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Class Information
Number: 976/DIG.20
Name: Nuclear technology > Nuclear reactors [g21c-1/00] *** (fusion reactors h05h-1/00; nuclear explosives dig. 423; analogue computers therefor g06g-7/54) > Thermal reactors; epithermal reactors [g21c-1/04] > Heterogeneous reactors (i.e., in which the fuel and moderator are separated) [g21c-1/06] > Moderator being highly pressurized (e.g., boiling water reactor; integral super-heat reactor; pressurized water reactor) [g21c-1/08] *** (dig. 30 takes precedence) > Pressure regulating arrangements; "pressurizers" [g21c-1/08b]
Description:










Patents under this class:

Patent Number Title Of Patent Date Issued
4728486 Pressurized water nuclear reactor pressure control system and method of operating same Mar. 1, 1988
4728485 Method for regulating the pressure of the primary circuit during the shut-down phases of a pressurized water nuclear reactor Mar. 1, 1988
4717532 Pressure control system for a pressurized water nuclear reactor plant Jan. 5, 1988
4707002 Method and device for connecting a submersible element to an enclosure under very high pressure Nov. 17, 1987
4673546 Pressurizer loop seal insulation assembly Jun. 16, 1987
4664877 Passive depressurization system May. 12, 1987
4629601 Stirrup-type support structure for nuclear power plant pressurizer valves Dec. 16, 1986
4588548 Pressurizer passive steam relief and quench spray system May. 13, 1986
4576788 Straddle-type support structure for nuclear power plant pressurizer valves Mar. 18, 1986
4426350 Valve support arrangement for pressurizer in a nuclear power plant Jan. 17, 1984
4425963 Heat insulation for dome-shaped bottom and/or cover region of a pressure vessel Jan. 17, 1984
4319961 Fixing device for detachably fixing a heating element Mar. 16, 1982
4255840 Method of repairing a heating element in a pressurizer Mar. 17, 1981
4246069 Heat-generating nuclear reactor Jan. 20, 1981
4135552 Pressurizer heaters Jan. 23, 1979
4124067 Pressurization apparatus with an intermediate reserve vessel Nov. 7, 1978
4086308 Pressurized relief tank for steam Apr. 25, 1978











 
 
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