$\require{mediawiki-texvc}$
  • 검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
  • 검색연산자
검색연산자 기능 검색시 예
() 우선순위가 가장 높은 연산자 예1) (나노 (기계 | machine))
공백 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 예1) (나노 기계)
예2) 나노 장영실
| 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 예1) (줄기세포 | 면역)
예2) 줄기세포 | 장영실
! NOT 이후에 있는 검색어가 포함된 문서는 제외 예1) (황금 !백금)
예2) !image
* 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 예) semi*
"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

특허 상세정보

Fuel cap tester

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01M-003/04   
미국특허분류(USC) 730/497 ; 703/040
출원번호 US-0353562 (1999-07-14)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Hudak
인용정보 피인용 횟수 : 8  인용 특허 : 21
초록

An apparatus and a method for testing the integrity of fuel or gas caps for leaks is disclosed. A microprocessor controls the pressurization of an air reservoir which selectively allows air to pass to either the combination of the fuel cap under test and a reference orifice or to only the reference orifice and computes the ratio of the time required for the pressure within the air reservoir to drop between predetermined pressure levels for the combination of the fuel cap under test and the reference orifice versus only the reference orifice and compares ...

대표
청구항

[ We claim:] [1.]1. A method for testing fuel caps comprising the steps of:a) pressurizing an air reservoir to a predetermined first pressure;b) permitting air within said air reservoir to pass to the fuel cap under test and also through a reference orifice until a predetermined second pressure has been reached;c) actuating a timer when said second predetermined pressure has been reached;d) allowing air from said air reservoir to continue to pass to the fuel cap under test and through said reference orifice until a predetermined third pressure has been r...

이 특허에 인용된 특허 (21)

  1. Denz Helmut,DEX ; Blumenstooh Andreas,DEX ; Mallebrein George,DEX ; Konzelmann Uwe,DEX. Arrangement and method for checking the tightness of a vessel. USP1999045898103.
  2. Porcaro Vincent J. (Newington CT) Tedeschi Rinaldo (Newington CT) Greco Paul (Tucson AZ). Automated testing of vehicle fuel caps. USP1994065323640.
  3. Barbee James G. (San Antonio TX). Deposit thickness measurement. USP1988124791811.
  4. Cook John E.,CAX ; Perry Paul D.,CAX ; Terek Paul V.,CAX. Evaporative emission leak detection system. USP1998105817925.
  5. Mieczkowski Daniel ; Hasenberg Mark J. ; Becker Thomas P. ; Crass Matthew M. ; Braun Robert D. ; Gisske Edward T. ; Caldwell Donald J.. Evaporative emission tester. USP1998065763764.
  6. Kammeraad David A. (Holland MI) Chirco Peter R. (Sterling Heights MI). Evaporative emissions test apparatus and method. USP1996045507176.
  7. Harris Robert S.. Fuel cap leakage tester. USP1999125996402.
  8. Harris Robert S. ; Bowden Bruce K. ; Foltz Dean C.. Fuel cap leakage tester. USP1999095952559.
  9. Hart George R. (Lakewood OH) Nehoda Charles J. (Broadview Heights OH). Fuel injection system tester. USP1991065020362.
  10. Cook John E. (Chatham CAX) Perry Paul D. (Chatham CAX). Fuel vapor leak detection system. USP1995025390645.
  11. Dominey Sam C. (Glendora CA) Mahoney John J. (San Bernardino CA). Helicopter blade crack indicator. USP1976103985318.
  12. Ochiai Eijiro (Chigasaki JPX) Umezawa Akio (Chigasaki JPX). Leak detecting apparatus using compound turbo-molecular pump. USP1996105561240.
  13. Schlereth Fritz H. (Baldwinsville NY) Morgan Michael J. (Syracuse NY). Leak standard generator. USP1979084164861.
  14. Martin Carl R. ; Demott Ronald D.. Leak tester with flexible equation capabilities. USP1998125847264.
  15. Balke David J. (Chicago IL) Hoffmann Jacques E. (Chicago IL). Leakage detection system. USP1996085546789.
  16. Filippi Ernest A. ; Miller Kenneth L.. Method and apparatus for calibrating a leak detector. USP1999035883301.
  17. Dodge Roger C. (Taylor MI). Method and apparatus for leak test. USP1986034575807.
  18. Rogers John N. (Tucson AZ) Tedeschi Rinaldo (Newington CT) Poracaro Vincent J. (Newington CT). Method and apparatus for testing of tank integrity of vehicle fuel systems. USP1994125369984.
  19. Ralston Douglas E. (6055 Deer Run Rd. Chagrin Falls OH 44022). Method and system for monitoring circuit breaker gas pressure. USP1996035502435.
  20. Lehmann Martin,CHX. Method for leak testing and leak testing apparatus. USP2000076082184.
  21. Hensel Frederick W. (Butler PA) Hensel Mark F. (Butler PA) Sandstrum Steve D. (Kingwood TX) Coleman John (Sugarland TX) Parnell John H. (Houston TX) Boros Stephen J. (Friendswood TX). Pipe testing equipment. USP1994035295392.