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Class Information
Number: 376/235
Name: Induced nuclear reactions: processes, systems, and elements > With control of reactor (e.g., control of coolant flow) > By movement of control element or by release of neutron absorbing material > Means for locking control element in desired position
Description: Subject matter including means to prevent motion of the control element from a desired fixed position.










Patents under this class:

Patent Number Title Of Patent Date Issued
8571162 Control rod drive mechanism Oct. 29, 2013
6275556 Method and apparatus for preventing relative rotation of tube members in a control rod drive mechanism Aug. 14, 2001
5428651 Nuclear reactor locking piston drive system and valve assembly Jun. 27, 1995
5137682 Antieject device for control members of nuclear reactors Aug. 11, 1992
5131510 Brake assembly for a control rod drive Jul. 21, 1992
5102613 Radial brake assembly for a control rod drive Apr. 7, 1992
5085823 Latch assembly for a control rod drive Feb. 4, 1992
5076994 Lock assembly for a control rod drive Dec. 31, 1991
5069860 Rotary lock for a control rod drive Dec. 3, 1991
4978494 Hydraulic lock for displacer rod drive mechanism (DRDM) and method of operation Dec. 18, 1990
4917856 Self-latching reactivity-reducing device for use in on-site spent fuel assembly storage Apr. 17, 1990
4863673 Check valve test method for control rod drive Sep. 5, 1989
4775506 Nuclear reactor having control clusters with hydraulic actuation Oct. 4, 1988
4755346 Device for displacing and latching a cluster of control elements in a nuclear reactor Jul. 5, 1988
4753769 Device and method for retaining a linearly movable element in a nuclear reactor Jun. 28, 1988
4716008 Device for control of the core of a nuclear reactor Dec. 29, 1987
4714582 Actuating device for linearly moving a cluster of control elements in a nuclear reactor Dec. 22, 1987
4702882 Quick disconnect top nozzle for a nuclear fuel assembly Oct. 27, 1987
4683107 Method and device for replacing neutron absorber rods Jul. 28, 1987
4597934 Multi-function magnetic jack control drive mechanism Jul. 1, 1986
4576780 Releasable anti-ejection device for the control rods of a nuclear reactor Mar. 18, 1986
4544521 Actuating device for two clusters of control rods movable vertically in one and the same fuel array of the core of a nuclear reactor Oct. 1, 1985
4439054 Latching mechanism Mar. 27, 1984
4314882 Device for actuating a nuclear reactor control rod Feb. 9, 1982
4293381 Nuclear reactor having control rod holding latch Oct. 6, 1981
4173511 Control rod blow out protection system Nov. 6, 1979
4090917 Control rod ejection retardation assembly May. 23, 1978
4060452 Positioning drive for absorber rods of a nuclear reactor Nov. 29, 1977
4055463 Automatic motion inhibit system for a nuclear power generating system Oct. 25, 1977
4044622 Anti-ejection system for control rod drives Aug. 30, 1977
3941653 Control rod drive shaft latch Mar. 2, 1976
3930938 Attachment and locking of finger control rods in a nuclear reactor of BWR type Jan. 6, 1976











 
 
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