[특허]Gas-operated rifle system

[미국특허] Gas-operated rifle system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F41A-005/26 F41A-015/16
출원번호	US-0938005 (1992-08-28)
발명자 / 주소	Schuetz Robert C. E. (Olympia WA)
출원인 / 주소	Olympic Arms, Inc. (Olympia WA 02)
인용정보	피인용 횟수 : 108 인용 특허 : 0

초록 ▼

An M16 type rifle is disclosed having a gas piston assembly with a relatively large piston area and sufficient stroke to actuate the M16 bolt carrier assembly in order to allow the M16 rifle to be chambered for short low-pressure pistol cartridges such as the 45 ACP, 10 mm, and 40 S&W. The gas piston assembly provides relatively constant contact between the piston rod and the gas carrier key of the conventional M16 bolt carrier assembly.

대표청구항 ▼

In an improved M16 rifle having a magazine housing; a trigger and hammer assembly; a handgrip; a buffer assembly; a buttstock assembly; an upper receiver connected to the lower receiver; a barrel attached to said upper receiver and having a rifled bore connected to a cartridge chamber; a breech chamber connected to the cartridge chamber and having a plurality of locking lugs formed therein; a gas port formed in said barrel passing through the wall thereof to said bore; a bolt assembly slidably located in the upper receiver in a forwardly biased relationship by the buffer assembly, axially aligned with the barrel and having a lugged end for close-fitting, locking engagement in the breech chamber; a firing pin slidably located in said bolt and arranged to be activated by the hammer and trigger assembly to fire a cartridge located in the chamber; an ejector assembly located in said rifle arranged to eject cartridges from said bolt assembly upon rearward movement of said bolt; and a gas piston/cylinder assembly mounted on said barrel, having a gas passage communicating with the gas port in the barrel, and a piston mounted on a piston rod and located in a snug-fitting slidable relationship in the gas cylinder, said piston rod extending out of said gas cylinder into the upper receiver in engaging relationship with the bolt assembly; the improvement comprising: said cartridge chamber receiving therein a pistol-caliber cartridge; said gas port being enlarged to a diameter of from 0.180 inch to 0.250 inch in order to allow sufficient gas volume to pass from said rifle bore to said cylinder to move said piston and bolt assembly enough to eject a fired cartridge from said cartridge chamber; and, wherein said ejector assembly comprises a transverse rod extending across the inside of said upper receiver and a concentric biasing spring on said rod and having a projecting end extending forward of said rod into an ejector groove formed in said bolt and arranged to contact a cartridge face when said bolt is moved rearwardly in said upper receiver.

이 특허를 인용한 특허 (108) 인용/피인용 타임라인 분석

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Herring, Geoffrey A., Apparatus and method for actuating a bolt carrier group of a receiver assembly.
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Kramer, Lawrence S., Cartridges and modifications for M16/AR15 rifle.
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Adams, Jason, Direct drive retrofit for rifles.
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Casull Richard J., Extractor and system for extracting a cartridge from a firearm.
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Lewis, Karl R.; Bargren, James Arend Seabold; Schafer, Jacob A.; Hohl, Neal David, Firearm assembly with upper receiver incorporating an integral upper rail.
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Gomez, Jesus S., Firearm buffer system and buttstock assembly.
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Gomez, Jesus S., Firearm buffer system and buttstock assembly.
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Brown, Michael J., Firearm having a handle assembly for charging.
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Brown, Michael J., Firearm having a handle assembly for charging and forward assist.
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Brown, Michael J., Firearm having a handle assembly for charging and forward assist.
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Kuczynko, Grzegorz, Firearm having a removable hand guard.
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Brown, Michael J., Firearm having an expulsion device.
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Brown, Michael J., Firearm having an indirect gas impingement system.
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Brown, Michael J., Firearm having an indirect gas impingement system.
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Kuczynko, Grzegorz; Dorsey, Josh, Firearm having an indirect gas operating system.
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Brown, Michael J., Firearm including improved hand guard.
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Brown, Michael J., Firearm including improved hand guard.
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Jackson, Jason Stewart, Firearm operating rod.
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Jensen, Neil, Firearm operating system.
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Gomez, Jesus S., Firearm receiver assembly.
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Gomez, Jesus S., Firearm receiver assembly.
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Gomez, Jesus S., Firearm receiver assembly.
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Capps, John; DeSomma, Frank, Firearm trigger.
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Capps, John; DeSomma, Frank L., Firearm upper receiver.
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Tseng, Shu-Mei, Firing frequency controller.
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Kenney, Daniel E.; Ronkainen, James W.; Matteson, David O., Gas block.
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Vuksanovich, Brian; Wilkinson, Todd, Gas operated rifle with bolt carrier and receiver assembly.
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Dafinov,Vesselin, Gas operated semi-automatic rifle.
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Herring, Geoffrey A., Gas piston assembly and bolt carrier for gas-operated firearms.
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Griffin, Ritchie, Gas piston retrofit for rifle.
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Kramer, Lawrence S., Gas piston system for M16/AR15 rifle or M4 carbine systems.
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Kenney, Daniel E.; Ronkainen, James W.; Matteson, David O., Gas plug retention and removal device.
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Stone, Jeffrey W., Gas vent for firearm.
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Stone, Jeffrey W., Gas vent for firearm.
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Spence, Jeffery D., Gas venting system for firearms.
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Molinari, Gian Mario, Gas-operated firearm.
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Molinari, Gian Mario, Gas-operated firearm.
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Brown, Michael J., Hand guard mounting mechanism.
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Brown, Michael J., Handle assembly for charging a direct gas impingement firearm.
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Dubreuil, Ronald, Hinged hand guard.
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Dubois, Jason R., Lightweight, low cost semi-automatic rifle.
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Brown, Michael J., Magazine repair system for firearm.
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Shoffner, Mitchel W.; Grange, David L.; Haner, William B., Modified rifle lower receiver, related components, cartridges, and methods.
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Robinson Alexander J. ; Nebeker Darin G., Modular, multi-caliber weapon system.
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Lewis, Karl R.; Bargren, James Arend Seabold; Schafer, Jacob A.; Hohl, Neal David, Monolithic rail platform and bolt assemblies for a firearm.
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Lewis, Karl R.; Bargren, James Arend Seabold; Schafer, Jacob A.; Hohl, Neal David, Monolithic rail platform and bolt assemblies for a firearm.
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Windauer, Bernard T., Pressure-regulating gas block.
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Steimke, David; Rossier, Glenn; Hayes, Larry; Parker, Douglas, Quick release barrel attaching and detaching mechanism.
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DeSomma, Frank L., Reduced weight firearm.
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Olson, Clifford W., Repeating cone-breech firearm system.
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Stone, Jeffrey W., Replaceable feed ramp.
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Stone, Jeffrey W., Replaceable feed ramp.
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Davies, Robert B., Rifle.
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Davies, Robert B., Rifle.
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Olson, Clifford W., Semi-automatic cartridge feeding system.
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Steimke, David; Rossier, Glenn; Hayes, Larry; Parker, Douglas, Short recoil impulse averaging weapon system.
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Jackson, Jason Stewart, Sleeve piston for actuating a firearm bolt carrier.
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Olson, Clifford W., Wide-flanged cartridge extractor.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Gas-operated rifle system 원문보기