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Class Information
Number: 976/DIG.140
Name: Nuclear technology > Emergency protection arrangements structally associated with the reactor (e.g., safety valves provided with pressure equalization devices) [g21c-9/00] *** (emergency cooling arrangements dig. 196) > Pressure suppression [g21c-9/00b]
Description:










Sub-classes under this class:

Class Number Class Name Patents
976/DIG.141 By rupture discs or diaphragms [g21c-9/00b2] 5
976/DIG.142 By stream condensation or by thermal accumulation [g21c-9/00b4] 32


Patents under this class:

Patent Number Title Of Patent Date Issued
5024805 Method for decontaminating a pressurized water nuclear reactor system Jun. 18, 1991
4925623 Clamping arrangement for stainless steel fiber filter elements May. 15, 1990
4889682 Passive cooling system for nuclear reactor containment structure Dec. 26, 1989
4873050 Method and apparatus for pressure relief of a nuclear power plant Oct. 10, 1989
4865803 Gas discharge system for the safety containment of a nuclear reactor Sep. 12, 1989
4863677 Nuclear power plant having a containment Sep. 5, 1989
4859405 Filtered venting and decay heat removing apparatus and system for containment structures, and method of operation Aug. 22, 1989
4816210 Passive filtered containment vent Mar. 28, 1989
4801424 Liquid receiver which acts as a pressure relief valve for a nuclear reactor Jan. 31, 1989
4777013 Nuclear reactor, in particular a high-temperature reactor Oct. 11, 1988
4741879 Catalytic igniters and their use to ignite lean hydrogen-air mixtures May. 3, 1988
4698202 Process for installation for the controlled discharge of activity from a reactor containment structure of a gas-cooled nuclear power plant Oct. 6, 1987
4661312 Pressure relief system in nuclear reactors Apr. 28, 1987
4648425 System and method of confirming operation of a steam relieving safety valve for a water-cooled nuclear reactor Mar. 10, 1987
4600553 Reactor cavity Jul. 15, 1986
4584164 Valve control for low temperature overpressure protection in a nuclear power plant Apr. 22, 1986
4576782 Nuclear reactor loss of coolant protection system Mar. 18, 1986
4505875 Coolant standpipe system for protection of a nuclear reactors safety vessel against breakdown from overpressure Mar. 19, 1985
4495147 Heat-retarding closure system for pressure relief openings of partitions, in nuclear reactor buildings Jan. 22, 1985
4428904 Blow-off device for limiting excess pressure in nuclear power plants, especially of the boiling water reactor-type Jan. 31, 1984
4210614 Passive containment system Jul. 1, 1980
4157939 Pressurized-water reactor emergency core shutdown Jun. 12, 1979
4151689 Nuclear engineering installation May. 1, 1979
4064001 Hot leg relief system Dec. 20, 1977
4061535 Industrial technique Dec. 6, 1977
4019955 Vessel steam relief system for a nuclear reactor Apr. 26, 1977
3937651 Nuclear reactor facility Feb. 10, 1976
3930937 Steam relief valve control system for a nuclear reactor Jan. 6, 1976











 
 
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