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특허 상세정보

Fuel drip prevention method

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B65B-001/04    B65B-003/04   
미국특허분류(USC) 141/001; 141/206; 141/311.A; 141/392; 222/110; 137/527
출원번호 US-0658636 (2003-09-08)
발명자 / 주소
대리인 / 주소
    Santangelo Law Offices, P.C.
인용정보 피인용 횟수 : 4  인용 특허 : 23

The novel use of a one-way valve ( 13 ) to prevent drips of fluid such as fuel from a fluid delivery conduit after an intended flow shut-off is disclosed. At least one embodiment involves the use of a biased, one way valve that is reconfigurably responsive to a fluid flow shut-off pressure to prevent flow (e.g., drips, drops and/or a fluid stream) after an intended shut-off of fluid flow via closing of a main valve element ( 5 ). The biased, one-way valve ( 13 ) may itself comprise at least one fluid obstruction element that is rotatable about and attach...


1. A fuel pump nozzle drip prevention method comprising the steps of:adapting a fuel conduit of a fuel pump nozzle:to create an adapted fuel conduit; andto establish a fuel drip prevention valve element within said adapted fuel conduit at a position downflow of a main valve element and towards a fuel source distal, terminal end of said adapted fuel conduit,wherein said fuel drip prevention valve element is responsive to a fuel delivery shut-off condition and reconfigures upon fuel delivery shut-off of said main valve element so as to substantially obstru...

이 특허에 인용된 특허 (23)

  1. DeFrees Joseph H. (Warren PA). Air check valve assembly for powdered bulk product transport. USP1984054445533.
  2. Mitchell H. Charles (7525 Oakhill Ave. Wauwatosa WI 53213) Fettes Donald G. (66 Rawlinson Place Regina ; Saskachewan CA). Backflow check valve. USP1977124063570.
  3. Kajita Yoshio (Tokyo JA). Check valve. USP1976013933173.
  4. Reep Alan J. (Box 111 Stanley ND 58784). Check valve device for a fuel pump nozzle. USP1995015377729.
  5. Schertler William E. (R.R. 1 Red Level AL 36474). Check valve with removable seat. USP1980054201241.
  6. Schutzer Gerhard (Stuhr DEX). Flap valve. USP1980044196745.
  7. Sliski Chester (Trenton NJ). Flapper check valve. USP1977084043358.
  8. Buckner Spencer P. (Houston TX). Flapper valve with independent plate suspension. USP1976063965926.
  9. Buckner Spencer P. (Houston TX). Flapper valve with independent spring action. USP1977024005732.
  10. Buckner Spencer P. (Houston TX). Flapper valve with independent spring action. USP198103RE30532.
  11. Carmack, Paul D.; Murphy, Robert D.. Fuel dispensing nozzle having a dripless spout. USP2003026520222.
  12. Nusen Andreas Jacobus Louis,NLX ; Giesen Leonardus Henricus Wilhelmus,NLX. Fuel dispensing nozzle with anti-drip valve and venturi located in downstream end of the nozzle. USP2001116311742.
  13. Dame Curtis E. (3268 Saint Anthony Dr. Portage MI 49081). Gas nozzle valve. USP1997045620032.
  14. Ogle ; Jr. Francis H. (Chardon OH) Koppl Ernest R. (South Euclid OH). Insert check valve or the like. USP1981034257444.
  15. McDonald Rodney R. (Ithaca MI). Method and assembly for preventing dripping of a liquid dispensing nozzle. USP1997075645116.
  16. Hoffman Allan C. (5876 Republic St. Riverside CA 92504). Normally closed duckbill valve and method of manufacture. USP1985064524805.
  17. Herlihy Geoffrey F. (Perth AUX). One way valve. USP1994025285816.
  18. Cooper James N. (Huddersfield GB2) Harrop Nicholas J. (Rotherham GB2). Plates for wafer check valves. USP1995025392810.
  19. Kerssies Geert (Vianen NLX). Spout for a fuel dispensing nozzle. USP1997025603364.
  20. Bunce Kevin R. (Baldock GB2). Valve device for controlling liquid flow. USP1991045004009.
  21. Pyle Walter R. (Richmond CA). Valve means for preventing fuel spillage from the discharge spout of a fuel dispensing nozzle. USP1980074214614.
  22. Pyle Walter R. (Richmond CA). Valve means responsive to the operation of a vapor-seal valve for preventing fuel spillage from the discharge spout of a. USP1980074213488.
  23. Goodwin Richard S. (Stoke-On-Trent GB2). Wafer check valves. USP1987094694853.