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Class Information
Number: 376/207
Name: Induced nuclear reactions: processes, systems, and elements > With control of reactor (e.g., control of coolant flow)
Description: Subject matter for changing (including "shut down") or maintaining constant the fission reaction rate or power output of a nuclear fission reactor.

Sub-classes under this class:

Class Number Class Name Patents
376/212 By altering quantity of characteristic of fuel within critical area 14
376/210 By coolant flow 103
376/215 By electronic signal processing circuitry (e.g., plural redundant circuits) 129
376/219 By movement of control element or by release of neutron absorbing material 95
376/242 Means to inhibit control rod movement 44
376/241 Power output control (e.g., load follows with steam dump) 58
376/208 Pulsed reactors 10
376/214 Reactor start-up 37
376/240 Sensing or detecting device attached to, embedded in, or integral with control element 18
376/209 Spectral shift 54
376/244 Temperature reactivity control 17
376/243 With cooling of control element 20

Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8711997 Reactor core of liquid metal cooled reactor Apr. 29, 2014
8711998 Cooling structure and cooling method for control rod drive mechanism and nuclear reactor Apr. 29, 2014
8705682 Feedwater temperature control methods and systems Apr. 22, 2014
8670515 Digital nuclear control rod control system Mar. 11, 2014
8625733 Neutron source assembly Jan. 7, 2014
8599991 Boiling water reactor, core of boiling water reactor and fuel assembly Dec. 3, 2013
8571162 Control rod drive mechanism Oct. 29, 2013
8553829 Reduced order stress model for online maneuvering, diagnostics of fuel failure and design of core loading patterns of light water reactors Oct. 8, 2013
8532245 Core shroud corner joints Sep. 10, 2013
8477899 Method for operating a reactor of a nuclear plant Jul. 2, 2013
8433029 Determination of safety limit minimum critical power ratio Apr. 30, 2013
8416908 Nuclear reactor control method and apparatus Apr. 9, 2013
8318102 Process for increasing the efficiency of heat removal from a Fischer-Tropsch slurry reactor Nov. 27, 2012
8249840 Diversity and defense-in-depth simulation apparatus Aug. 21, 2012
8009788 Monitoring method and monitoring program for boiling water reactor, and acoustic damping method for boiling water reactor Aug. 30, 2011
7945011 Enhanced steam dump (bypass) control system May. 17, 2011
7773716 Fast reactor having reflector control system and neutron reflector thereof Aug. 10, 2010
7742555 Enhanced steam dump (bypass) control system Jun. 22, 2010
7627073 Method for designing a nuclear fuel assembly with damping guide tube Dec. 1, 2009
7447291 Nuclear reactor and means for inserting liquid neutron absorber into the core Nov. 4, 2008
7333584 Nuclear power plant and operation method thereof Feb. 19, 2008
7257185 Fuel assembly and thimble screw of the same Aug. 14, 2007
7222061 Method and arrangement for developing rod patterns in nuclear reactors May. 22, 2007
7002443 Method and apparatus for cooling magnetic circuit elements Feb. 21, 2006
6938584 Feedwater control system considering pressure drop of feedwater control valve in nuclear power plant and control method therefor Sep. 6, 2005
6925138 Reactor core and method for operating nuclear reactor Aug. 2, 2005
6882696 Control rod for boiling water reactor and method for manufacturing the same Apr. 19, 2005
6873671 Reactor manual control system Mar. 29, 2005
6862329 In-cycle shuffle Mar. 1, 2005
6853930 System for aiding the preparation of operation and maintenance plans for a power generation installation Feb. 8, 2005
6795801 Apparatus and method for analyzing anisotropic particle scattering in three-dimensional geometries Sep. 21, 2004
6721383 Maximum extended load line limit analysis for a boiling water nuclear reactor Apr. 13, 2004
6691065 System foraiding the preparation of operation and maintenance plans for a power generation installation Feb. 10, 2004
6674831 Fuel assembly and thimble screw of the same Jan. 6, 2004
6631176 Fuel assembly Oct. 7, 2003
6611572 Determination of operating limit minimum critical power ratio Aug. 26, 2003
6246741 Fuel assembly Jun. 12, 2001
6198786 Methods of reactor system pressure control by reactor core power modulation Mar. 6, 2001
5061435 High-temperature reactor Oct. 29, 1991
4871508 Method for operation of a light water boiling reactor Oct. 3, 1989
4694693 Check valve test method using truncated accumulator blowdown Sep. 22, 1987
4495140 Permanent deactivation of nuclear reactor Jan. 22, 1985
4421716 Safety monitoring and reactor transient interpreter Dec. 20, 1983
4170516 Method of operating a nuclear reactor Oct. 9, 1979
4166762 Control apparatus with frequency-dependent control elements and application of the control apparatus to regulating the steam pressure of boiling water reactors Sep. 4, 1979
4153506 Method of starting operation of a nuclear reactor May. 8, 1979
4096030 Control system for a boiling-water nuclear power plant Jun. 20, 1978
4093514 Method of bringing nuclear power plant to fractional electrical load conditions Jun. 6, 1978
4088182 Temperature control system for a J-module heat exchanger May. 9, 1978
4057466 Conditioning of nuclear reactor fuel Nov. 8, 1977

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