[특허]Valve and seal therefor

[미국특허] Valve and seal therefor 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16J-015/00 F16K-043/00 F16K-017/40
출원번호	US-0500082 (1983-06-01)
발명자 / 주소	Grazioli Angal J. (Houston TX)
출원인 / 주소	Cameron Iron Works, Inc. (Houston TX 02)
인용정보	피인용 횟수 : 17 인용 특허 : 5

초록 ▼

An ball valve having a body with an open valve chamber therein, passages into the valve chamber, an opening through the top of the body, a boss having an internal recess opposite and aligned with said opening, a closure releasably secured to said body and closing valve chamber, a ball positioned within said chamber and having a passage therethrough, an upper shaft extending through said opening and a lower shaft positioned in said boss recess, rotation of said upper shaft rotating said ball to control flow through said valve, and a sealing assembly positioned to seal against said ball and having resilient seals and metal seal rings for sealing against pressure independent of the direction of flow or pressure even after the valve has been exposed to sufficient heat to destroy the resilient seals of the sealing assembly.

대표청구항 ▼

A sealing assembly for sealing in a ball valve having a body with a valve chamber therein, a ball positioned within said valve chamber and spaced from the interior of said body and a closure, comprising a metal seat ring having an annular sealing surface for engaging the exterior surface of the ball and a groove in said annular sealing surface, a resilient seal ring in said groove, and a two-way seal ring for sealing between the exterior of the ring and the walls of the body surrounding said ring, said two-way ring including both a dual resilient seal for sealing against pressure from both directions and each of said resilient rings having a metal seal ring, said two-way seal further includes a first resilient seat ring for sealing against upstream pressure, a second resilient seal ring for sealing against downstream pressure, said first and second seal rings being disposed within an annular groove defined a shoulder within said valve body and a shoulder within said metal seat ring, a first metal seal ring embedded in said first resilient seal ring for sealing against upstream pressure when said first resilient seal ring has been destroyed, a second metal seal ring embedded in said second resilient seal ring for sealing against downstream pressure when said second resilient seal ring has been destroyed and said first and second metal seal rings being disposed on opposite sides of said first and second resilient seal rings.

이 특허에 인용된 특허 (5) 인용/피인용 타임라인 분석

Pechnyo Michael (Chicago IL) Fowler Herman H. (Kearney NE), Fire seal for valves.
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Herd David P. (Houston TX), High pressure gate valve with preloaded, stacked, solid lubricated stem seals.
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Allen Herbert (Houston TX), Lubricated valve.
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Muchow John D. (Long Beach CA), Self centering floating metal seal for a ball valve.
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Charland Raymond J. (South Windsor CT), Stem seal for a fire safe ball valve.
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이 특허를 인용한 특허 (17) 인용/피인용 타임라인 분석

Yin, Chih-Chien, Ball segment valve.
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Scott, Gordon Kenneth; Crabb, James; Taylor, Ronald George, Ball valve.
상세보기
Gutmann, Paul M.; Saldivar, John M., Ball valve stem retaining system.
상세보기
Saldivar, John M.; Gutmann, Paul M., Ball valve stem retaining system.
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Saldivar, John M.; Gutmann, Paul M., Ball valve stem retaining system.
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McCrone James A. (Columbia SC), Bimetallic C-ring seal.
상세보기
Chen, Jerome Chin Lung; Li, Michael Qiang, Double-piston-effect valve.
상세보기
Whitlow, Mark, Energized spring seal for a floating valve seat.
상세보기
Malnou, Dominique, Isolating valve.
상세보기
Hill Vincent F., Prepaid long-distance telephone service system with flexible operating parameters.
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Robinson, Cam B.; Dale, Curtis, Pressure assisted connection for a valve shaft.
상세보기
Kemp Willard E. (Houston TX), Seat assembly for ball valves.
상세보기
Mircea, Balan, Self-relieving ball valve seat.
상세보기
McMahon Timothy A. ; Kuhlman Charles R. ; Weber Larry J., Throttling control in a fluid control valve.
상세보기
Balan, Mircea; Burrows, Steven, Trunnion ball valve seat with V-section spring.
상세보기
Scaramucci, John P., Valve member for a floating ball valve.
상세보기
Maki Robert E., Valve with fire-resistant seal.
상세보기

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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] Valve and seal therefor 원문보기