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Double check valve assembly for fire suppression system 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G08B-021/00
출원번호 US-0671632 (2000-09-28)
발명자 / 주소
  • George J. McHugh
출원인 / 주소
  • AGF Manufacturing, Inc.
대리인 / 주소
    Burns, Doane, Swecker & Mathis, LLP
인용정보 피인용 횟수 : 12  인용 특허 : 50

초록

A double check valve assembly having at least one three way valve with a pressure gauge in communication with the double check valve downstream of the second check valve. A flow detection arrangement with a battery powered alarm and automatic dialer and time delay circuit is included with a test and

대표청구항

1. A back flow prevention arrangement for a fire suppression sprinkler system, comprising: a first check valve; a second check valve; a first test port downstream of the second check valve; a second test port provided between the first check valve and the second check valve; in a third test port

이 특허에 인용된 특허 (50)

  1. Leon Robert L. (Maple Glen PA), A.C. electromagnetic system for determining position of an encased movable electrically conductive element.
  2. Young Richard Jack, Apparatus and method for multipurpose residential water flow fire alarm.
  3. Ames Philip L. (1978 Praymeadow Rd. Glenbrook NV 89413) Prokop Alexander (Reno NV) Schulz Rainer R. (Sparks NV), Automatic fluid shutoff system.
  4. Freeman Robert M. (Tacoma WA), Autopilot employing improved hall-effect direction sensor.
  5. Schilling Roger A. ; Heckathorne Tom A. ; Schwarz Edward L., Bi-directional actuator using a random direction AC motor.
  6. Hedger Thomas A. ; McGehee Scott, Catalyst flow alarm.
  7. Ricci Roy J. (Annapolis MD) Hill Gary L. (Kennesaw GA) Burton Charles A. (White GA) Eslinger Rodney M. (Marietta GA), Check valve position indication system and method.
  8. Doner Thomas, Circuit for controlling operation of a load after a predetermined time delay.
  9. McHugh George J. (Broomall PA), Combined alarm and back-flow prevention arrangement for fire suppression sprinkler system.
  10. Galaszewski William (Brookfield WI), Concealed sprinkler head.
  11. Simons John R. (Greendale WI) Galaszewski William (Brookfield WI), Concealed sprinkler head assembly.
  12. Somerville Michael J. (25 North Street Lewes ; East Sussex GB2) Pollard Ian F. (25 North Street Lewes ; East Sussex GB2) Walker William J. (25 North Street Lewes ; East Sussex GB2 BN7 2PE), Control apparatus.
  13. Friedrich, Hornung; Hans-Joachim, Vogt, Control circuit for triacs.
  14. Galaszewski William (Brookfield WI), Deflector for side wall sprinkler head.
  15. Thygesen Theodore E. (Downers Grove IL), Disk valve with improved disk mounting.
  16. Simons John R. (Greendale WI), Fast response sprinkler head.
  17. Willey Michael R. (19 Hollydale Close Reading Berkshire GB2) Jolliffe Raymond (24 Cathedral Rd. Cardiff GB2), Fire extinguishing apparatus.
  18. Fenske John W. (Wauwatosa WI) Simons ; deceased John R. (late of Milwaukee WI by Barbara J. Simons ; personal representative ), Fire protection sprinkler head with spaced zones for mounting a protective guard and for connecting the sprinkler head t.
  19. Shirkhan Hamid (Watertown MA), Flow compensated pump.
  20. Polverari Paul G. (Branford CT), Flow switch.
  21. Eynon Lawrence R. (Pewaukee WI), Frangible bulb sprinkler head.
  22. Brace Paul H. (Rockford IL) Balmer Wilbur P. (Rockford IL), Hall effect position detector.
  23. Stettner ; Joseph C. ; Ott ; James H., Intruder deterrent apparatus and method.
  24. Huber Paul G. (Pawtucket RI), Load control and switching circuits.
  25. Evans Mark M. (Bremerton WA) Kruchowy Roman V. (Somis CA), Magnetic amplifier housing and detector for an improved tamper alarm system.
  26. Pearman Arthur N. J. (St. Paul MN), Method and apparatus for proving electronic gas meters at low flow rates.
  27. Walker ; Sr. Frank J. (8340 Northeast 2nd Ave. Miami FL 33138) Walker ; Jr. Frank J. (5711 S. Utica Ave. Tulsa OK 74105), Method and system for controlling a mechanical pump to monitor and optimize both reservoir and equipment performance.
  28. Leon Robert L. (Maple Glen PA), Method for determining position of an internal, movable conductive element.
  29. Nakasone Henry H. (1672 Camrose Way Anaheim CA 92802) Jimerson Bruce D. (6415 Corsini Pl. Rancho Palos Verdes CA 90274), Momentary contact light switch.
  30. Casada Donald A. (Knoxville TN) Haynes Howard D. (Knoxville TN), Noninvasive valve monitor using constant magnetic and/or DC electromagnetic field.
  31. Simons John R. (Greendale WI), Partially concealed fast response sprinkler head.
  32. Krahn Donald R. (Eagan MN), Position detection apparatus including a circuit for receiving a plurality of output signal values and fitting the outpu.
  33. Wozniak Kenneth P. (Chelsea MI), Position sensor with a magnetic proximity switch mechanism.
  34. Rose John F. (Underwood MN), Rotary shaft position reed switch.
  35. Bloemer John M. (Sheboygan WI) Kolar Anton J. (Sheboygan WI) Hildebrand Jeffrey C. (Kohler WI) Kurth Michael J. (West Bend WI), Seat cover actuated flushing mechanism for toilet.
  36. Steutermann Edward M. (13305 Laurel Ct. Prospect KY 40059), Select-a-range control device.
  37. Mendelson, Robert M., Self-quenching circuit.
  38. Steutermann Edward M. (13305 Laurel Ct. Prospect KY 40059), Shaft position detector and control device.
  39. Grogan Martin L. (Cedar Rapids IA), Solid state AC power relay.
  40. Iwasaki Yuzo (Arita JPX), Solid-state relay.
  41. Simons John R. (Greendale WI), Sprinkler head having cap ejection system.
  42. McHugh George J. (Broomall PA), Supply valve and arrangement for fire suppression water sprinkler system.
  43. Karpenko Anatole N. (San Francisco CA), Swing check valve with internally balanced disc.
  44. Leon Robert L. (Maple Glen PA), System for determining position of an internal, movable conductive element.
  45. Crawford John S. (Walkerville AUX) Kay Malcolm J. (Lockleys AUX) Tracy Philip A. (Epping ; New South Wales AUX), System for triac trigger control in combination with a sensing element.
  46. Sackett Robert L. (4943 Mt. Durbin Dr. San Diego CA 92117), Translatable dual magnets.
  47. McHugh George J., Valve and arrangement for fire suppression system.
  48. McHugh George J. (Broomall PA), Valve and arrangement for fire suppression water sprinkler system.
  49. McHugh George J. (Broomall PA), Valve and sensor arrangement.
  50. McHugh George J., Valve with integral flow switch.

