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특허 상세정보

Top-entry check valve

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-043/00   
미국특허분류(USC) 137/315 ; 137/4545 ; 137/527 ; 251/298
출원번호 US-0605051 (1984-04-30)
발명자 / 주소
인용정보 피인용 횟수 : 15  인용 특허 : 8

A check valve having a removable seat portion with integral flapper (valving means) is disclosed. The seat portion can be removed through a port in the valve body without breaking any connection of the valve body to the associated fluid flow lines. The seat portion can comprise two sections that secure between them sealing means (e.g., an O-ring) for creating a fluid tight seal when the valving member of the check valve is closed against the seat portion. A fluid tight seal is created between the valve seat portion and valve body by tapers on the valve s...


A removable valve seat for a check valve that has a pivotably mounted valving member movable between open and closed positions, the check valve comprising a check valve body and a valve seat having a first section and a second section, which sections are separable from one another and from the check valve body but which sections are normally attached to one another and to the check valve body, the check valve body and each section having a bore for the flow of fluid therethrough; a portion of the first section normally being next to a portion of the chec...

이 특허를 인용한 특허 피인용횟수: 15

  1. Henwood Gerard S.. Angle entry rotary valve. USP1999085941266.
  2. Douglas H. Powell. Backflow prevention apparatus. USP2002096443181.
  3. Young Randy E.. Bi-directional cleanout with backflow preventer. USP2001036199576.
  4. Small Dorsey D. ; Traver Martin J. ; Young David S. ; Clark G. Todd ; Schwan Robert Joe. Casing construction for fuel dispensing systems. USP2001056223765.
  5. Teumer Henry E. (5308 Woodline Dr. South Mobile AL 36609). Check valve. USP1986084605041.
  6. Martin James F. ; Fleury Leo W. ; Fuchs Gregory. Check valve and backflow preventer. USP1999095947152.
  7. Martin James F. ; Fleury Leo W. ; Fuchs Gregory. Check valve and backflow preventer. USP1998015709240.
  8. Powell Douglas H. (Sacramento CA). Check valve assembly and method for mounting and installing check valves within a housing. USP1996125584315.
  9. Agadi, Harish; Randle, Lee; James, Michael J.; Wright, Mark. Clack valve assembly. USP2017039599241.
  10. Chaney David A. (Tulsa OK) Wallen Mark (Tulsa OK). Double containment fitting. USP1997045615700.
  11. Parr, William Edgar; Guzman, Joseph; Lieberman, Eric Andrew. Exhaust valve and method of manufacture therefore. USP2017079713693.
  12. Bagge, William J.. Flapper relief valve. USP2016039279511.
  13. Gebhardt, Markus; Kalb, Helmut; Strauss, G?nter; Kirchdorfer, Stefan; Theuer, Thomas. Level limit valve. USP2005046874529.
  14. Gerceker, Metin. Shut-off device for pipelines. USP2016109464726.
  15. James Edward Kellogg AU. Valve assembly for swimming pool cleaning systems. USP2002056393628.