$\require{mediawiki-texvc}$
  • 검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
  • 검색연산자
검색도움말
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"

통합검색

도움말도움말
상세검색 다국어 입력

연합인증

연합인증 가입 기관의 연구자들은 소속기관의 인증정보(ID와 암호)를 이용해 다른 대학, 연구기관, 서비스 공급자의 다양한 온라인 자원과 연구 데이터를 이용할 수 있습니다.

이는 여행자가 자국에서 발행 받은 여권으로 세계 각국을 자유롭게 여행할 수 있는 것과 같습니다.

연합인증으로 이용이 가능한 서비스는 NTIS, DataON, Edison, Kafe, Webinar 등이 있습니다.

한번의 인증절차만으로 연합인증 가입 서비스에 추가 로그인 없이 이용이 가능합니다.

다만, 연합인증을 위해서는 최초 1회만 인증 절차가 필요합니다. (회원이 아닐 경우 회원 가입이 필요합니다.)

연합인증 절차는 다음과 같습니다.

최초이용시에는
ScienceON에 로그인 → 연합인증 서비스 접속 → 로그인 (본인 확인 또는 회원가입) → 서비스 이용

그 이후에는
ScienceON 로그인 → 연합인증 서비스 접속 → 서비스 이용

연합인증을 활용하시면 KISTI가 제공하는 다양한 서비스를 편리하게 이용하실 수 있습니다.

특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Leakage test equipment

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01N-007/00    G01M-003/04    G01C-017/38   
미국특허분류(USC) 364/556 ; 73/1R ; 73/492 ; 73/40
출원번호 US-0913292 (1986-09-30)
우선권정보 JP-0077765 (1986-04-04)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 27  인용 특허 : 8
초록
▼

Leak test equipment which includes a master side pneumatic system and a work side pneumatic system executes a leakage test sequence basically including pressurizing, balancing and detecting steps under control of a microcomputer. A nonvolatile read/write memory has prestored therein an equivalent inner volume of the work side pneumatic system corresponding to each type of work being tested for leakage. In a leak test, a leakage DL=VEㆍDDE read out of the nonvolatile read/write memory. The calculated leakage is compared with an allowable value of leakage, ...

대표
청구항
▼

Leak test equipment provided with a check function, comprising: (a) means for charging compressed air of a test pressure into a master side pneumatic system having a reference tank connected thereto and a work side pneumatic system having a work connected thereto; (b) differential pressure sensing means for measuring the pressure difference between the master side pneumatic system and the work side pneumatic system; (c) volume changing means connected to the work side pneumatic system, for changing its inner volume by a known amount; (d) equivalent inner...

이 특허에 인용된 특허 (8)

  1. Hraud Roger A. (Orsay FRX) Amiel Jacques (Clamart FRX). Apparatus for leak testing at least one wall portion and/or a volume delimited by said wall portion, and a method of det. USP1987024640122.
  2. Powers Whitney S. (Pine City NY). Dual head gauger apparatus with automatic adjustment for pressure variation. USP1984124490800.
  3. Holm Albert E. (7259 First St. Marine City MI 48039) Holm Grant A. (8454 Rattle Run Richmond MI 48062). Method and apparatus for detecting leaks. USP1987084686851.
  4. Converse ; III Vernon G. (Franklin MI) Bordato James M. (Grosse Pointe Wds. MI) Bott Theodore R. (Berkley MI) Foerster ; Jr. Charles E. (Northville MI) Herbst ; Jr. Desra N. (Spring Valley OH) Mudge . Method and apparatus for electronic leak testing. USP1986054587619.
  5. Dodge Roger C. (Taylor MI). Method and apparatus for leak test. USP1986034575807.
  6. Bernhardt Karl-Heinz (Braunfels DEX). Method of and apparatus for measuring the rate of leak. USP1982034320653.
  7. Brayman Semyon (28023 Berkshire Southfield MI 48076). Method of measuring leak rates. USP1985064523452.
  8. Fujii Noritsugu (Yamaguchi JPX) Nishimura Toshimitsu (Yamaguchi JPX). Pipe leak detector. USP1986024571986.

