theodore Karagias
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Patent number: 9562730Abstract: A feed ramp system for feeding cartridges into the chamber of a firearm. The feed ramp system includes a feed ramp insert having a body with at least one attachment tab projecting therefrom. The feed ramp insert is received within a mating recess formed in the receiver and is removably coupled to the receiver to enable replacement of the feed ramp insert. The feed ramp insert includes a pair of proximal ramp surfaces that align with distal ramp surfaces form at a breech end of the firearm barrel, to define a pair of feed ramps for directing cartridges into the chamber.Type: GrantFiled: January 6, 2015Date of Patent: February 7, 2017Assignee: RA Brands, L.L.C.Inventor: Jeffrey W. Stone
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Patent number: 9464859Abstract: A firearm with barrel extension comprises a receiver, a barrel supported by the receiver that defines an ammunition shell chamber, and a rotatable locking bolt having radial bolt lugs. The bolt is carried by a slide disposed in the receiver for forward and rearward movement. A barrel extension is mounted on a rear end of the barrel which includes radial bolt locking lugs that rotatably engage the bolt lugs when the bolt is in a closed locked breech position in battery with the head of a chambered shell. The barrel extension includes a rear facing annular rim seating surface formed integrally on the barrel extension as a unitary structural part thereof. The rim seating surface extends radially inwards from an interior surface of the barrel extension to engage and support the rear rim of the chambered shell. The headspacing is defined entirely by the barrel extension independently of the barrel.Type: GrantFiled: August 3, 2015Date of Patent: October 11, 2016Inventors: Dwight Potter, Benjamin Gerard Hawkins, Michael Robert Tilton
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Patent number: 9435596Abstract: A bolt carrier group of a firearm is disclosed. The bolt carrier group may include a bolt comprising a passage, an extractor comprising a hole, and an extractor pin comprising an elongated circular body positioned within the passage and the hole to pivotably attach the extractor to the bolt. The extractor pin may include a transverse tab extending from one end of the elongated circular body.Type: GrantFiled: November 25, 2015Date of Patent: September 6, 2016Assignee: Daniel Defense, Inc.Inventors: Marvin C. Daniel, Clinton Wade Lynch
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Patent number: 9410760Abstract: A sear assembly includes a sear block with a cavity configured to receive at least part of and at least one of a sear pivot, sear lever, sear catch and disconnector. The cavity has a slot with the sear catch configured for reciprocating sliding motion in the slot between a first position in which the sear catch engages a firing pin and a second position in which the sear catch disengages from the firing pin. The sear lever and sear pivot are configured for pivoting motion in the cavity. The sear lever is operatively connected to the sear catch. The disconnector is configured to engage the sear pivot and effect movement of the sear catch from the first position to the second position and to disengage from the sear pivot to allow movement of the sear catch from the second position to the first position.Type: GrantFiled: July 30, 2015Date of Patent: August 9, 2016Assignee: Double Nickel Holdings, LLCInventor: Kevin Siddle
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Patent number: 9354009Abstract: A remote controlled firearm safety system is provided for a “Glock” type handgun having a slide member, moveable over and along a muzzle section. The recoil spring guide assembly of the weapon, installed in the muzzle section, has a flange member with a plurality of socket openings. Each socket opening contains a locking pin which is moveable between a stored position within the socket openings and an extended position. When the locking pins are extended out of the socket openings, they extend partially into the muzzle section. This prevents the slide member from being cocked and the weapon from being fired. The movement of the locking pins is controlled by a signal receiving device within the recoil spring guide assembly. Upon receipt of a remote signal by the receiving device, a motor drive and a mechanical linkage are actuated to move the locking pins out of the socket openings.Type: GrantFiled: May 12, 2015Date of Patent: May 31, 2016Inventor: Hal Fidlow