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公开(公告)号：US12111128B2
公开(公告)日：2024-10-08
申请号：US17573591
申请日：2022-01-11
摘要： This patent relates to a smooth bore barrel, replaceable magazine fed, semi-automatic pistol weighing at least 5 pounds for discharging of slug, shot, or crowd control/specialty loads of at least 12-gauge (18.5 mm), 1.75-inch (42 mm) shell loads with a recoil energy less than 45 ft-lbs.
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公开(公告)号：US12025393B2
公开(公告)日：2024-07-02
申请号：US17341364
申请日：2021-06-07
申请人： Zachary Law
发明人： Zachary Law
摘要： The present device is a shortened recoil system designed to replace the AR-15 type recoil system, comprising the standard recoil systems of many commonly used rifles including the AR-10, AR-15, M-16 and M-4. This shortened recoil system removes or replaces the parts of the traditional recoil system located in the stocks of these rifles and place the entire recoil system within the receiver, while maintaining the alignment of the recoil system with the barrel of the rifle. A major advantage of the present system is that it allows the rifle to be fired with a folded stock or even with no stock at all, as no part of the present recoil system is located within the stock.
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公开(公告)号：US11774198B2
公开(公告)日：2023-10-03
申请号：US17968504
申请日：2022-10-18
发明人： Ennio Plebani , Mauro Brugnani , Nunzia Longobardi
摘要： A rifle has a fixed main body, including a barrel, a receiver with an upper opening, a breech element, and a trigger assembly at least partly accommodated in the receiver. The rifle has a slide assembly including a shutter group positioned on the receiver at the upper opening and axially movable by the user between an advanced shooting configuration and a retracted rearming configuration, and vice versa. The rifle includes a recoil group at least partially accommodated in the receiver, for cooperating with the slide assembly having a thrust device with a thrust lever, which is rotationally movable and a thrust spring, which performs torsional action on the thrust lever. The thrust lever extends between a lever upper end and a lever lower end. The lever upper end is suitable engageable with the advancing slide assembly to push it into the advanced configuration.
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公开(公告)号：US20230272990A1
公开(公告)日：2023-08-31
申请号：US18134112
申请日：2023-04-13
摘要： A bolt assembly has a rear block configured for connection at the rear end of the bolt passage, a bolt carrier configured to reciprocate in the bolt passage, a support element between the rear block and the bolt carrier, a first spring between the support element and the rear block, the bolt carrier defining a bore, the support element including a guide rod slidably received in the bore, and a second spring encompassing the guide rod, having a rear end abutting the support element, and a forward portion received in the bore. The bolt carrier may include a bolt carrier body, and the bolt carrier may include a weight portion movably connected to the bolt carrier body. The weight portion may define a through hole receiving an intermediate portion of the guide rod and an intermediate portion of the second spring.
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公开(公告)号：US20210372720A1
公开(公告)日：2021-12-02
申请号：US17281967
申请日：2019-06-21
摘要： The invention relates to mechanisms for cocking an automatic weapon. An automatic firearm having an inertial automation system comprises a breech, a barrel, a bolt support with a bolt, a recoil spring and a return spring, a trigger mechanism, an ammunition supply mechanism and a bolt support latch. The latch fixes the bolt support in a rear position and is controlled with a trigger. A shot is produced at the instant the bolt support arrives in a front position. A mechanism for supplying cartridges to a cartridge chamber makes it possible to load the weapon when the bolt support is fixed in the rear position. Stable operation of an inertial automation system is achieved.
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公开(公告)号：US20210164743A1
公开(公告)日：2021-06-03
申请号：US17262709
申请日：2019-04-10
IPC分类号： F41A3/82
摘要： An automatic firearm having an inertial automation system comprises a barrel, which is movable along its own axis, a bolt support with a bolt, a recoil spring, a buffer spring and a hammer spring, a trigger mechanism, an ammunition feed mechanism, a mechanism for coordinating the actual firing, and a bolt support latch. The springs and the mechanism for coordinating the actual firing ensure a constant-value recoil force during automatic fire. Technical result consists in the improvement of the shooter's operating conditions, reduced vibration, and decreased bullet dispersion.
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公开(公告)号：US10948249B2
公开(公告)日：2021-03-16
申请号：US16784709
申请日：2020-02-07
申请人： 22 Evolution LLC
摘要： A delayed blowback mechanism integrated into a firearm bolt and carrier subassembly. A cam pin extends from the bolt and, upon initiation of the cartridge discharge cycle, engages a guiding clearance or pocket configured within the firearm upper receiver for providing recoil and discharge force attenuation in a radial delayed fashion during cycling of the bolt carrier group. Recoil attenuation between the cam pin and upper receiver clearance can be provided alone or assisted by chamfer or angled contour to either or both of the radially projecting and rear contact surfaces of the bolt locking lugs and the opposing inward projections configured within the barrel extension grooves. In any variant, the bolt and associated carrier retain sufficient inertia to cycle through the discharge cycle to the set position concurrent with reloading a subsequent cartridge.
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公开(公告)号：US20210003357A1
公开(公告)日：2021-01-07
申请号：US17019686
申请日：2020-09-14
摘要： A bolt assembly is provided for a firearm. The bolt assembly comprises a block adapted to connect to a firearm frame and a bolt carrier adapted to reciprocate within the frame. The bolt assembly comprises a support element between the block and the bolt carrier. The support element is adapted to reciprocate within the frame with respect to the cap and with respect to the bolt carrier. The first and second spaced apart parallel rods are connected to the cap and extending from the cap. The bolt carrier defines a pair of spaced apart bores receiving the rods. A first spring is interposed between the block and the support element, a second spring is received on the first rod, and a third spring is received on the second rod.
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公开(公告)号：US10794647B2
公开(公告)日：2020-10-06
申请号：US16583659
申请日：2019-09-26
申请人： Richard Wilson Lage
发明人： Richard Wilson Lage
摘要： An upper receiver for the one family of firearms allows for the use of a bolt of another firearm family in the firearm action. In the depicted embodiment, an AR-15 bolt and its carrier group are simple drop-in with only the addition of a sear plate, clamp, and an insert into the bolt carrier group. The depicted receiver is designed to also prevent its use on the semi-automatic variants of the MAC family.
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公开(公告)号：US20200292254A1
公开(公告)日：2020-09-17
申请号：US16784709
申请日：2020-02-07
申请人： 22 Evolution LLC
摘要： A delayed blowback mechanism integrated into a firearm bolt and carrier subassembly. A cam pin extends from the bolt and, upon initiation of the cartridge discharge cycle, engages a guiding clearance or pocket configured within the firearm upper receiver for providing recoil and discharge force attenuation in a radial delayed fashion during cycling of the bolt carrier group. Recoil attenuation between the cam pin and upper receiver clearance can be provided alone or assisted by chamfer or angled contour to either or both of the radially projecting and rear contact surfaces of the bolt locking lugs and the opposing inward projections configured within the barrel extension grooves. In any variant, the bolt and associated carrier retain sufficient inertia to cycle through the discharge cycle to the set position concurrent with reloading a subsequent cartridge.
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