이 특허를 인용한 특허 피인용횟수: 27

  1. Steckler Adam ; Pope Charlie ; Macklin Norris ; Hannaford John J.. Apparatus and method for testing brake actuator units used in railroad cars. USP1999085936153.
  2. Pan, Yung-Tai; Tsai, Jung-Lang. Close-type speaker leak test system and method. USP2017069693161.
  3. Sauter, Johannes; Bürk, Richard. Dental treatment center. USP2013038398394.
  4. Fischer, Thomas; Simader, Manfred; Kavallar, Günter. Device and method for checking the leak tightness of caps on medical hollow bodies. USP2013108567261.
  5. Glunz, Alexander; Schroff, Arno. Device for placing a stopper while simultaneously checking that the stopper is correctly positioned. USP2017109778033.
  6. Glunz, Alexander; Schroff, Arno. Device for placing a stopper while simultaneously checking that the stopper is correctly positioned. USP2014078783093.
  7. Nguyen, John H.. Equipment inspection and evaluation system, equipment management system, and computer-readable record medium with equipment management program stored therein. USP2003116647344.
  8. Nguyen, John H.. Equipment inspection and evaluation system, equipment management system, and computer-readable record medium with equipment management program stored therein. USP2005046880128.
  9. Nguyen, John H.; Emoto, Hiroshi. Equipment inspection and evaluation system, equipment management system, and computer-readable record medium with equipment management program stored therein. USP2004046728659.
  10. Nguyen, John H.; Emoto, Hiroshi. Equipment inspection and evaluation system, equipment management system, and computer-readable record medium with equipment management program stored therein. USP2004086772093.
  11. Nguyen, John H.; Emoto, Hiroshi. Equipment inspection and evaluation system, equipment management system, and computer-readable record medium with equipment management program stored therein. USP2005026850848.
  12. Miyata, Hajime; Kamon, Kenichi; Itou, Youichi; Bessyo, Daisuke; Iwamoto, Ryuji. Flowmeter. USP2015069046222.
  13. Furuse Akio,JPX ; Horikawa Hiroshi,JPX ; Nakagomi Masayuki,JPX. Leak test method and apparatus. USP2001026182501.
  14. Shimaoka Kiyoshige,JPX ; Ukonmaanaho Mauri,JPX. Leak tester and leak testing method. USP1998085795995.
  15. Matsumura Shizuo,JPX. Leakage measuring device. USP2001116321590.
  16. Filippi Ernest A. ; Miller Kenneth L.. Method and apparatus for calibrating a leak detector. USP1999035883301.
  17. Koivunen, Matti. Method and apparatus for testing the piston of an injection pump. USP2012078220321.
  18. Witschi Friedrich (Buren an der Aare CHX). Method and apparatus for testing the tightness of housings. USP1997025600996.
  19. Jan Muller SE; Peter .ANG.lleving SE. Method and device for leakage testing in a tank system. USP2002046374663.
  20. Beyer, Hans-Ernst; Kastner, Frank. Method of operating an internal combustion engine. USP2005086925864.
  21. Nakano, Keita. Methods of measuring pressure of hydraulic fluid, methods of evaluating soundness and hydraulic drive devices for carrying out the methods. USP2005096938471.
  22. Nakano,Keita. Methods of measuring pressure of hydraulic fluid, methods of evaluating soundness and hydraulic drive devices for carrying out the methods. USP2007017168771.
  23. Yoshimoto, Masahito; Iida, Hajime; Atsumi, Koji. Piston prover. USP2016119506801.
  24. Friedrichs, Hans Peter; Hubbard, Rondo K.. Pneumatic generator system for simulating operating conditions of an aircraft. USP2005106955184.
  25. Ghandhi Jamshed B.. Rapid evaluation of thin-film barrier coatings on thick substrates via transient response measurements. USP1998085792940.
  26. Ghandhi Jamshed B.. Rapid evaluation of thin-film barrier coatings on thick substrates via transient response measurements. USP2000096116081.
  27. Tootell Terence S. (Windsor CAX) Wilson Keith G. (Belle River MI CAX) Shoptaw David R. (Livonia MI). Servo valve analyzing system and method. USP1990124980825.

IPC 상위 출원인