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Class Information
Number: 976/DIG.222
Name: Nuclear technology > Monitoring; testing; maintaining [g21c-17/00] > Devices or arrangements for monitoring coolant or moderator [g21c-17/02] > Moderator or coolant level detection devices [g21c-17/02k] *** (indicating or measuring liquid level in general g01f-23/00)

Patents under this class:

Patent Number Title Of Patent Date Issued
4934191 Method for electromagnetic ultrasonic conversion for monitoring the fill level and bubble formation in enclosures containing liquid Jun. 19, 1990
4832900 Test tool for a reactor vessel fluid level instrumentation May. 23, 1989
4765945 Method and apparatus for measuring the filling level in a reactor pressure vessel of a boiling-water reactor Aug. 23, 1988
4650636 Method of estimating water leakage position Mar. 17, 1987
4649015 Monitoring system for a liquid-cooled nuclear fission reactor Mar. 10, 1987
4639349 Non-invasive liquid level and density gauge for nuclear power reactor pressure vessels Jan. 27, 1987
4592230 Apparatus for and method of determining the liquid coolant level in a nuclear reactor Jun. 3, 1986
4521371 Vessel liquid level indication Jun. 4, 1985
4449403 Guide tube inserted liquid level sensor May. 22, 1984
4440717 Heated junction thermocouple level measurement apparatus Apr. 3, 1984
4418035 Coolant condition monitor for nuclear power reactor Nov. 29, 1983
4406011 Gamma thermometer based reactor core liquid level detector Sep. 20, 1983
4369368 Level measuring device Jan. 18, 1983
4302288 Fluid level control system Nov. 24, 1981
4113562 Apparatus for controlling coolant level in a liquid-metal-cooled nuclear reactor Sep. 12, 1978

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