[특허]Adjustable seat for butterfly valves

Adjustable seat for butterfly valves 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-001/22
출원번호	US-0321994 (1973-01-08)
발명자 / 주소	Hilsheimer George W. (P.O. Box 1647 Tulsa OK 74101)
인용정보	피인용 횟수 : 21 인용 특허 : 0

초록 ▼

An adjustable seat for butterfly valves wherein an annular groove is provided in the valve body for receiving an annular sealing member against one sidewall thereof for sealingly engaging the valve closure member in the closed position of the valve. A plurality of circumferentially spaced inwardly directed lugs are provided on the valve body conterminous with the groove and spaced from the sidewall thereof. A plurality of arcuate seal retainer members are disposed in the groove and interposed between the lugs and the sealing member for retaining the sealing member in a sealing position within the groove. Adjustment members are provided on each lug for selective adjustment of the pressure of the arcuate segments against the sealing member for adjusting the sealing pressure of the sealing member.

대표청구항 ▼

A valve seat for a butterfly valve having a valve body and a valve disc rotatable to alternate open and closed positions, comprising a first annular groove provided in the valve body in substantial alignment with the closed position of the valve disc, a resilient valve seat disposed within said annular groove and having the outer periphery thereof in sealing engagement with the groove and the inner periphery thereof in in sealing engagement with the outer periphery of the valve disc in the closed position thereof, said valve seat being provided with oppositely disposed annular recesses, one sidewall of said annular groove being provided with recess means complementary to the recess means of the valve seat disposed adjacent thereto, a second annular groove provided in the valve body and in open communication with the first annular groove, inwardly directed flange means provided on the body conterminous with the second annular groove and spaced from the first annular groove, a plurality of arcuate retaining segments disposed in end to end relation within said second annular groove between the flange means and valve seat means, said arcuate retaining segments being provided with longitudinally extending ridge means along one side thereof of a configuration complementary to the recess of the valve seat disposed thereagainst, a longitudinally extending curved sidewall provided on each retaining segment conterminous with the ridge and engagable with the second annular groove whereby said retaining segments are pivotally disposed therein, projection means provided on each retaining segment oppositely disposed with respect to the curved sidewall, and adjusting means provided on said lug means and engagable with the projection means for selectively rocking the retaining segments in a direction toward the valve seat, said ridge of each retaining segment cooperating with the recess of the sidewall of the first annular groove for selectively adjusting the sealing pressure of the valve seat against the outer periphery of the valve disc upon rocking of the segments by said adjusting means.

이 특허를 인용한 특허 (21)

Hartman Thomas A. ; Hartman Brian T., Apparatus and method of sealing a valve against increasing fluid pressure.
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Pupillo Andrew (Westerly RI) Babcock Jon A. (Westerly RI), Assembly and method for installing and retaining valve seals.
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Schieferstein Robert J. (Reading PA) Kilayko Enrique L. (Weston MA), Ball check valve.
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Hartman, Thomas A.; Hartman, Brian T., Ball valve housing seat and method of securing the same to a ball valve.
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Lynch C. Thomas (Berkeley CA), Butterfly valve structure.
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Stefani, Yves; Lucotte, Roland, Butterfly valve with a rigid seal.
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Stefani, Yves; Lucotte, Roland, Butterfly valve with a rigid seal.
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Dyer, Robert J.; Myerley, Thomas S.; Miller, Wade A.; Presley, Matthew P.; Hair, Michael L., Curved flapper seal with stepped intermediate surface.
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Maxwell Ronald K., Damper valve having an adjustable seat.
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Scobie William B. (Houston TX) Wagberg Michael L. (Houston TX), Disk/stem connection apparatus for butterfly valve.
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Stefani, Yves; Lucotte, Roland, Pipe coupling.
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Cunningham John P. (Narragansett RI) Szilagyi Dezso (Cranston RI), Replaceable adjustable butterfly valve seat.
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Laulhe Ren (Oloron Sainte Marie FRX) Garrigues Jean-Claude (Ogeu les Bains FRX), Sealing device providing the upstream/downstream sealing of a valve.
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Bernat ; Georg (Narre Warren AUX), Sealing washer for taps.
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Baumann, Paul Smit; Francis, Daniel, Solids-handling equipment.
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Kepler James L. (York PA), Spherical valve seal piston detecting and locking arrangement.
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Riley Donald E. (Farmington MI) Graham Kenneth A. (Birmingham MI) Scott Ian J. C. (Madison Heights MI) Ogden S. Duane (Royal Oak MI), Throttle body assembly.
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Ossenbruegge Jan-Peter,DEX ; Hiddessen Ralf,DEX, Valve.
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Hartman,Brian T.; Hartman,Thomas A., Valve seal and method of installing a valve seal.
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Hartman,Brian T.; Hartman,Thomas A., Valve seal and method of installing a valve seal.
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Blenkush, Robert A.; Watterodt, Sidney, Wear ring retainer for a gate valve.
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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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연합인증

Adjustable seat for butterfly valves 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (21)

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Adjustable seat for butterfly valves 원문보기

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연구과제 타임라인

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이 특허를 인용한 특허 (21)

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