[특허]Bimetallic C-ring seal

[미국특허] Bimetallic C-ring seal 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E06B-001/00 F16J-015/12 F16K-017/40 F16K-043/00
출원번호	US-0753272 (1985-07-09)
발명자 / 주소	McCrone James A. (Columbia SC)
출원인 / 주소	The Fluorocarbon Company (Los Alamitos CA 02)
인용정보	피인용 횟수 : 58 인용 특허 : 4

초록 ▼

A self-actuating temperature sensitive seal comprised of a bimetallic C-ring. Differences in the relative rates of thermal expansivity of the inner face and the outer face of the C-ring cause the C-ring to expand or contract in response to temperature variations. Expansion of the C-ring will create a seal, and contraction of the C-ring will remove the seal between the surfaces surrounding the C-ring. The bimetallic ring may also be used in combination with a spring-biased soft seal made of a fluorocarbon polymer, such as Teflon, to form a fire-safe composite seal. In cryogenic applications, the bimetallic C-ring can provide a seal by itself, or as a biasing element within a surrounding soft jacket.

대표청구항 ▼

A seal assembly comprised of: a first seal comprised of a bimetallic tube with a slot running longitudinally along the length of said tube so as to form a substantially C-shaped cross section, said bimetallic tube being comprised of two metallic strips having differing rates of thermal expansivity and respectively forming the inner and outer surfaces of the tube, so that changes in temperature cause the differing amounts of expansion in said strips to be compensated by changes in the width of the slot, causing the tube to expand or contract; a second seal positioned adjacent the first seal in a manner to provide the primary seal with respect to adjacent surfaces housing the seal assembly during normal temperature conditions, said second seal being of soft material destructible at extreme temperatures that causes said first seal to expand or contract, a biasing member forcing a portion of said soft material into sealing engagement with the adjacent surfaces, said first seal being positioned and constructed so that the first seal does not sealingly engage the adjacent surfaces at normal operating temperatures, and in the event of an extreme variation in temperature rendering said second seal inoperative, said first seal would respond to the said temperature variation and sealingly engage said adjacent surfaces; wherein said first and second seals are perimetric when viewed from above, and said second seal includes a jacket portion which is axial of said bimetallic ring throughout its length, and a head portion which is attached to said jacket and extends through said slot in said C-shaped first seal to provide a seat for said first seal, said jacket having a pair of lips forming an annular channel; and said biasing member is lodged within the channel to provide a resilient expanding force on the lips, causing the external surfaces of the lips to sealingly engage the adjacent surfaces.

이 특허에 인용된 특허 (4) 인용/피인용 타임라인 분석

Blumenkranz James J. (Los Angeles CA) Hall Rowland G. (Burbank CA), Ball valve.
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Kacal Gary W. (Rosenberg TX) Partridge Charles C. (Houston TX), High temperature ball valve.
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Orlowski David C. (Milan IL), Sealing assembly.
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Grazioli Angal J. (Houston TX), Valve and seal therefor.
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이 특허를 인용한 특허 (58) 인용/피인용 타임라인 분석

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Graves, Charles Bryce, Bi-metal strip-seal.
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Wissmann Siegfried R. (Cincinnati OH), Carrier for bottle preforms.
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Promper,Christophe, Control valve, in particular plug valve with sealing system.
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Ricard, Philippe Ode Daniel; Avdjian, Christophe, Double piston effect lip seal seating assemblies.
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Ezekiel, Mark, Double piston trunnion mounted ball valves and methods of use.
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Bastien, Charles M., Dust seal.
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Clarkson Curtis W. (Reno NV) Koll Larry F. (Reno NV) Jennings Milton E. (Sparks NV) Williams Nicholas J. (Sparks NV), Gate valve.
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Hostetter, Steven Keith; Miller, Lisa Marie, High temperature ball valve seal.
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Dimascio, Paul Stephen; Arnett, Michael Douglas; Hefner, Rebecca Evelyn; Higgins, Christopher D., Metallic seal assembly, turbine component, and method of regulating airflow in turbo-machinery.
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Frenzel, Robert Anthony, Multi-component metal seat design for ball valves.
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Hunter, Rick C.; Kahn, Jon B.; Tanaka, Fabio Okamoto, Multi-valve seat seal assembly for a gate valve.
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Anderson,Dean; Giesler,William L.; King,Brad; Wiggins,Jimmy D., Over center high deflection pressure energizing low leakage seal.
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Anderson,Dean; Giesler,William L.; King,Brad; Wiggins,Jimmy D., Over center high deflection pressure energizing low leakage seal.
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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] Bimetallic C-ring seal 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허에 인용된 특허 (4) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (58) 인용/피인용 타임라인 분석

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[미국특허] Bimetallic C-ring seal 원문보기

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이 특허에 인용된 특허 (4) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (58) 인용/피인용 타임라인 분석

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