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公开(公告)号：US11988479B1
公开(公告)日：2024-05-21
申请号：US18466618
申请日：2023-09-13
发明人： Geoffrey A. Herring
摘要： 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.
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公开(公告)号：US11846484B2
公开(公告)日：2023-12-19
申请号：US17551361
申请日：2021-12-15
发明人： Konstantin Nedev
摘要： Firearms with gas piston assemblies have a receiver defining a passage receiving a reciprocating bolt assembly, a barrel defining a barrel axis and extending from the receiver in a forward direction and defining a barrel gas aperture, a gas block connected to the barrel and defining a piston bore in communication with the gas block bore, a piston assembly having a forward end operably engaged to the piston bore and a rear end operably engaged to the reciprocating bolt assembly, the piston assembly having a piston closely received in the piston bore and having a piston rear end, the piston assembly including an elongated intermediate rod having an intermediate rod forward end registered with the piston rear end and an intermediate rod rear end, and the piston assembly including a rear portion having a forward end registered with the intermediate rod rear end and a rear portion.
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公开(公告)号：US11828560B2
公开(公告)日：2023-11-28
申请号：US17983324
申请日：2022-11-08
发明人： Jesus S. Gomez
摘要： An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearm's gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pin's annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end. The extractor recess is constructed so that the face of the bolt is round and the adjacent lugs fully supported. The extractor engages approximately 17% more of a seated ammunition cartridge's rim as compared to the prior art AR15/M16 extractor. The result is an improved bolt and bolt carrier which provides for increased operational reliability.
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公开(公告)号：US20230349658A1
公开(公告)日：2023-11-02
申请号：US18214493
申请日：2023-06-26
发明人： Jesus S. Gomez
摘要： An upper receiver assembly for a firearm having an upper receiver with an integral barrel nut, a handguard assembly and a barrel nut assembly with a barrel and lock nut is provided. The barrel is received by the upper receiver and is secured directly to the upper receiver using the lock nut. The upper receiver also includes an integral handguard mounting member to which the handguard assembly may be directly attached. The upper receiver assembly allows the user to attach both the barrel and handguard assemblies directly to the upper receiver, independently of one another.
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公开(公告)号：US11561073B1
公开(公告)日：2023-01-24
申请号：US17323741
申请日：2021-05-18
摘要： A firearm system includes a bolt carrier with an internal cavity, a piston disposed within the internal cavity, a forward configuration where the piston is in a forwardmost position relative to the bolt carrier, and an aft configuration where the piston is in a rearmost position relative to the bolt carrier. The piston slides forward and aft relative to the bolt carrier. In the forward configuration, the entire piston remains disposed within the bolt carrier.
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公开(公告)号：US11536526B2
公开(公告)日：2022-12-27
申请号：US17470945
申请日：2021-09-09
申请人： Rustam G. Mirzoev
发明人： Rustam G. Mirzoev
摘要： An automatic weapon system including a gas evacuation opening formed in a bore of a barrel, a gas evacuation chamber, a barrel immobilizing device, a slide, a weapon frame with guides for guiding slide movement, a return spring mechanism of the slide and the breech. The gas evacuation chamber is disposed at a near-bore space located at the barrel bore outlet, a front wall of the chamber located at the barrel bore outlet is attached at the barrel outlet and having a lower part resting on a weapon frame. A rear wall of the chamber is formed by at least one bridge assembly having one end attached to the slide and another end sliding along the barrel, the bridge assembly is formed by a substantially flat plate having a groove extending from the barrel to the frame and sliding along the barrel, at least one sealing gasket. The frame of the weapon serves as the lower part of the evacuation chamber, the slide serves as upper and side walls of the chamber, a downwardly directed ledge provided at the front of the slide.
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公开(公告)号：US20220381529A1
公开(公告)日：2022-12-01
申请号：US17824578
申请日：2022-05-25
摘要： Retaining devices securable on firearms are selectively operable to engage and retain a bolt assembly in a substantially-fixed position for an indeterminate period of time. The retaining devices include a mounting plate securable to the receiver and a retention pin that extends through a passage in the mounting plate. The retention pin extends axially between first and second ends that project outwardly beyond the mounting plate. The retention pin is supported on the mounting plate for axial displacement between a first pin position and a second pin position. In the first pin position, the second end of the retention pin engages and retains the bolt assembly in a substantially-fixed position relative to the receiver. In the second pin position, the second end of the retention pin is disengaged from the bolt assembly.
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公开(公告)号：US20220333882A1
公开(公告)日：2022-10-20
申请号：US17753558
申请日：2020-09-29
发明人： Elmar BILGERI
摘要： Breechblocks for firearms, the breechblocks including a barrel axis and a barrel extension, including a bolt with cam pin and cam pin axis, and a bolt carrier which has at least one end face and an assembly groove and a substantially S-shaped cam slot with a locked position and an unlocked position, wherein the assembly groove at the locked position of the cam slot is subsequently formed substantially from behind in the forward barrel direction and is essentially U-shaped.
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公开(公告)号：US11255633B2
公开(公告)日：2022-02-22
申请号：US16747351
申请日：2020-01-20
申请人： Wilfried Alber , Georg Holthaus
发明人： Wilfried Alber , Georg Holthaus
摘要： The invention relates to a firearm, in particular for shooting cartridge ammunition, having at least one weapon chassis 3, a weapon system support 4, and a weapon system apparatus 5; at least the weapon chassis 3 and the weapon system support 4 have corresponding engagement means 10 provided in spacing patterns via which they can be axially positioned differently relative to each other.
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公开(公告)号：US11248874B2
公开(公告)日：2022-02-15
申请号：US17127037
申请日：2020-12-18
摘要： A handguard assembly for installation on a firearm includes a handguard, an index block, a first fastener, and a second fastener. The handguard includes first and second clearance apertures and the index block includes first and second threaded apertures. The first and second fasteners extend through the respective first and second clearance apertures and threaded into the respective first and second threaded apertures. The first and second fasteners define respective first and second longitudinal axes that are non-parallel and non-collinear with each other. Tightening the first and second fasteners with respect to the index block secures the handguard to the index block and prevents movement of the handguard relative firearm.
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