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특허 상세정보

Tank seal for guided wave radar level measurement

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01F-023/00   
미국특허분류(USC) 073/290.V; 073/290.R; 073/866.5
출원번호 US-0100768 (2005-04-07)
등록번호 US-7255002 (2007-08-14)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Westman, Champlin & Kelly, P.A.
인용정보 피인용 횟수 : 24  인용 특허 : 19
초록

A microwave level gauge for measuring a level of a process material in a tank includes a ceramic seal and a microwave conductor. The ceramic seal is disposed adjacent to an opening in the tank and adapted to isolate circuitry from the process material. The microwave conductor is electrically coupled to the circuitry and extends through the hermetic seal and into the process material in the tank. The ceramic seal and an isolating adapter cooperate to isolate the microwave conductor from the process fluid and from external forces.

대표
청구항

What is claimed is: 1. A microwave level gauge for measuring a level of a process fluid in a tank with a tank atmosphere, the microwave level gauge comprising: a hollow adapter body extending from a lower portion that is open to the tank atmosphere to a transmitter mount outside the tank; a connector rod extending from the lower portion and connectable to an antenna in the tank; conductors coupled between the connector rod and the transmitter mount such that microwaves are couplable from the antenna to the transmitter mount; and a primary seal in the lo...

이 특허에 인용된 특허 (19)

  1. Eric R. Lovegren ; David L. Pederson. Close proximity material interface detection for a microwave level transmitter. USP2002096445192.
  2. Gard, Alan Moravec. Coaxial probe for high temperature and high pressure applications. USP2003116642807.
  3. Indig Maurice E. (Fremont CA) Miller William D. (San Jose CA). Electrode probe for use in aqueous environments of high temperature and high radiation. USP1993065217596.
  4. Jeffrey P. Danicich ; Eric D. Haugen ; Greg A. Seidel ; Charles G. Huss ; Derrick D. Hongerholt. Fluid level sensor with dry couplant. USP2002076412344.
  5. Berry, James M.; Gard, Alan M.. Guided wave radar level transmitter with automatic velocity compensation. USP2005036867729.
  6. Soroka Valery. High temperature high pressure probe seal. USP2001066247362.
  7. Gravel James L. ; Johnson Bruce L. ; Kronmiller James A. ; Olson Randall C. ; Kruse Steven D.. Level probe with modular connection. USP2000116148681.
  8. Willson Jolyon P. (Andover GB2) Richards Paul N. (Chineham GB2). Measurement of liquid level. USP1993105249463.
  9. Palan Donald F.. Microwave level gauge having an adapter with a thermal barrier. USP1998125851083.
  10. Palan Donald F. ; Miller Jon D.. Microwave waveguide for tank level sensors. USP1999035877663.
  11. Basil ; Jr. Richard V. (Chatsworth CA) Eick Meredith K. (Torrance CA) Leetmaa Juri G. (Los Angeles CA) Swartz Donald G. (Couer d\Alene ID). Microwave window. USP1988074757292.
  12. Mohr Charles L. (1440 Agnes St. Richland WA 99352). Mixed fluid time domain reflectometry sensors. USP1996095554936.
  13. Innes Sean C. ; Leonard James S. ; Reinhart Albert A. ; Champion James R.. Probe for sensing fluid level. USP1999085943908.
  14. Telder Bert Jan,CAX ITX T6K 3W5. Probe for use in time domain reflectometry. USP1998075781019.
  15. Queyquep Cesar L.. Probe secondary seal. USP1999055907112.
  16. Cummings Donald D. (Greenwood IN) Wartmann Gerd (Greenwood IN) Perdue Kenneth L. (Franklin IN). Sensor apparatus for process measurement. USP1997085661251.
  17. Grieger Bernd D. ; Cummings Donald D.. Sensor apparatus for process measurement. USP1998105827985.
  18. Donald V. Eason. Sensor apparatus for transmitting electrical pulses from a signal line into and out of a vessel to measure a process variable-in order to be more informative. USP2002056386055.
  19. Maier Winfried (Maulburg DEX). Sensor for capacitively measuring the level of material in a container. USP1986034574328.

