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특허 상세정보

Flowline flapper valve

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-015/02   
미국특허분류(USC) 137/527.2; 251/363
출원번호 US-0763786 (2010-04-20)
등록번호 US-8261771 (2012-09-11)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Bracewell & Giuliani LLP
인용정보 피인용 횟수 : 17  인용 특허 : 12
초록

A check valve assembly has a body having a central cavity intersected by upstream and downstream flow passages. A seat is secured by a threaded engagement in the upstream flow passage. An access bore intersects the cavity and has a support shoulder formed in it. A holder is supported on the support shoulder. A flapper is pivotally secured to the holder and located in the cavity for movement between an open position and a closed position blocking flow through the seat. A straight edge portion in the access bore engages a straight edge portion of the holde...

대표
청구항

1. A check valve assembly, comprising: a body having a central cavity intersected by upstream and downstream flow passages, the flow passages having a common flow passage axis, the upstream passage having a couterbore that defines a downstream facing shoulder;a seat having a central orifice therethrough and secured by a threaded engagement into the upstream flow passage, a downstream side of the seat having a larger diameter than an upstream side of the seat, defining a flange having an upstream facing shoulder that is spaced apart from an upstream wall ...

이 특허를 인용한 특허 피인용횟수: 17

  1. Baca, Matthew S.; Witkowski, Brian C.. Automated relief valve control system and method. USP2018019857807.
  2. Baca, Matthew S.; Witkowski, Brian C.. Automated relief valve control system and method. USP2016039273543.
  3. Baca, Matthew S.; Witkowski, Brian C.. Automated relief valve control system and method. USP2016049322243.
  4. Scaramucci, John P.. Check valve. USP2013078490648.
  5. Fuller, Nadiya; Said, Nuder; Witkowski, Brian C.. Clapper valve. USP20190210197172.
  6. Oakner, Stuart; Oakner, Donna. Drain line access device. USP2015038967183.
  7. Witkowski, Brian; Said, Nuder. Flowline flapper valve. USP2015038978695.
  8. Arizpe, Ron; Tsuei, Lun; Long, Timothy; Hardman, Adam; Green, Matthew. Manifold assembly. USP2017029568138.
  9. Witkowski, Brian; Said, Nuder. Plug valve having preloaded seal segments. USP2015089103448.
  10. Witkowski, Brian; Said, Nuder. Plug valve having preloaded seal segments. USP2017059638337.
  11. Witkowski, Brian C.; Kotapish, Edward C.. Plug valve indicator. USP2015048998168.
  12. Witkowski, Brian; Said, Nuder. Seal assembly. USP201406D707332.
  13. Witkowski, Brian; Said, Nuder. Seal assembly. USP201507D734434.
  14. Wilkowski, Brian; Said, Nuder. Seal segment. USP201406D707797.
  15. Matzner, Mark D.; Witkowski, Brian C.. Swivel joint with uniform ball bearing requirements. USP2014108870233.
  16. Witkowski, Brian; Matzner, Mark D.. Swivel joint with uniform ball bearing requirements. USP2018059964245.
  17. Kim, Kwang Hwan; Lee, Seung Yeon; Chu, Dong Ho; Park, Ui Yeon; Jin, Kyung-Wook; Yang, Sung-Jin; Park, Jun Gwan; Lee, Gil-Beom; Jung, Kyung-Jae. Waste gate valve. USP2016069376930.