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Automatic device for the detection and shutoff of unwanted liquid flow in pipes 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01M-003/08
출원번호 US-0019265 (1987-02-26)
발명자 / 주소
  • Britton George L. (662 Omar Cir. Yellow Springs OH 45387) Ratino David A. (2939 Nance St. Mesa AZ 85203) Peterman Alfred W. (615 Groton Ct.
  • Apt. B Dayton OH 45431)
인용정보 피인용 횟수 : 47  인용 특허 : 0

초록

A pipe flow detector for activating a solenoid to automatically close a pipe shutoff valve in the event of a leak. The detector comprises a piezoelectric film transducer attached to the pipe, the transducer producing a fluctuating electrical signal in response to pipe vibration. An amplifier amplifi

대표청구항

A method of detecting unwanted fluid flow in a pipe to automatically trigger means for shutting off the flow, comprising: (a) attaching a piezoelectric transducer to the pipe to produce a first fluctuating electrical signal in response to pipe vibration: (b) amplifying the first fluctuating electric

이 특허를 인용한 특허 (47)

  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. Jongsma,Jonathon Michael; Huisenga,Garrie David, Analog-to-digital converter with range error detection.
  3. Jordan, Fergus, Apparatus and methods for water waste management in water distribution systems.
  4. Eryurek, Evren; Warrior, Jogesh, Auto correcting temperature transmitter with resistance based sensor.
  5. Schumacher, Mark S.; Eryurek, Evren, Automatic field device service adviser.
  6. Eryurek, Evren; Kavaklioglu, Kadir, Control system using process model.
  7. Longsdorf, Randy J.; Nelson, Scott D.; Davis, Dale S.; Nelson, Richard L.; Johnson, Amy K.; Brown, Gregory C., Dedicated process diagnostic device.
  8. Rud, Jason H., Degrading sensor detection implemented within a transmitter.
  9. Eryurek, Evren; Warrior, Jogesh, Device in a process system for determining statistical parameter.
  10. Eryurek, Evren; Esboldt, Steven R.; Rome, Gregory H., Diagnostics for resistive elements of process devices.
  11. Brown, Gregory C.; Schumacher, Mark S., Diagnostics of impulse piping in an industrial process.
  12. Coursolle, Thomas P.; Wehrs, David L., Electrode leakage diagnostics in a magnetic flow meter.
  13. Huisenga, Garrie D.; Lewis, Richard A.; Lattimer, Donald R., Field device for digital process control loop diagnostics.
  14. Eryurek, Evren; Kavaklioglu, Kadir, Flow diagnostic system.
  15. Wehrs, David L.; Eryurek, Evren, Flow measurement diagnostics.
  16. Eryurek, Evren; Kavaklioglu, Kadir, Flow measurement with diagnostics.
  17. Green, Timothy M., Fluid flow detector.
  18. Lawson William J. (P.O. Box 711 Poteet TX 78065), Fluid leak detector.
  19. Borgeson, Dale W.; DelaCruz, Moises A., Hand held diagnostic and communication device with automatic bus detection.
  20. Eryurek, Evren; Gao, Rong; Tsoukalas, Lefteri H., High accuracy signal processing for magnetic flowmeter.
  21. Elke, Anthony Michael, Industrial process temperature transmitter with sensor stress diagnostics.
  22. Diduck Victor John,CAX, Integrated local or remote control liquid gas leak detection and shut-off system.
  23. Kondou, Hiroaki, Leakage detector, leakage detection method, and pipe network monitoring apparatus.
  24. Schulz, Robert K., Magnetic flow meter with reference electrode.
  25. Graber, William F.; Foss, Scot R.; Schulz, Robert K., Magnetic flowmeter with verification.
  26. Stevens, Mark B.; Wilson, John D., Monitoring water consumption.
  27. Stevens, Mark B.; Wilson, John D., Monitoring water consumption.
  28. Russell, III, Alden C.; Harris, Stuart A.; Peluso, Marcos; Borgeson, Dale W., Multi-protocol field device interface with automatic bus detection.
  29. Eryurek, Evren; Lenz, Gary A.; Kavaklioglu, Kadir, Prediction of error magnitude in a pressure transmitter.
  30. Eryurek,Evren; Kavaklioglu,Kadir, Pressure transmitter with diagnostics.
  31. Eryurek, Evren; Kavaklioglu, Kadir; Esboldt, Steven R., Process device diagnostics using process variable sensor signal.
  32. Eryurek,Evren; Kavaklioglu,Kadir; Esboldt,Steven R., Process device diagnostics using process variable sensor signal.
  33. Huisenga,Garrie D.; Longsdorf,Randy J., Process device with quiescent current diagnostics.
  34. Longsdorf, Randy J.; Blumeyer, Chad C., Process device with vibration based diagnostics.
  35. Brown,Gregory C.; Peluso,Marcos; Karschnia,Robert J., Process diagnostics.
  36. Kleven, Lowell, Process flow plate with temperature measurement feature.
  37. Rud, Jason Harold; Engelstad, Loren Michael, Process variable measurement noise diagnostic.
  38. Sittler, Fred C.; Hedtke, Robert C., Process variable transmitter with acceleration sensor.
  39. Eryurek, Evren; Esboldt, Steven R., Resistive element diagnostics for process devices.
  40. Eryurek,Evren; Kavaklioglu,Kadir, Root cause diagnostics.
  41. Miller, John P.; Eryurek, Evren, Rule set for root cause diagnostics.
  42. Wehrs, David L., Spectral diagnostics in a magnetic flow meter.
  43. Kiewit David A. (2420 Seneca Ct. Palm Harbor FL 34683), Sprinkler alarm.
  44. Charles R. DeSmet, System for excercising the control valve for a water shut-off valve.
  45. Eryurek, Evren; Warrior, Jogesh; Esboldt, Steven R., Transmitter with software for determining when to initiate diagnostics.
  46. Huisenga,Garrie D.; Longsdorf,Randy J.; Lattimer,Donald R., Two-wire process control loop diagnostics.
  47. Everhart, William Duke, Water system leak detection.
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