이 특허를 인용한 특허 피인용횟수: 24

  1. Reimelt, Ralf; Osswald, Dirk. Apparatus for ascertaining and monitoring fill level of a medium in a container. USP2012068196465.
  2. Osswald, Dirk; Reimelt, Ralf. Apparatus for determining and/or monitoring the fill level of a medium in a container. USP2010047698940.
  3. Bergmann, Eric; Feisst, Sr., Klaus. Apparatus for determining fill level of a fill substance in a container with process isolation having at least two plastics. USP20181010113899.
  4. Hoferer, Christian; Zimmermann, Florian. Coaxial probe having a tensioned internal conductor. USP20190310222250.
  5. Hell, Roland. Container arrangement with a level sensor, and a level sensor for a container arrangement. USP2009047513152.
  6. Fredriksson, Hakan; Eriksson, Mikael. Guided wave radar level gauge with improved sealing arrangement. USP2014098842039.
  7. Fredriksson, Hakan; Ohlsson, Magnus. High temperature, high pressure (HTHP) radar level gauge. USP2015129212941.
  8. Kopp, Thomas. Level indicator and process for assembling a level indicator. USP2012028111167.
  9. Feisst, Klaus; Bergmann, Eric. Level monitoring device for determining and monitoring a fill level of a medium in the process area of a vessel. USP2011087999725.
  10. Sintes, Hugh Corum; Becroft, Mario Brian Daniel; Pryor, Raymond John; Smith, Andrew Bryce. Level sensor. USP2012018091579.
  11. Feisst, Klaus; Bergmann, Eric. Measuring device of process automation technology for ascertaining and monitoring a chemical or physical process variable in a high temperature process in a container. USP2015089110165.
  12. Schroeder, A. A. Jud; Griego, Albert; Santy, David; Minica, Jason. Modular electronic carbonator fluid level control mechanism. USP2018059968893.
  13. Schroeder, A. A. Judd; Griego, Albert; Santy, David; Minica, Jason. Modular electronic carbonator fluid level control mechanism. USP2015059038991.
  14. Hedtke, Robert C.. Multivariable guided wave radar probe. USP2017129841307.
  15. Halliburton, Charles David. Process connector design to reduce or eliminate hoop stress in dielectric components. USP2016119502811.
  16. Larsson,Lars; ��der,Marianne; Vilhelmsson,Katarina; Westerling,Jan. Processing of tank signal in radar level gauge system. USP2008047355548.
  17. Fredriksson,H��kan. Radar level gauge system and coupling. USP2008127467548.
  18. Sheikman, Boris Leonid; Clark, Sherrie Ann; Roush, Susan Lee. Sensor assemblies used to detect the proximity of a material to a microwave element. USP2014038674707.
  19. Heath, Stuart James; Hughes, Michael Kon Yew. Streamlined probe for guided wave radar measurement. USP20180910066980.
  20. Edvardsson, Olov. System and method for filling level determination. USP2011098018373.
  21. Miskell, Thomas J.; Tan, Zhenyu; Petriel, Kevin J.; Carvalho, Carlos E.; Lavon, Ronie. System and method for optimizing sweep delay and aliasing for time domain reflectometric measurement of liquid height within a tank. USP2014088794063.
  22. Lavon, Ronie; Carvalho, Carlos Eduardo; Miskell, Thomas; Rizzo, Vincent; Petriel, Kevin John. TDR fluid level sensor. USP2016099453755.
  23. Fredriksson, Hakan. Tank feed through structure for a radar level gauge. USP2016039291492.
  24. Heath, Stuart James. Use of resilient seals for high temperature and/or high pressure sealing in a guided wave radar level measurement device. USP2017119810568.