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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Leakage inspection method with object type compensation

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01M-003/32    G06F-015/46   
미국특허분류(USC) 364/558 ; 73/492 ; 364/479 ; 364/507
출원번호 US-0666082 (1984-10-29)
우선권정보 JP-0171441 (1983-11-04); JP-0180680 (1983-11-21); JP-0000669 (1984-01-06)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 38  인용 특허 : 8
초록
▼

A predetermined number of preceding data items, which are obtained through measurement of change in pressure or pressure difference with respect to respective objects inspected and decided to be acceptable, are grouped according to types of the objects and stored in different storage regions. Each time new data is stored, the oldest data in the corresponding storage region is erased. An average of data stored in a designated storage region is computed and each object is decided if it is acceptable or not on the basis of the difference between the newly m...

대표
청구항
▼

In a leakage inspection method of the type wherein successive inspection cycles are performed each of which cycles includes a pressurizing procedure for applying an air pressure to an object to be inspected, followed by a balancing procedure for stabilizing the air pressure in said object, followed by an inspecting procedure wherein pressure measuring means are used to detect any change in pressure in the object a fixed period of time after completion of said balancing procedure, the improvement wherein said inspecting procedure comprises the steps of: z...

이 특허에 인용된 특허 (8)

  1. Thiele Alfred W. (Canoga Park CA) McLain Robert E. (Woodland Hills CA) Martinez ; Jr. Modesto T. (Duarte CA) Lewis Richard C. (Santa Monica CA) Kim Michael S. (Canoga Park CA). Automatic calibration system for ultrasonic inspection. USP1984074462082.
  2. Waugh John B. S. (Mountain Lakes NJ). Digital pressure sensor system with temperature compensation. USP1980104226125.
  3. Powers Whitney S. (Pine City NY). Dual head gauger apparatus with automatic adjustment for pressure variation. USP1984124490800.
  4. Kakumoto Michio (Naruto JPX). Method and apparatus for checking sealed containers for pinholes. USP1984014426876.
  5. Rapson ; Jr. William J. (Houston TX) Delatorre Leroy C. (Houston TX) Thompson Charles L. (Houston TX). Method of and apparatus for compensating for temperature in leak testing. USP1981064272985.
  6. Fujii Noritsugu (Yamaguchi JPX) Nishimura Toshimitsu (Yamaguchi JPX). Pipe leak detector. USP1986024571986.
  7. Clifford Earl W. (Getzville NY) Scherer August (Tonawanda NY). Seal tester. USP1980064205551.
  8. Houvig Felix J. (Wayne PA). Sensor output correction circuit. USP1981124303984.

