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公开(公告)号：US12123675B1
公开(公告)日：2024-10-22
申请号：US18452649
申请日：2023-08-21
申请人： John Dungan
发明人： John Dungan
摘要： The present invention is a gas block for use with a firearm that includes a tab covering the set screws and held in place by a pin that runs through the gas block body. The gas block body includes a slot around each set screw hole that allows the tab to be inserted into the gas block body. The tab provides several benefits over traditional gas block designs, including preventing the set screws from shifting or rotating during firing and allowing for easy installation and removal of the gas block without the need for specialized tools. The gas block is easily installed and removed, and the tab provides a secure and stable attachment point for the gas block. This gas block is an improvement in the field of rifle technology and is expected to find use in the firearms industry.
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2.发明公开公开(公告)号：US20240085129A1
公开(公告)日：2024-03-14
申请号：US18244769
申请日：2023-09-11
申请人： Jing Zheng
发明人： Jing Zheng
IPC分类号： F41A5/28
CPC分类号： F41A5/28
摘要： An adjustable gas system for a firearm includes a one-piece gas block body, configured to be fixed to a barrel of the firearm, and a partial annular gas regulator. The gas block includes a gas flow hole that receives a gas tube of the firearm. The gas block body also includes a gas block body bulge and a ring at one end of the gas flow hole. The gas block body clamps to a barrel of the firearm by: (i) set screw(s), and (ii) direct/physical contact of the gas block body bulge and the ring. The gas regulator, when installed on the barrel, rotatably and partially surrounds the barrel such that, as the gas regulator is rotated around the barrel from a first position to a second position, a diameter of a resultant gas port hole changes as controlled by allocation holes on the gas regulator.
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公开(公告)号：US11927417B2
公开(公告)日：2024-03-12
申请号：US17754237
申请日：2020-10-01
发明人： Josef Kroyer , Elmar Bilgeri
摘要： A firearm including a gas drive, having an annular piston which is displaceably arranged on the barrel to form an expansion chamber between two end positions. At least one gas port penetrates the wall of the barrel in the region of the expansion chamber and a selector is provided. In order to provide a simple and easily adjustable mechanism, the expansion chamber is delimited by a ring surface and an inner cylinder surface of the piston, an end surface of the selector and the barrel. The selector is rotatably arranged on the barrel with at least two predefined rest positions. In each rest position, the gas flow from the expansion chamber is delimitable by at least one selector opening formed on the selector.
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公开(公告)号：US11879700B2
公开(公告)日：2024-01-23
申请号：US17567008
申请日：2021-12-31
申请人： Savage Arms, Inc.
发明人： Aaron K. Alexander , John Linscott
摘要： A semiautomatic shotgun comprising a receiver, a barrel, a forward gas block assembly attached to the barrel, a slider assembly rearward of the gas block assembly extending into the receiver. Upon firing a shotshell the explosive gases in the barrel are diverted through two ports into the gas block assembly, specifically into a pair of lateral pressure relief valves positioned on both sides of the barrel. The pressure relief valves further having a gas pathway from the barrel provided by clusters of holes less than a specific size and on-center with the barrel axis. A piston is forced rearwardly and engages a slider of the slider assembly that is linked to a breech block in the receiver. The breech block loads unfired shells and ejects the fired shells accomplishing the semiautomatic recycling. The dual pressure relief valves actuate to moderate and limit the gas pressure that enters the piston chamber when using shotshells of different power levels thereby providing consistency in the recycling operation. The shotgun assembled with a plurality of retention pins having uniformly sized O-rings.
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公开(公告)号：US11788808B2
公开(公告)日：2023-10-17
申请号：US18109806
申请日：2023-02-14
CPC分类号： F41A5/28
摘要： Systems and methods for an adjustable gas block are described. Systems may include an adjustment subassembly. The adjustment subassembly may include a valve stem end with a front-most portion larger in diameter than the rear-most portion and a boss extending from the forward portion of the valve stem end; a valve ring surrounding the boss of the valve stem end; a valve threaded portion for receiving the boss of the valve stem end and having a threaded portion; and a valve rotator coupled to the valve threaded portion for adjusting the flow of gas. Systems may include a gas block assembly. The gas block assembly may include a gas block through hole; a first duct to direct pressurized gas from a barrel to a plenum; a second duct to direct a regulated volume of gas to a gas operating system; a seat valve to control the regulated volume of gas to the gas operating system; and a gas block threaded portion for coupling to the valve threaded portion. The adjustment subassembly may be coupled to the gas block assembly.
