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특허 상세정보

Check valve

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-015/03   
미국특허분류(USC) 137/527 ; 137/5272 ; 137/5278 ; 251/360
출원번호 US-0579452 (1975-05-21)
발명자 / 주소
인용정보 피인용 횟수 : 23  인용 특허 : 0
초록

A check valve comprising a sectional valve body adapted to be interposed in a flow line, a valve seat provided in one body portion, a pivotal clapper member movable toward and away from said valve seat to provide alternate open and closed positions for the valve and hanger means provided in the body including means for urging the clapper toward a normal closed position against the valve seat.

대표
청구항

A check valve comprising a housing having oppositely disposed aligned inlet and outlet ports provided a fluid passageway through the housing, a sleeve member removably disposed in said housing in alignment with the inlet port and having one end extending into the interior of the housing to provide a valve seat, hanger means removably secured to the housing in the proximity of the valve seat, a bore through said hanger means, independent securing means, accessable through said bore for removably securing the valve seat to said housing, clapper means remov...

이 특허를 인용한 특허 피인용횟수: 23

  1. Hull, Eric G.; Young, Dennis R.. Backwater valve assembly and method. USP20190310240333.
  2. Hull, Eric; Young, Dennis R.. Backwater valve assembly and method. USP2017029560805.
  3. Coscarella, Gabe. Backwater valve with control linkage. USP2018019863134.
  4. Root, David H.. Breath intake valve. USP2015129216263.
  5. Root, David H.. Breath intake valve for a tracheostomy tube. USP2014088800565.
  6. Cyliax, Oliver; Winterholler, Arthur. Check valve. USP2015059027593.
  7. Pendleton Jack G. (Coffeyville KS). Check valve. USP1980094223697.
  8. Scaramucci,John P.; Lowe,Danny Ray. Check valve. USP2006127152622.
  9. Teumer Henry E. (5308 Woodline Dr. South Mobile AL 36609). Check valve. USP1986084605041.
  10. Page Robert G. (Farnham GB2) Milton John S. (Guildford GB2). Check valve and a seal for a check valve. USP1987114706706.
  11. Powell Douglas H. (Sacramento CA). Check valve assembly and method for mounting and installing check valves within a housing. USP1996125584315.
  12. Fuller, Nadiya; Said, Nuder; Witkowski, Brian C.. Clapper valve. USP20190210197172.
  13. Lin Ping ; Ackroyd Rand. Flapper check valve. USP2000046050293.
  14. Lin Ping ; Ackroyd Rand. Flapper check valve. USP1999015855224.
  15. Baker John R. (Houston TX). Fully opening flapper valve apparatus. USP1984024433702.
  16. Becker Bernard B. (Belmont MA) Bowman John K. (Brighton MA) Randall Cyril A. (Belmont MA). In line back flow preventer. USP1981084284097.
  17. Becker Bernard S. (Belmont MA) Bowman John K. (Brighton MA) Randall Cyril A. (Belmont MA). In line back flow preventer. USP1980114232704.
  18. Becker Bernard B. (Belmont MA) Bowman John K. (Brighton MA) Randall Cyril A. (Belmont MA). In-line back flow preventer. USP1983124420010.
  19. Makowan Ted J.. Position indicating check valve. USP2000116152173.
  20. Burns Ivan A. (Houston TX) Hochmuth William R. (Houston TX). Restricted movement valve seats for an expanding gate valve. USP1981014246928.
  21. Bussear, Terry R.. Rotationally-actuated flapper valve and method. USP2013048424842.
  22. Colton, Jr., G. A. Pete; Schweitzer, Richard R.. Side-mounted position indicator for flapper check valve. USP2009057533693.
  23. Teumer Henry E. (5308 Woodline Dr. S. Mobile AL 36609). Top-entry check valve. USP1985044508139.