이 특허를 인용한 특허 피인용횟수: 38

  1. Jongsma,Jonathon Michael; Huisenga,Garrie David. Analog-to-digital converter with range error detection. USP2006057046180.
  2. Dimmick Henry M. (Butler PA) Spryn Richard A. (Fenelton PA). Apparatus and an associated method for leak and volume inspection of containers. USP1990024899573.
  3. Schumacher, Mark S.; Eryurek, Evren. Automatic field device service adviser. USP2014078788070.
  4. Pan, Yung-Tai; Tsai, Jung-Lang. Close-type speaker leak test system and method. USP2017069693161.
  5. Longsdorf, Randy J.; Nelson, Scott D.; Davis, Dale S.; Nelson, Richard L.; Johnson, Amy K.; Brown, Gregory C.. Dedicated process diagnostic device. USP2009127630861.
  6. Rud, Jason H.. Degrading sensor detection implemented within a transmitter. USP2015129207670.
  7. Eryurek, Evren; Esboldt, Steven R.; Rome, Gregory H.. Diagnostics for resistive elements of process devices. USP2004066754601.
  8. Brown, Gregory C.; Schumacher, Mark S.. Diagnostics of impulse piping in an industrial process. USP2009047523667.
  9. Rome, Gregory H.; Eryurek, Evren; Kavaklioglu, Kadir. Electronics board life prediction of microprocessor-based transmitters. USP2005116970003.
  10. Huisenga, Garrie D.; Lewis, Richard A.; Lattimer, Donald R.. Field device for digital process control loop diagnostics. USP2009097590511.
  11. Eryurek, Evren; Kavaklioglu, Kadir. Flow diagnostic system. USP2005066907383.
  12. Wehrs, David L.; Eryurek, Evren. Flow measurement diagnostics. USP2012108290721.
  13. Eryurek, Evren; Kavaklioglu, Kadir. Flow measurement with diagnostics. USP2003116654697.
  14. Elke, Anthony Michael. Industrial process temperature transmitter with sensor stress diagnostics. USP2015069052240.
  15. Danielson Robert B. ; Meisinger Stanlee W.. Leak detection apparatus and method. USP1999126003363.
  16. Furuse Akio,JPX ; Horikawa Hiroshi,JPX ; Nakagomi Masayuki,JPX. Leak test method and apparatus. USP2001026182501.
  17. Gocho,Masanori. Leak tester. USP2007117290440.
  18. Schulz, Robert K.. Magnetic flow meter with reference electrode. USP2005076920799.
  19. Graber, William F.; Foss, Scot R.; Schulz, Robert K.. Magnetic flowmeter with verification. USP2010077750642.
  20. Kenney, Donald P.; Simmons, Walt. Method and apparatus for continuously monitoring interstitial regions in gasoline storage facilities and pipelines. USP2009087578169.
  21. Kenney, Donald P.; Simmons, Walt. Method and apparatus for continuously monitoring interstitial regions in gasoline storage facilities and pipelines. USP2013048418531.
  22. Kenney,Donald P.; Simmons,Walt. Method and apparatus for continuously monitoring interstitial regions in gasoline storage facilities and pipelines. USP2008027334456.
  23. Kenney,Donald P.; Simmons,Walt. Method and apparatus for continuously monitoring interstitial regions in gasoline storage facilities and pipelines. USP2006057051579.
  24. Kremer, Friedhelm; Schlegel, Michael. Method and measuring assembly according to the differential pressure principle having a zero-point calibration. USP20181010101185.
  25. Kouznetsov, Andrian; Nelson, Audrey; Maddux, Brian C.; Higgins, Don Q.; Nisbet, Jean A.. Method of compensating for drift in gas sensing equipment. USP2003036526801.
  26. Russell, III, Alden C.; Harris, Stuart A.; Peluso, Marcos; Borgeson, Dale W.. Multi-protocol field device interface with automatic bus detection. USP2012028112565.
  27. Eryurek,Evren; Kavaklioglu,Kadir. Pressure transmitter with diagnostics. USP2007087254518.
  28. Eryurek,Evren; Kavaklioglu,Kadir; Esboldt,Steven R.. Process device diagnostics using process variable sensor signal. USP2006037010459.
  29. Huisenga,Garrie D.; Longsdorf,Randy J.. Process device with quiescent current diagnostics. USP2006037018800.
  30. Longsdorf, Randy J.; Blumeyer, Chad C.. Process device with vibration based diagnostics. USP2009127627441.
  31. Brown,Gregory C.; Peluso,Marcos; Karschnia,Robert J.. Process diagnostics. USP2007117290450.
  32. Rud, Jason Harold; Engelstad, Loren Michael. Process variable measurement noise diagnostic. USP2017039602122.
  33. Sittler, Fred C.; Hedtke, Robert C.. Process variable transmitter with acceleration sensor. USP2014118898036.
  34. Ghandhi Jamshed B.. Rapid evaluation of thin-film barrier coatings on thick substrates via transient response measurements. USP1998085792940.
  35. Ghandhi Jamshed B.. Rapid evaluation of thin-film barrier coatings on thick substrates via transient response measurements. USP2000096116081.
  36. Miller, John P.; Eryurek, Evren. Rule set for root cause diagnostics. USP2009117623932.
  37. Stergiou, John. Testing condition of internal combustion engines by sampled detection of gas leakage. USP2003096612155.
  38. Huisenga,Garrie D.; Longsdorf,Randy J.; Lattimer,Donald R.. Two-wire process control loop diagnostics. USP2008017321846.

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