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특허 상세정보

Fluid sensor

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G08B-021/00   
미국특허분류(USC) 340/608 ; 340/620 ; 73/304C ; 73/304R
출원번호 US-0832560 (1997-04-02)
발명자 / 주소
대리인 / 주소
    Martin
인용정보 피인용 횟수 : 19  인용 특허 : 27
초록

A fluid sensor (100) senses a level of fluid (20) in a receptacle (10). The fluid sensor comprises a detector assembly (200) for detecting fluid and comprises sensor circuitry. The detector assembly comprises a detector body (201) comprising an electrically insulative material and defining first and second surfaces (210, 220) in a predetermined spaced relation. The detector body defines a space (250) between the first and second surfaces and defines a port (255, 257) for allowing fluid to pass in the space between the first and second surfaces. The detec...

대표
청구항

[ What is claimed is:] [1.] A fluid sensor comprising:a) a detector assembly for detecting fluid, said detector assembly comprising:i) a detector body comprising an electrically insulative material and defining a first surface and a second surface in a predetermined spaced relation with said first surface, said detector body defining a space between said first surface and said second surface and defining a port for allowing fluid to pass into said space between said first and second surfaces,ii) a first conductive layer deposited over at least a portion ...

이 특허에 인용된 특허 (27)

  1. Regnault Serge (Paris FRX) Dunon-Bluteau Francis (Chevilly-La Rue FRX). Apparatus including a capacitive probe for measuring the level and/or the volume of a liquid. USP1991105052223.
  2. Asmundsson Einar (Middle Haddam CT). Capacitance probe for liquid level measuring system. USP1986064594892.
  3. Fleckenstein Phillip P. (Port Huron MI). Capacitance-type material level probe. USP1989034811160.
  4. Coates Terence J. (Godalming GB2). Capacitive fluid-gauging probes and systems. USP1984094472968.
  5. Bristol Robert G. (Everett MA). Capacitive scheme for measuring the level of a liquid. USP1981104295370.
  6. Lease Benjamin N. (Knoxville TN). Capacitive threshold detector test circuit. USP1995085446444.
  7. Booman Glenn L. (Nesconset NY) Phelps Frank R. (Arco ID). Coaxial cavity for measuring level of liquid in a container. USP1979104170135.
  8. Berryman Walter H. (Croydon AUX) Manson Peter J. (Hawthorn AUX) Hamley Adrian H. (Chirnside Park AUX) Korb Joseph (North Geelong AUX). Device for the capacitive measurement of levels. USP1984084467646.
  9. Atherton Kim W. (Kirkland WA) Clow Charles R. (Bothell WA) Mawet Patrick H. (Everett WA). Dielectric liquid level sensor and method. USP1989024806847.
  10. Lee Calvin S. (Rancho Santa Margarita CA) Tousson Eliahou (Van Nuys CA). Digital level sensing probe system. USP1992085138880.
  11. Atherton Kim Wesley (King County WA) Barr A. Brinkley (King County WA) Harmon Thomas M. (King County WA) Van Schoiack Michael M. (King County WA) Vandehey Marvin E. (King County WA) Weyerts Richard D. Digital oil level sensor. USP1988054745893.
  12. Weitz ; Jr. Paul G. (Salisbury VT) Franklin Cecil (Middlebury VT). Electrode assembly for a capacitance type probe. USP1983104412270.
  13. Beckley Keith A. (Cheltenham GB2) Jacob Neil R. (Basingstoke GB2) Trussler Geoffrey A. (Basingstoke GB2). Fluid-gauging probes and their manufacture. USP1987094689991.
  14. Beaman Norman V. (La Habra CA). Instrument probe assembly having continuous probe insulation. USP1979014137558.
  15. Loniello Peter J. (Richfield MN). Level control structure with probes. USP1989114879902.
  16. Hansen ; III Charles C. (Hinsdale IL) Yencho John A. (Elmhurst IL) Barbier William J. (Hazelwood MO) Knapp Curtis H. (Aurora IL) Kuhn ; Jr. Orval J. (Warrenville IL). Liquid level control system for refrigeration apparatus. USP1989024809129.
  17. Hansen ; III Charles C. (Hinsdale IL) Yencho John A. (Elmhurst IL) Barbier William J. (Hazelwood MO) Knapp Curtis H. (Aurora IL) Kuhn ; Jr. Orval J. (Warrenville IL). Liquid level control system for refrigeration apparatus. USP1991075031068.
  18. Edwards Harrison F. (Norwich NY). Liquid level gauge. USP1976053956760.
  19. Edwards Harrison F. (Norwich NY). Liquid level gauge. USP1977084038871.
  20. Asmundsson Einar (Middle Haddam CT) Hart Robert P. (Glastonbury CT) Fleischer Donald W. (Wethersfield CT). Liquid level measuring system. USP1983124418571.
  21. Edmark ; III Karl W. (8502 E. Cavecreek Rd. ; Unit #2 Carefree AZ 85377). Multi-sensor probe assembly and method for fuel storage system including overflow protection means. USP1993025187979.
  22. Sasaki Asao (Noda JPX) Kubota Yousuke (Kita JPX). Oil level sensor for an internal combustion engine. USP1991105057813.
  23. Zimmermann Heino (Bremen DT). Probe for measuring liquid levels. USP1977114056978.
  24. Knight John D. (Nashua NH) Shapiro Robert D. (North Andover MA) Banks Frank H. (Wakefield MA) Mitchell Andrew (Woburn MA) Sunray Barry S. (Wakefield MA) DeFrancesco Robert A. (Metheun MA). Residential fuel-oil level reporting and alarm system. USP1989074845486.
  25. Beaman Norman Vane (La Habra CA). Seal for an instrument probe assembly. USP1977104054744.
  26. Hoekstra Linze (Ede NLX). Variable level capacitor sensor. USP1988034730489.
  27. Tuma John E. (Houston TX) Williams Barry N. (Rosharan TX) Bogle Tommy G. (Houston TX). Water sensor that detects tanks or vessel leakage. USP1992105156047.