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6.发明授权公开(公告)号：US11740042B2
公开(公告)日：2023-08-29
申请号：US16686930
申请日：2019-11-18
申请人： RHINO PRECISION, LLC
摘要： A gas tube support system for a gas-actuated firearm contains an annular or bored housing for receipt of a gas tube therein, thereby securing the gas tube during operation of the firearm. At least one or more bores are drilled or formed within the annular or bored housing to provide an impingement of the gas tube as it extends through the annular or bored housing. One or more fasteners are threadedly or otherwise received within a corresponding one of one or more respective bores, thereby securing the gas tube within the annular or bored housing. A gas-actuated firearm containing the gas tube support system is also provided.
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公开(公告)号：US11619459B2
公开(公告)日：2023-04-04
申请号：US17372729
申请日：2021-07-12
申请人： Game Scout, LLC
发明人： Kyle Lynch
IPC分类号： F41A5/28
摘要： A system for an adjustable gas block. The gas block body has a main chamber fluidly coupled to a gas aperture which is fluidly connected to a plunger channel and a gas return path. Downstream of the gas block body is a plunger assembly which includes a ring and a plunger. Further downstream is an adjustment knob which is coupled to the gas block body and which is adjustable upstream and downstream relative to the gas block body. The volume of plunger inserted into the channel path is controlled by the adjustment knob.
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公开(公告)号：US11506460B1
公开(公告)日：2022-11-22
申请号：US17328307
申请日：2021-05-24
申请人： Fuller Phoenix, LLC
发明人： Jim Fuller , Leif Strom , Kevin Yang
IPC分类号： F41A5/28
摘要： Multi-modal gas blocks utilized in conjunction with gas piston-operated firearms are disclosed, as are firearms equipped with such gas blocks. In embodiments, the multi-modal gas block includes a gas block body, a valve element cavity, a gas inlet port through which the valve element cavity is fluidly coupled to a barrel bleed port of a firearm, a gas exhaust port fluidly coupled to the valve element cavity, and a gas return port fluidly coupling the valve element cavity to a gas piston cylinder contained in the firearm. A valve element housed within the valve element cavity is movable between: (i) a first position in which the valve element blocks gas flow from the gas inlet port to the gas exhaust port; and (ii) a second position in which the valve element divides gas flow received at the gas inlet port between the gas return and gas exhaust ports.
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公开(公告)号：US20220307783A1
公开(公告)日：2022-09-29
申请号：US17578133
申请日：2022-01-18
申请人： Eight Holdings LLC
发明人： Teodor Puha , Edmund Ziegler
IPC分类号： F41A5/28
摘要： A gas block for AR-platform firearms is provided which is easier to install and index on a barrel of the firearm by utilizing a wedge (e.g., collet) system. The body of the gas block may therefore be relatively precisely circular, allowing for easy movement into position on the barrel of the firearm. The gas block is stronger, tighter, more durable, and more reliably stays in place than prior art gas blocks. In one embodiment, the gas block eliminates forward gas leakage from between the gas block and barrel. The gas block is interchangeable with standard prior art gas blocks commonly found on barrels of existing AR-platform firearms. The gas block is also compatible with low profile and MLOK handguards for AR-platform firearms.
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公开(公告)号：US20220221238A1
公开(公告)日：2022-07-14
申请号：US17690934
申请日：2022-03-09
申请人： AXTS INC
发明人： Anibal SALINAS
IPC分类号： F41A5/28
摘要： A gas block assembly may include a gas block including a gas port to receive gas provided by a gas port of a barrel; a tapered fastener opening; and a tapered fastener insertable in the tapered fastener opening, the tapered fastener including: a length further including a tapered section to contact a sidewall that defines the tapered fastener opening; and means for rotationally driving the tapered fastener into the tapered fastener opening. In other embodiments, an adjustable gas block includes sealing ring(s) on a groove in a rotationally actuated gas metering shaft.
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