이 특허를 인용한 특허 (12)

  1. Raule, Steffen, Arrangement for handling a liquid medium.
  2. Golinveaux, James E.; Leblanc, David J., Ceiling-only dry sprinkler systems and methods for addressing a storage occupancy fire.
  3. Golinveaux, James E.; Leblanc, David J., Ceiling-only dry sprinkler systems and methods for addressing a storage occupancy fire.
  4. Golinveaux, James E.; Leblanc, David J., Ceiling-only dry sprinkler systems and methods for addressing a storage occupancy fire.
  5. Golinveaux, James E.; Leblanc, David J., Ceiling-only dry sprinkler systems and methods for addressing a storage occupancy fire.
  6. Golinveaux, James E.; Leblanc, David J., Ceiling-only dry sprinkler systems and methods for addressing a storage occupancy fire.
  7. Golinveaux, James E.; Leblanc, David J.; Wilkins, Roger S., Ceiling-only dry sprinkler systems and methods for addressing a storage occupancy fire.
  8. Chattaway, Adam; Dunster, Robert G., Combined fire extinguishing system.
  9. Katzman, Youval; Greenberg, Kobby, Double check valve.
  10. Johnson, Augustus W., Flow control assembly for a fire sprinkler system.
  11. Thybo, Claus, Method for operating a valve.
  12. Hegberg, Mark C.; Shafique, Amjed; Buranatum, Prasert; Bunluaphob, Chalard, Port integrated within valve stem.
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