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Class Information
Number: 976/DIG.127
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] > Means for moving control elements to desired position [g21c-7/12] > Hydraulic or pneumatic drive [g21c-7/16]
Description:










Patents under this class:

Patent Number Title Of Patent Date Issued
5102613 Radial brake assembly for a control rod drive Apr. 7, 1992
5089211 Control rod drive Feb. 18, 1992
5034184 Speed control with end cushion for high speed air cylinder Jul. 23, 1991
5008068 Plant comprising a nuclear reactor, more particularly a control rod system for nuclear reactor plant Apr. 16, 1991
4978494 Hydraulic lock for displacer rod drive mechanism (DRDM) and method of operation Dec. 18, 1990
4904443 Control rod drive with upward removable drive internals Feb. 27, 1990
4863673 Check valve test method for control rod drive Sep. 5, 1989
4826649 Hydraulic control for rod drive for water-cooled nuclear reactors, especially heating reactors May. 2, 1989
4775506 Nuclear reactor having control clusters with hydraulic actuation Oct. 4, 1988
4752433 Vent system for displacer rod drive mechanism of pressurized water reactor and method of operation Jun. 21, 1988
4690794 System for controlling driving water for control rod driving mechanism of nuclear reactor Sep. 1, 1987
4686077 Nuclear reactor installation Aug. 11, 1987
4624826 Control rod velocity limiter Nov. 25, 1986
4550941 Hydraulic drive mechanism Nov. 5, 1985
4489036 Apparatus for measuring friction of hydraulic control rod drives in nuclear reactors Dec. 18, 1984
4349507 Drive for an absorber rod of a nuclear reactor Sep. 14, 1982
4292132 Hydraulically centered control rod Sep. 29, 1981
4138320 Fluidic self-actuating control assembly Feb. 6, 1979
4126767 Bottom actuated reactor control system Nov. 21, 1978
4092213 Control rod drives for nuclear reactors May. 30, 1978
4048010 Control rod drive for nuclear reactors Sep. 13, 1977
4030972 Fluidly driven control rod Jun. 21, 1977
3989589 Hydraulic drive for control rods Nov. 2, 1976
3957577 Hydraulic control rod May. 18, 1976
3940310 Nuclear reactor Feb. 24, 1976











 
 
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