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특허 상세정보

Check valve and filter assembly incorporating such valve, especially for water cooler assemblies

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-024/04   
미국특허분류(USC) 137/202; 137/550; 222/189.09
출원번호 US-0890783 (2004-07-14)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Brinks Hofer Gilson &
인용정보 피인용 횟수 : 1  인용 특허 : 15
초록

A normally open check valve, incorporating a bell-shaped check valve member, and filter assembly incorporating same, wherein the specific gravity of the bell shaped member volume as defined by the throat, and exterior wall of the bell shaped member is less than one, and the bell shaped member is disposed adjacent a valve seat in a chamber with the throat opening thereof generally facing a liquid source, among other things. The low specific gravity for the bell shaped member volume may be attained by way of example, by the bell shaped member interior capt...

대표
청구항

1. A normally open check valve for passing gas in a first direction, from an upstream side of the valve to a downstream side of the valve, and for passing gas in a reverse direction to the first direction, and for preventing liquid flow in the first direction, comprising:a) a body member having a chamber with at least one side wall, an upstream and a downstream opening, the side wall including a tubular side wall portion having a diameter narrowing to at least a contact diameter as the chamber side wall extends upstream; b) a bell shaped member with a po...

이 특허에 인용된 특허 (15)

  1. McClaran Mark R. (Orange CA). Air and vacuum relief valve. USP1988054742843.
  2. Burrows Bruce D. (Valencia CA) Busick Louis M. (Columbus OH). Bottled water station with removable reservoir. USP1994035297700.
  3. Ruschke Ricky R. (McHenry IL). Diaphragm-type center flow check valve. USP1990104966199.
  4. Busick Louis M.. Float valve assembly for a water purification system. USP2000056062255.
  5. Busick Louis M. ; Gerig Galen L.. Float valve assembly for a water purification system. USP2000076089258.
  6. Donselman Edward H. (Freeport IL) Burnham Lowell C. (Freeport IL). Liquid dispenser with readily removable reservoir and adaptor permitting use with various dispensers. USP1997095667103.
  7. Donselman Edward H. ; Burnham Lowell C.. Liquid dispenser with readily removable reservoir and adaptor permitting use with various dispensers. USP1999065911341.
  8. Donselman Edward H. ; Burnham Lowell C. ; Sloan Scott E. ; Suchanek Steve. Liquid dispensing device and hygienic adapter. USP2000026029860.
  9. Donselman Edward H. ; Burnham Lowell C. ; Sloan Scott E. ; Suchanek Steve. Liquid dispensing device and hygienic adapter therefor. USP2000096123232.
  10. Busick Louis M. ; Chaney David B. ; Hydak Kenneth J.. Mounting adapter and related bottle cap for a bottled water cooler. USP2001016167921.
  11. Curving ; III John (324 Peal Ct. Roswell GA 30076). Overflow and isolation valve. USP1997115682917.
  12. Busick Louis M. ; Fortner Brian R. ; Kopczewski Michael T.. Reservoir and faucet assembly for a water cooler. USP1999075927557.
  13. Busick Louis M. ; Burrows Bruce D.. Thermoelectric water cooler. USP1999126003318.
  14. Busick Louis M. ; Burrows Bruce D.. Water cooler with improved thermoelectric chiller system. USP2000096119462.
  15. Beyer Philip R. (Lake Carroll IL) Donselman Edward H. (Freeport IL) Wells Richard Gordon (Clinton IA). Water dispensing feed tube with improved flow. USP1997105676278.