[특허]Composite ammunition casing with forward metallic portion

[미국특허] Composite ammunition casing with forward metallic portion 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F42B-005/26
출원번호	US-0547518 (1975-02-06)
발명자 / 주소	Scanlon John J. (Monroe CT)
출원인 / 주소	Remington Arms Company, Inc. (Bridgeport CT 02)
인용정보	피인용 횟수 : 69 인용 특허 : 0

초록 ▼

A composite ammunition casing, especially for use in repeating firearms or guns in whose chambers a temperature gradient develops, from a maximum at the forward throat portion to a minimum at the rear breech portion. The casing includes a forward metallic member and a rear member formed of a material having a lower temperature resistance, such as plastic. The casing members have an interlocking junction at a point spaced along the firearm chamber at which the expected local temperature of the chamber drops to a level within the temperature resistance capability of the rear member. The interlocking junction is formed by surface interruptions in the wall of the forward member, into which the material of the rear member projects.

대표청구항 ▼

A composite ammunition casing comprising: a tubular forward casing member formed of a metallic material resistant to relatively high temperatures encountered in the forward throat portion of repeating firearm chambers, said forward casing member having a mouth portion of a first diameter for receiving a projectile in gas-sealing relation therein, and flaring rearwardly through a substantial portion of the length of the composite casing into a rear portion of a second diameter greater than said first diameter; a tubular rear casing member formed of a plastic material of lower temperature resistance than said forward casing member, having a temperature resistance of the order of polyester or polyethylene, but capable of withstanding the relatively low temperatures encountered in the rear breech portions of repeating gun chambers, said rear casing member having a forward termination in the region of said rear portion of said forward casing member, and having a rear base portion; said rear portion of said forward casing member forming a junction with said rear casing member, said forward and rear casing members abutting and being provided with interlocking gas-sealing means at said junction, said junction being located rearwardly of said mouth portion at a distance at which the gun chamber temperature to be encountered is within the temperature resistance capability of the material of said rear casing member.

이 특허를 인용한 특허 (69) 인용/피인용 타임라인 분석

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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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Padgett, Tony, Narrowing high strength polymer-based cartridge casing for blank and subsonic ammunition.
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Burrow, Lonnie, Polymer Ammunition having a three-piece primer insert.
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Burrow, Lonnie, Polymer ammunition having a three-piece primer insert.
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Burrow, Lonnie, Polymer ammunition having a three-piece primer insert.
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Burrow, Lonnie, Polymer ammunition having a two-piece primer insert.
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Maljkovic, Nikica; Carter, Roy L.; Thomas, David B.; Myrick, Leslie J.; Rushing, Todd S., Polyphenylene-poly(aryl ether sulfone) blends, articles and method.
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Burrow, Lonnie, Three-piece primer insert having an internal diffuser for polymer ammunition.
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Burrow, Lonnie, Three-piece primer insert having an internal diffuser for polymer ammunition.
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Burrow, Lonnie, Two-piece primer insert for polymer ammunition.
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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] Composite ammunition casing with forward metallic portion 원문보기