[특허]Delayed release cartridge for a firearm

[미국특허] Delayed release cartridge for a firearm 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F42B-005/67 F42B-005/30
출원번호	US-0734461 (1996-10-17)
발명자 / 주소	Koon Homer
출원인 / 주소	Sigma Research, Inc.
대리인 / 주소	Howison
인용정보	피인용 횟수 : 28 인용 특허 : 0

초록 ▼

A cartridge is disclosed for use in a ballistic weapon system. The cartridge includes a tubular case and a ballistic projectile. The projectile has an annular groove which extends into an exterior periphery of the projectile. The tubular case has a cylindrical sidewall and a substantially closed rearward end. The cylindrical sidewall defines an interior cavity for receiving at least a rearward portion of the projectile. An annular lug is integrally formed with the cylindrical sidewall and inwardly extends from the sidewall into the annular groove of the projectile, interlocking the projectile and the tubular case. Longitudinal slits are formed in the forward end of the tubular case to allow the case to expand for receipt of the projectile until the annular lug is aligned with and then inserted into the annular groove of the projectile. After the cartridge is fired, the annular lug restrains the projectile within the tubular cartridge case until combustion of the charge causes a rapid pressure buildup to exceed a predetermined pressure, which causes the predetermined shear strength of the annular lug to be exceeded. The annular lug then shears and the projectile moves forward from within the tubular case.

대표청구항 ▼

[ What is claimed is:] [1.] A cartridge for use in a ballistic weapon system, comprising:a projectile having an exterior periphery and two annular recesses which are spaced apart and formed into said exterior periphery;a tubular case having a one-piece plastic body which includes an interior cavity defined by at least one sidewall and a substantially enclosed rearward end;said one piece plastic body including two annular retaining members which inwardly extend from said sidewall of said tubular case into said recesses of said projectile, interlocking said projectile and said tubular case;wherein said projectile extends into said interior cavity of said tubular case, such that said recesses formed into said exterior periphery of said projectile are aligned with corresponding ones of said retaining members and said retaining members extend into respective ones of said recesses to interlock said projectile to said tubular case;said sidewall of said tubular case including at least one slot which extends rearward from a forward end of said tubular case and rearward of said two retaining members for allowing said forward end of said tubular case to expand and receive said projectile, and then to return to a closed position such that said retaining members extend into said recesses to interlock said projectile to said tubular case; andsaid retaining members together having a predetermined shear strength for interlocking said projectile within said tubular case until said shear strength is exceeded and said retaining member is sheared in response to a predetermined pressure buildup within said tubular case when said cartridge is fired.

이 특허를 인용한 특허 (28) 인용/피인용 타임라인 분석

Padgett, Charles, Adhesive lip for a high strength polymer-based cartridge casing and manufacturing method.
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Padgett, Charles; Wiley, Sy, Base insert for polymer ammunition cartridges.
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Padgett, Charles; Wiley, Sy, Base insert for polymer ammunition cartridges.
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Klein, Thomas R.; Wiley, Sy, Cartridge base and plastic cartridge case assembly for ammunition cartridge.
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Wiley,Sy; Rembert, III,William E.; Loftin,Gary, Composite polymer based cartridge case having an overmolded metal cup, polymer plug base assembly.
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Alford,Sidney C., Device for the disruption of explosive ordnance.
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Padgett, Charles, Frangible portion for a high strength polymer-based cartridge casing and manufacturing method.
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Padgett, Charles, High strength polymer-based cartridge casing and manufacturing method.
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Fritz, Randy R., Hollow slug and casing.
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Wiley,Sy; Rembert, III,William E., Lead free, composite polymer based bullet and method of manufacturing.
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Kley, Victor B., Molded plastic cartridge with extended flash tube, sub-sonic cartridges, and user identification for firearms and site sensing fire control.
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Kley, Victor B., Molded plastic cartridge with extended flash tube, sub-sonic cartridges, and user identification for firearms and site sensing fire control.
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Peterson, Sr., Bryan P.; Goodlin, Drew L.; Carlson, Erik K.; Head, Lawrence P.; Swenson, John W.; Jones, Sharon, Muzzleloader systems.
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Padgett, Tony, Narrowing high strength polymer-based cartridge casing for blank and subsonic ammunition.
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Padgett, Tony, Narrowing high strength polymer-based cartridge casing for blank and subsonic ammunition.
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Padgett, Tony, Narrowing high strength polymer-based cartridge casing for blank and subsonic ammunition.
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Padgett, Tony, Narrowing high strength polymer-based cartridge for blank and subsonic ammunition.
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Daniau, Emeric, Neckless cartridge.
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Padgett, Charles; Padgett, Robert Lanse, Polymer-based machine gun belt links and cartridge casings and manufacturing method.
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Padgett, Charles; Padgett, Robert Lanse, Polymer-based machine gun belt links and cartridge casings and manufacturing method.
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Pfersmann, Axel; Eckel, Alfred, Propellant charge.
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Padgett, Charles, Radiused insert.
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Padgett, Charles, Radiused insert.
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DeJong, William E., Shotshell type ammunition usable in magazine-fed firearms, and methods of manufacturing such shotshell type ammunition.
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DeJong, William E., Shotshell type ammunition usable in magazine-fed firearms, and methods of manufacturing such shotshell type ammunition.
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DeJong, William E., Shotshell type ammunition, firearms for firing such shotshell type ammunition, and methods of manufacturing such shotshell type ammunition.
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Kley, Victor B., User identification for weapons and site sensing fire control.
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Padgett, Charles, Variable inside shoulder polymer cartridge.
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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] Delayed release cartridge for a firearm 원문보기