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Class Information
Number: 976/DIG.130
Name: Nuclear technology > Control of nuclear reaction [g21c-7/00] > By application of neutron-absorbing material (i.e., material with absorption cross section very much in excess of reflection cross section) [g21c-7/06] > By displacement of a fluid or fluent neutron-absorbing material (e.g., by adding neutron absorbing material to the coolant) [g21c-7/22]
Description:










Patents under this class:

Patent Number Title Of Patent Date Issued
5082618 Method and device for modifying the concentration of the soluble poison contained in the cooling fluid of the primary circuit of a nuclear reactor Jan. 21, 1992
4735767 Method and device for reducing the activity of a gas-cooled stacked-ball nuclear reactor Apr. 5, 1988
4693862 Gas displacement spectral shift reactor and control method Sep. 15, 1987
4687621 Nuclear fuel assembly with improved spectral shift-producing rods Aug. 18, 1987
4681732 Method of and device for the reduction of reactivity of a nuclear reactor core Jul. 21, 1987
4545954 Device for shutting down a high-temperature nuclear reactor Oct. 8, 1985
4495140 Permanent deactivation of nuclear reactor Jan. 22, 1985
4371495 Self rupturing gas moderator rod for a nuclear reactor Feb. 1, 1983
4279697 Method of and apparatus for shutting down a gas-cooled nuclear reactor Jul. 21, 1981
4225390 Boron control system for a nuclear power plant Sep. 30, 1980
4073683 Boron control system for a nuclear power plant Feb. 14, 1978
4043865 Pressurized-water reactor coolant treatment system Aug. 23, 1977
4032401 Combined solid and liquid system for controlling nuclear reactors Jun. 28, 1977
4021301 Nuclear reactor installation May. 3, 1977
4017358 Boron thermal regeneration system Apr. 12, 1977











 
 
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