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특허 상세정보

Backflow valve mounting and sealing device

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-015/03   
미국특허분류(USC) 137/527 ; 137/5278
출원번호 US-0621754 (1975-10-14)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 17  인용 특허 : 0
초록

A resilient elastomer mounting and sealing device for a backflow valve. The backflow valve is positioned within a pipe fitting and includes a flapper element. The device serves to support the valve within the pipe fitting while sealing the valve relative to the pipe fitting and additionally provides a seat for the flapper element of the valve.

대표
청구항

A mounting and sealing device for supporting a backflow valve in a pipe fitting, said backflow valve having a cylindrical mounting portion telescopically received within said pipe fitting, with one end of said cylindrical mounting portion serving as a valve seat for a flapper element that is carried by said one end of said mounting portion, and the pipe fitting being formed with circumferential grooves, said mounting and sealing device being of resilient material and comprising: an annular main body that telescopically encompasses the exterior surface of...

이 특허를 인용한 특허 피인용횟수: 17

  1. Chen, Chao Chi; Chiang, Michael. Air admittance valve preventing mephitis overflow. USP2018019863546.
  2. Nichols, H. Brunson. Anti-backflow insert for a fire hydrant outlet. USP2012118302623.
  3. Engelmann Lester. Backflow prevention assembly. USP2001026192933.
  4. Engelmann Lester. Backflow prevention assembly. USP2001096293013.
  5. Engelmann, Lester. Backflow prevention assembly. USP2003016502598.
  6. Jerkins Kenneth R. (1098 Kenwal Rd. Concord CA 94521). Backwater escape valve. USP1990044917147.
  7. Hull, Eric G.; Young, Dennis R.. Backwater valve assembly and method. USP20190310240333.
  8. Hull, Eric; Young, Dennis R.. Backwater valve assembly and method. USP2017029560805.
  9. Teumer Henry E. (5308 Woodline Dr. South Mobile AL 36609). Check valve. USP1986084605041.
  10. Valdez, William T.; Morrison, Timothy J.. Check valve for drain pipes. USP2013068459298.
  11. Mooney, Peter Richard; Tilley, Ian Edward. Non-return valve. USP2014108869823.
  12. Kirk, Lyn. Non-return valve assembly of the pivoting flap type, typically for insertion in floor drains. USP2015059038660.
  13. Watts Leon B.,CAX. Sewer inspection chamber with back-flow prevention valve. USP2000026029684.
  14. Watts Leon B.,CAX. Sewer inspection chamber with back-flow prevention valve and method and apparatus for installing valve in sewer inspection chamber. USP2000106125878.
  15. Gonzales Henry G. (3602 Dalraida Dr. Corpus Christi TX 78414) Gonzales Joe H. (3038 Quail Springs B1 Corpus Christi TX 78414). Sewer line relief valve. USP1991075031659.
  16. Thomas Mark W. (472 Lotus La. Mt. View CA 94043). Universal check valve assembly. USP1982024313456.
  17. Zarlengo Dominic A. (3025 W. Scott Pl. Denver CO 80211). Water saving device for toilet. USP1979124178644.