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Method and apparatus for measuring the axial load and position of a valve stem 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01M-019/00
  • F16K-037/00
  • G01L-005/00
출원번호 US-0169256 (1993-12-20)
발명자 / 주소
  • Smith Christopher P. (Acworth GA) Anderson Paul G. (Acworth GA)
출원인 / 주소
  • Westinghouse Electric Corporation (Pittsburgh PA 02)
인용정보 피인용 횟수 : 38  인용 특허 : 0

초록

A method and apparatus for measuring and monitoring the axial load or thrust on the valve stem of an air operated valve assembly. The top end of the valve stem is connected to bottom end of the valve actuator drive shaft by a marriage block connector member having a plurality of strain gages capable

대표청구항

A method for measuring and monitoring the axial load on a valve stem, the method comprising the steps of connecting one end of the valve stem to one end of a valve actuator drive shaft with a marriage block connecting member capable of generating an electrical signal representative of the axial load

이 특허를 인용한 특허 (38)

  1. Balaschak James J. (Duxbury MA) Fujio Masatsugu (Fukuoka JPX) Hayashi Keiichiro (Fukuoka JPX) Okano Masatoshi (Fukuoka JPX) Thrall David E. (Marion MA), Abnormality detection/suppression system for a valve apparatus.
  2. Harper, James D., Actuator assembly.
  3. Carroll ; III John T. (Columbus IN) Bailey Thomas L. (Columbus IN), Apparatus and method for determining start of injection in a fuel injected internal combustion engine.
  4. Searle,Robert F., Apparatus for measuring torque.
  5. Snowbarger, Jimmie L.; Ali, Riyaz M.; Flanders, Patrick S., Control device test system with a remote switch activation.
  6. Nowak, Franz Marcus, Control of rotary valve operation for reducing wear.
  7. Boger, Henry W.; Esposito, Sandro, Control valve and positioner diagnostics.
  8. Boger, Henry W.; Esposito, Sandro, Control valve and positioner diagnostics.
  9. Feinauer, Markus; Jacob, Christof, Device for indicating the position of a valve spindle.
  10. Robinson, Thomas Patrick; Clemens, Charles E.; Mishelevich, David Jacob; Braig, James Roswell; Fulkerson, Barry Neil; Ghidoli, Daniele; Joseph, Russell Thomas, Disposable apparatus and kit for conducting dialysis.
  11. Smart, Harold R.; Zhou, Chuhe, Dynamic current-to-pneumatic converter and pneumatic amplifier.
  12. Noh, Byung Hoo; Sim, Hee Goo; Jang, Sung Dong, Linear valve position measuring apparatus.
  13. Fulkerson, Barry Neil; Huang, Alec; Kelly, Brian Thomas, Manifold diaphragms.
  14. Fulkerson, Barry Neil; Joseph, Russell T., Manifolds for use in conducting dialysis.
  15. Fumio Morikawa JP; Nobuyuki Ishitsuka JP; Makoto Ishikawa JP, Method and device for managing operation of solenoid valve.
  16. Winchcomb John,GBX ; Hogstrom Karl-Kristian,FIX, Method and device for verifying the workability of a safety device.
  17. Pyotsia Jouni,FIX ; Ylikoski Esko,FIX, Method and equipment for determining the performance of control valve.
  18. Metso Mika,FIX ; Pyotsia Jouni,FIX, Method for surveying the condition of a control valve, and a valve apparatus.
  19. Schoonover,Larry, Method, system and storage medium for performing online valve diagnostics.
  20. Fulkerson, Barry Neil; Smith, Mark, Modular reservoir assembly for a hemodialysis and hemofiltration system.
  21. DeBruyne, Todd W., Partial stroke valve test apparatus.
  22. Morlan David E. ; Smith Christopher P., Permanently instrumented actuated valve assembly, with internally-gauged, permanently instrumented shaft.
  23. Fulkerson, Barry Neil; Braig, James Roswell; Mishelevich, David J; Clemens, Charles; Foster, Clark Berg; Hering, Martin; Zwierstra, Jan Brian; Joseph, Russell Thomas; Gura, Victor; Robinson, Thomas; Trcka, Milan; Ghidoli, Daniele; Isackson, Frank; Smith, Mark Forrest, Portable dialysis machine.
  24. Fulkerson, Barry Neil; Huang, Alec; Kelly, Brian Thomas; Nolan, Tam, Portable dialysis machine with improved reservoir heating system.
  25. Byler, Terry Lynn, Smart actuator for valve.
  26. Byler, Terry Lynn, Smart actuator for valve.
  27. Esposito,Sandro; Payne,John Thurman, System and method for fluid regulation.
  28. Esposito, Sandro, Systems and processes for field-initiated fluid regulation testing.
  29. Robert Raoul W., Torque/position transducer.
  30. Boger, Henry; Colwell, Christopher; Levesque, Peter; Schoonover, Larry; Villier, Raymond; Vital, Denis; Zhou, Chunhe; Stares, James, Valve positioner system.
  31. Henry Boger ; Christopher Colwell ; Peter Levesque ; Larry Schoonover ; Raymond Villier FR; Denis Vital FR; Chunhe Zhou ; James Stares, Valve positioner system.
  32. McCormick, Nathan, Valve stem connector with integrated stem force measurement.
  33. Johnson William T. ; Hare Daniel J., Valve stem thrust measuring device.
  34. Smith, Mark Forrest, Valve system.
  35. Garrigues Jean-Claude,FRX ; Ferragne Hubert,FRX ; Duboy Dominique,FRX, Valve with actuator whose functional capability can be monitored.
  36. Snowbarger, Jimmie L., Versatile emergency shutdown device controller implementing a pneumatic test for a system instrument device.
  37. Snowbarger, Jimmie L., Versatile emergency shutdown device controller implementing a pneumatic test for a system instrument device.
  38. Snowbarger, Jimmie L., Versatile emergency shutdown device controller implementing a pneumatic test for a system instrument device.
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