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특허 상세정보

Sanitary check valve

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-015/02   
미국특허분류(USC) 137/515.7; 137/859
출원번호 US-0860252 (2004-06-03)
등록번호 US-7287545 (2007-10-30)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 16  인용 특허 : 14
초록

A check valve adapted for mounting between any flanges and specifically between sanitary flanges in a piping system, the check valve comprising a stationary portion and a flexible portion; the single-piece rigid stationary portion including and supporting a valve seat; the single-piece molded elastomeric flexible portion including a flange gasket, a valve plug, flexible retaining arms for guiding and securing the valve plug movement with respect to the valve seat, and a visual means to indicate that the check valve is installed, permits flow in the desir...

대표
청구항

The invention claimed is: 1. A check valve device for mounting in process piping systems which allows fluid flow in an upstream-to-downstream direction and prevents fluid flow in the opposite downstream-to-upstream direction, the valve device comprising: a rigid plate including an outer circumferential edge, an upstream face, a downstream face, and a port through said plate extended between said faces; and a body including a gasket, a plug, and a retaining means flexibly interconnecting between said gasket and said plug, said gasket being adapted to sea...

이 특허에 인용된 특허 (14)

  1. Messick DeLaun T. ; Novak Mark A.. Check valve. USP2000116152171.
  2. Messick DeLaun T. ; Novak Mark A.. Check valve. USP2000036039073.
  3. Skoli Sigmund P. (Elmwood Park IL). Check valve. USP1979044148338.
  4. Madrid Ronn G. (Durabla Pump Components ; Inc. ; 2632 Faudree Rd. Odessa TX 79765). Check valve for meter run. USP1997095664602.
  5. Robinson Barry S. (Williamsburg VA) Bennett Jan L. (Newport News VA) Vannoy Christopher T. (Williamsburg VA). Flow through pressure regulator. USP1996045509444.
  6. Hutchins Bruce E. (Milford MI). Hydraulic mount having a flexible decoupler with an orifice therethrough. USP1988084762309.
  7. Schram Henk (Zuideinde 161 NL-1551 EE Westzaan NLX). Inflatable body with a valve. USP1992065121840.
  8. Bailey James C. (Yellow Springs OH) Boehmer Dennis A. (Xenia OH) Atkinson Gordon E. (Cedarville OH). Low pressure check valve for artificial respiration devices. USP1992045103854.
  9. Myers Jan W. M. (Venlo NLX). Nonreturn valve for medical fluid technologies. USP1997045617897.
  10. Clougherty, Kenan J.; Westphal, Teddy M.. Overpressure relief valve for packaging container. USP2003126662827.
  11. Pelmulder John P. (Chatsworth CA) Gorton Lanny A. (Sunland CA) Guleserian Armen J. (Simi Valley CA) Livingston John H. (Santa Monica CA). Precision passive flat-top valve for medication infusion system. USP1987124712583.
  12. Briel Adriaan Z. A. (15 Curtis St. Rynfield ; Benoni ; Transvaal Province ZAX) Charnock John (9 Park La. ; 34 Park St. Benoni ; Transvaal Province ZAX). Reflux valve. USP1980014182355.
  13. Horton Richard (Des Moines IA) Messick DeLaun T. (Des Moines IA) Jensen Thomas A. (Boone IA). Valve and pipe coupling assembly. USP1991075033503.
  14. Masuda, Masatoshi. Valve mechanism for tube-type fluid container. USP2005116968976.