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Frost sensor for use in defrost controls for refrigeration 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F25D-021/06
출원번호 US-0957169 (2001-09-18)
발명자 / 주소
  • Patrick D. French
  • James R. Butz
  • Bradley D. Veatch
  • Michael W. O'Connor
대리인 / 주소
    Robert M Hunter
인용정보 피인용 횟수 : 13  인용 특허 : 30

초록

An apparatus and method for measuring the total thermal resistance to heat flow from the air to the evaporative cooler fins of a refrigeration system. The apparatus is a frost sensor that measures the reduction in heat flow due to the added thermal resistance of ice (reduced conduction) as well as t

대표청구항

1. A frost sensor for mounting on an evaporative heat exchanger that is exposed to an airflow, said frost sensor comprising:a printed circuit board comprising an electrical circuit; a first temperature sensor that is mounted on said printed circuit board and that is electrically connected to said el

이 특허에 인용된 특허 (30)

  1. Brace John G. (Brown Deer WI) Sanfelippo Thomas S. (Milwaukee WI), Acoustic wave H2 O phase-change sensor capable of self-cleaning and distinguishing air, water, dew, frost.
  2. Tershak Andrew T. (Center Township ; Vanderburgh County IN) Thieneman Michael D. (Lincoln Township ; Berrien County MI), Adaptive defrost control system for a refrigerator.
  3. Tershak Andrew T. (Center Township ; Vanderburgh County IN) Thieneman Michael D. (Lincoln Township ; Berrien County MI), Adaptive demand defrost control for a refrigerator.
  4. Hansen Borge M. (Sonderborg DKX), Defroster for the evaporator of a refrigerator.
  5. White Lee A. (Keller TX), Demand defrost control method and apparatus.
  6. Borton David N. (Troy NY) Walker David H. (Winchester MA), Demand defrost controller for refrigerated display cases.
  7. Wu M. T. (Madison WI) Chai Thomas Y. (Freeport IL), Demand defrost sensor.
  8. Krueger Henry R. (Yorba Linda CA), Demand defrost system.
  9. Ansted Roger C. (San Antonio TX) Dougan Roger W. (San Antonio TX), Demand defrost time clock control circuit.
  10. Nojiri Toshiyuki (Tokyo JPX), Frost detecting device.
  11. Nojiri Toshiyuki,JPX ; Saito Shinichi,JPX, Frost detecting device.
  12. Brenner ; Jr. George John (Kirkwood MO), Frost detector.
  13. Nojiri Toshiyuki,JPX, Frost formation detector.
  14. Jaeschke James R. (Waukesha WI), Frost sensor employing self-heating thermistor as sensor element.
  15. Bahel, Vijay; Millet, Hank; Hickey, Mickey; Pham, Hung; Herroon, Gregory P., Frost/defrost control system for heat pump.
  16. Szynal Joseph M. (Laporte IN) Maddix Beth A. (Lincoln Township ; Berrien County MI) Guess Ronald W. (Evansville IN), Fuzzy logic adaptive defrost control.
  17. Sabin Cullen M. (Solana Beach CA) Poppendiek Heinz F. (La Jolla CA), Means and techniques useful in detecting frost.
  18. Baker Michael J. (Bedfordshire GB2), Phase change warning devices.
  19. Taras Michael F. ; Reason John R. ; Lewis Russell G., Refrigeration and heating cycle system and method.
  20. Janke Donald E. (Benton Township ; Berrien County MI) Linstromberg William J. (Lincoln Township ; Berrien County MI), Refrigeration apparatus defrost control.
  21. Brooks Robert B. (Louisville KY), Refrigeration apparatus demand defrost control system and method.
  22. Elliott Marvel A. (Louisville KY) Sidebottom Donald L. (Louisville KY), Refrigeration apparatus demand defrost control system and method.
  23. Kramer Doris S. (2009 Woodland Drive Yardley PA 19067), Refrigeration evaporators with ice detectors.
  24. Bashark Larry T. (St. Joseph MI), Refrigeration system defrost control.
  25. Ridenour Ralph G. (626 Lexington-Ontario Rd. Mansfield OH 44903), Refrigeration system detection assembly.
  26. Starck Roland (Rlzheim DEX) Roller Hanno (Kandel DEX), Sensor for detecting frost deposits.
  27. Bruchmller Hans-George (Giengen DEX), Sensor for monitoring the deposition of frozen fog and/or ice on surfaces.
  28. Hollenbeck Robert K. (Fort Wayne IN) Becerra Roger C. (Fort Wayne IN) Beifus Brian L. (Fort Wayne IN) Tatman Richard S. (Tyler TX) Hittie ; Jr. William C. (Fort Wayne IN), System and method initiating defrost in response to speed or torque of evaporator motor.
  29. Stein John C. (Fort Wayne IN) Hutchison Donald W. (Fort Wayne IN), Temperature probe for air conditioning device.
  30. Gelbard Robert B. (Louisville KY), Thermal delay demand defrost system.

이 특허를 인용한 특허 (13)

  1. Vogh, III,Richard P., Anti-condensation control system.
  2. Yoon, Doo Eui; Artwohl, Paul, Anti-condensation control system.
  3. Smith, Becky, Apparatus and method for detection of a film on a surface.
  4. Swofford,Timothy Dean; Howington,Larry C.; Stephens,Arnold M.; Tanner,Robert D., Defrost system for a refrigeration device.
  5. Unezaki, Fumitake; Ito, Shinichi, Dehumidifying apparatus.
  6. Gokhale, Umesh; Berg, Eric; Douglas, Jon, Detecting and handling a blocked condition in the coil.
  7. Ragazzi, Franco, Method and system for reducing the possibility of vehicle heat exchanger freezing.
  8. Ghan, Michael A.; Conant, James R., Removal of an accumulated frozen substance from a cooling unit.
  9. Lane, Mark; Davidson, Michael B., Service case.
  10. Lane, Mark; Davidson, Michael B.; Arshansky, Yakov; Hinde, David K.; Walker, Richard N., Service case.
  11. Hung, Der-Kai; Havard, Jr., Harold Gene; Leal, Rosa Maria, System for operating an HVAC system having tandem compressors.
  12. Ingley, III, Herbert A.; Sherif, Sherif A., System for trapping airborne water in cooling and freezing devices.
  13. Hall, David L., Variable power defrost heater.

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