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특허 상세정보

Check valve and a seal for a check valve

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-015/03    F16K-015/18    F16K-025/00   
미국특허분류(USC) 137/5278 ; 137/527 ; 251/82 ; 251/175
출원번호 US-0887044 (1986-07-18)
우선권정보 GB-0029200 (1984-11-19)
국제출원번호 PCT/GB85/00527 (1985-11-19)
§371/§102 date 19860718 (19860718)
국제공개번호 WO-8603273 (1986-06-05)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 27  인용 특허 : 16
초록

A horizontal check valve has a swinging clapper (16) eccentric with a tapered valve seat (14) and carrying a floating ring seal. There is clearance between the clapper (16) and the passage wall at the bottom so that reverse flow urges the ring seal into the taper. The clapper (16) abuts an abutment surface (15) formed by the valve body (10) around the valve seat so that the hydrostatic forces exerted on the clapper (16) by the reverse fluid flow are reacted by the abutment surface and not by the tapered seat (14).

대표
청구항

A check valve comprising a housing which forms a through passage which is to be connected into a fluid pipeline when the valve is in use, the housing including an annular valve seat which extends around the passage and tapers towards the upstream end of the passage in the context of the normal direction of flow through the passage, and an obturating member cooperable with the valve seat to close the through passage and displacable from the valve seat to allow fluid flow through the through passage, the obturating member carrying an annular seal which eff...

이 특허를 인용한 특허 피인용횟수: 27

  1. Grable, Jonathan L.; Orr, William M.. Backflow preventer. USP2010087784483.
  2. Andersen Blaine W. (Tempe AZ) Tervo John N. (Scottsdale AZ). Balanced-torque butterfly valve. USP1991045005804.
  3. Ball Larry K. (Chandler AZ) Black Joseph R. (Mesa AZ). Butterfly valve apparatus and method. USP1990114969485.
  4. Ball Larry K. (Chandler AZ) Hines Marshall U. (Scottsdale AZ). Butterfly valve apparatus and method. USP1990114967778.
  5. Ball Larry K. (Chandler AZ) Hines Marshall U. (Scottsdale AZ). Butterfly valve apparatus and method. USP1990104962783.
  6. Ball Larry K. (Chandler AZ) Hines Marshall U. (Scottsdale AZ) Miller Terry L. (Mesa AZ). Butterfly valve apparatus and method. USP1990104964431.
  7. Tervo John N. (Scottsdale AZ). Butterfly valve method and apparatus. USP1991024995414.
  8. Tervo John N. (Scottsdale) Ball Larry K. (Chandler) Hines Marshall U. (Scottsdale AZ). Butterfly valve method and apparatus. USP1991035000213.
  9. Tervo John N. (Scottsdale AZ). Butterfly valve method and apparatus employing variably positionable pivot shaft. USP1991035000212.
  10. Hines Marshall U. (Scottsdale AZ) Ball Larry K. (Chandler AZ). Butterfly valve with intra-shaft actuator means. USP1990114967997.
  11. Ball Larry K. (Chandler AZ) Hines Marshall U. (Scottsdale AZ). Butterfly-type check valve. USP1990104964422.
  12. Meyer, Allan. Centreline flow valve. USP2013108567435.
  13. Shimizu, Osamu; Hiroto, Yuji; Ikeda, Keisuke; Ogaki, Fuyuki. Check valve for vacuum sewage pipe and vacuum sewage system. USP2011108028715.
  14. Blocher, Troy E.; Grooms, John M.. Controller for vacuum sewage system. USP20180610001787.
  15. Maxwell Ronald K. (Irving TX). Diverter valve with bellows seal. USP1989044821771.
  16. Noll,Brad L.; Kock,Frank; Behnke,Clark; Valdivia,Salvador. Double check valve assembly. USP2008107434593.
  17. Ringer, Yoram. Dry pipe valve for fire protection sprinkler system. USP2010107814983.
  18. Ringer,Yoram. Dry pipe valve for fire protection sprinkler system. USP2006097104333.
  19. Ringer,Yoram. Dry pipe valve for fire protection sprinkler system. USP2008017322423.
  20. Feenstra, Shawn J.; Hoa, Vinh B.. Dry valve for sprinkler system. USP2012108281810.
  21. Jackson, Eldon D.; Hoa, Vinh B.. Fire protection control valve with rotating plug. USP2012058177189.
  22. Schwartz,Simon; Rothermel,Alexander; Maier,Fabian; Elsasser,Dirk; Gehr,Heiko; Sichler,Wolfgang; Schmitt,Harald; Schneider,Michael; Schmich,Ralf. Shut-off fitting. USP2008087406983.
  23. Matthews John,CAX ; Florence Stephen C.,CAX. Swing check valve. USP2001116314993.
  24. Matthews, John; Florence, Stephen C.; Easden, James. Swing check valve. USP2004016679290.
  25. Funderburk Robert Vernon ; Price Timothy Duane. Swing-type check valve assembly having an integrated valve seat and valve housing cover. USP1998085794655.
  26. Funderburk Robert Vernon ; Price Timothy Duane. Swing-type check valve assembly retained within a valve housing by abutting engagement with a valve cover and a port of. USP1998015711341.
  27. Rain, Mark A.. Valves including multiple seats and related assemblies and methods. USP20181110125874.