이 특허를 인용한 특허 피인용횟수: 19

  1. Wakeman,Russell J.; Thelen,Wayne A.. Aeration sensing device. USP2006087086280.
  2. Ketelhohn,Charlie; Zimprich,Robert; Griesemer,Pat. Capacitance-based fluid level sensor. USP2009017475665.
  3. Baer, Christoph; Musch, Thomas; Deilmann, Michael; Bilgic, Attila; Neuburger, Stephan. Device for determining the fill level of a medium. USP2017129851236.
  4. Baer, Christoph; Musch, Thomas; Deilmann, Michael; Bilgic, Attila; Neuburger, Stephan. Device for determining the fill level of a medium in a container. USP20180710012525.
  5. Baer, Christoph; Musch, Thomas; Deilmann, Michael; Bilgic, Attila; Neuburger, Stephan. Device for determining the fill level of a medium in a container. USP2018029891092.
  6. Kumar, Arun; Fulton, Steven John. Flexible fluid level sensor with improved measurement capability. USP20190310240965.
  7. Kumar, Arun; Fulton, Steven John. Flexible fluid level sensor with improved measurement capability. USP2016119488513.
  8. Rice, David. Fluid leak detection and alarm. USP2013088508373.
  9. Yin, Le-Jun. Fluid level sensor. USP201504D726053.
  10. Yin, Le-Jun. Fluid level sensor. USP201503D724983.
  11. Weedon,Thomas C.. Fluid level sensor probe. USP2007077249507.
  12. Free Dan G. ; Kowalak Mark ; Mitsch Brian. Level switch filter for sewer basin. USP2000066076399.
  13. Zimmermann, Bernd D.; Reynolds, David; Gerich, Richard L.. Liquid level sensor. USP2005036862932.
  14. Kile, Ronald J.. Lubricating oil monitoring and maintenance cap with oil level monitoring system. USP20190210215334.
  15. Powers Loren T. ; Horak James M.. Marine propulsion system with water detecting sensors. USP2001076260517.
  16. Woodard, Stanley E.; Taylor, Bryant D.. Method of calibrating a fluid-level measurement system. USP2010057711509.
  17. Steffen,Michael. Oil level monitoring system for an internal combustion engine. USP2009037498932.
  18. Ward, Aub N.. Rising water alarms. USP2016079400201.
  19. Carpenter, Randy Val; Carpenter, Val. Sensing device for measuring volume, position, or mass of matter. USP2005096938479.