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Class Information
Number: 976/DIG.121
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 solid control elements (e.g., control rods) [g21c-7/08] > Construction of control elements [g21c-7/10] > Control elements adapted for pebble bed reactors [g21c-7/10c]

Patents under this class:

Patent Number Title Of Patent Date Issued
4863672 Absorber rod Sep. 5, 1989
4830818 Ceramic installations May. 16, 1989
4816212 Graphite side reflector Mar. 28, 1989
4798700 Ceramic installations Jan. 17, 1989
4744922 Neutron-absorbing material and method of making same May. 17, 1988
4636350 Process for the control and shutdown of a gas-cooled reactor Jan. 13, 1987
4332030 Paired absorber elements for gas cooled high temperature reactors May. 25, 1982
4082609 Control rod for gas-cooled nuclear reactors Apr. 4, 1978
4010070 Absorber element for pebble-bed reactors Mar. 1, 1977
3979258 Nuclear reactor Sep. 7, 1976

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