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특허 상세정보

Container tightness tester

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01M-003/16    G01M-003/36   
미국특허분류(USC) 73/0492; 73/0493; 73/052; 73/0454
출원번호 US-0691217 (2000-10-19)
우선권정보 EP-0107520 (1997-05-07)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Antonelli, Terry, Stout & Kraus, LLP
인용정보 피인용 횟수 : 7  인용 특허 : 15
초록

For tightness testers with a plurality of in-line test stations (1) on a conveyor it is proposed to supply the tightness-relevant measurement signals from the chambers by detecting pressure change measurements via pressure sensors or electrical impedance measurements via electrodes that occur at the test stations over a time interval. The signals are supplied through multiplexers (5) to a central evaluation (9).

대표
청구항

1. A method for in-line leak testing containers comprising:providing a number of leak test stations, each for at least one container, on a movable conveyor wherein the test stations move with the conveyor; loading said stations with containers to be tested; generating an electric signal output on the movable conveyor at each of said stations in dependency of leakage of said container under test in a station considered; and applying the electric output signals of said stations subsequently, one after the other to an input of a common evaluation unit on sa...

이 특허에 인용된 특허 (15)

  1. Wann Laymond D. (Ponca City OK). Apparatus for detecting and locating leakage in underwater structures. USP1990084949076.
  2. Itoh Hideo,JPX ; Yokoyama Mithuo,JPX ; Itoh Saburo,JPX ; Usui Fumihiko,JPX. Can internal pressure inspection apparatus. USP1998065773711.
  3. Lehmann Martin,CHX. Container tightness test. USP2001016167750.
  4. Vinton Melvin (Cambridge GB2) Hawes Anthony D. McI. (Cambridge GB2). Hermetically sealed package tester. USP1989024803868.
  5. Seigeot Bertrand B. (Dingy Saint Clair FRX). Leak-detection installation for testing the gastightness of sealed packages. USP1994125373729.
  6. Kim Dae-woo,KRX ; Lee Jae-kyung,KRX ; Koo Bon-rip,KRX ; Kim Sang-woon,KRX. Leakage gas detector for semiconductor device and leakage gas detecting method using the same. USP1998035728940.
  7. Sumioki Kanji,JPX. Leakage inspection device for a plurality of gas vessels. USP2000026029503.
  8. Stauffer Anton (Bedford NY). Method and apparatus for leak testing a container. USP1996055513516.
  9. Lehmann Martin (Obere Farnbhlstrasse 1 5610 Wohlen CHX). Method and apparatus for leak testing a hollow body. USP1993085239859.
  10. Lehmann Martin,CHX. Method for testing containers, use of the method, and a testing device. USP1999065915270.
  11. Lehmann Martin,CHX. Method for tightness testing of closed vessels, test chamber tester and testing system therefor. USP1999105962776.
  12. Horlacher Willy (Vellberg DEX). Method of and apparatus for testing the seal of filled containers. USP1994115365774.
  13. Heuft Bernhard,DEX. Process and device for testing deformable containers for tightness. USP1999065918270.
  14. Leining Lyndon R. (Austin MN) Vandenberg Eric S. (Austin MN) Erlandson Ralph O. (Austin MN). Seal integrity tester and method. USP1990024901558.
  15. Fenlon Christopher (Bristol GB2). Testing of packages. USP1996085542288.