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특허 상세정보

Insert check valve or the like

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-043/00   
미국특허분류(USC) 137/315 ; 137/4542 ; 137/5121 ; 137/515
출원번호 US-0027846 (1979-04-06)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 15  인용 특허 : 3

The invention contemplates a particular body construction and assembly for a check valve or the like whereby the entire valve assembly may be readily installed as a unit within the bore of standard pipe or conduit, or a standard fitting therefor. A single circumferentially extending radially inwardly open groove in the bore of the pipe, conduit or fitting, faces a corresponding radially outwardly open groove in the valve body, and stiffly compliant circumferentially extensive retainer element such as a wire of suitable gage substantially fills these groo...


In combination, first means of conducting fluid flow and including a circular bore at an open end thereof, said bore having a circumferentially continuous annular groove therein at a location axially offset from said open end, and an insert valve removably seated in said bore; said insert valve comprising an annular body with a cylindrical outer surface sized for support in said bore in axial overlap with said groove, an externally open circumferential groove in said body and having sectional proportions substantially matching but radially opposed to tho...

이 특허를 인용한 특허 피인용횟수: 15

  1. Gabor Ujvari AU. Anti-backdraft shutter assembly for an axial flow fan. USP2002096454247.
  2. Osowski Frank (R.R. #2 ; Box 150 Oslo MN 56744). Automatic culvert directional flow control device. USP1990074942898.
  3. Marx Howard B. (Chagrin Falls OH). Bi-petal l check-valve construction. USP1989094867199.
  4. Pysh Wasyl A. (620 W. Sixth St. Erie PA 16507). Check valve. USP1990014896695.
  5. Cunningham, Michael James. Check valve arrangement. USP2003036530395.
  6. Scaramucci John P. (10724 Woodridden Oklahoma City OK 73170). Check valve seat and cage retainer. USP1988114782855.
  7. Sharp Donald L. (Conneaut OH). Check valve with relief-valve feature. USP1984074457333.
  8. Glover, Donald S.; Scanlon, James; Michael, Klein; Koeroghlian, Mark. Excess flow valve with magnet. USP2005086923206.
  9. Nabben, Marvin. Exhaust fan and anti-backdraft shutter assembly. USP1983054385552.
  10. Denike, Stuart K.; Jira, Joseph J.; McGonigle, Gerald S.; Warriner, Jeremiah J.. Flapper with insert stops for check valve. USP2010087779859.
  11. Rolling, James A.. Fuel drip prevention method. USP2004116810920.
  12. Alonso Manuel T. (Newport Beach CA). Heart valve prosthesis. USP1987074680031.
  13. Culpepper, Charles B.. Helical longitudinal blade turbine system including a funnel throat valve comprising a plurality of semi-circular valve plates. USP20190210197038.
  14. Klein, Gerald A.. Reinforced elastomeric hinge check valve. USP2012068201576.
  15. Goodwin Richard S. (Stoke-On-Trent GB2). Wafer check valves. USP1987094694853.