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Class Information
Number: 376/221
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 > Wherein the control element is a reflector or moderator material > Variable fluent reflector/moderator level or density
Description: Subject matter wherein a quantity of liquid, gaseous, or particulate material having the capacity to alter neutron energy or velocity relative to the quantity of fission fuel can be changed.










Sub-classes under this class:

Class Number Class Name Patents
376/222 Moderator dump 2


Patents under this class:

Patent Number Title Of Patent Date Issued
8711997 Reactor core of liquid metal cooled reactor Apr. 29, 2014
8526566 Porous nuclear fuel element with internal skeleton for high-temperature gas-cooled nuclear reactors Sep. 3, 2013
8126105 Fast reactor having reflector control system and neutron reflector thereof Feb. 28, 2012
7899146 Porous nuclear fuel element for high-temperature gas-cooled nuclear reactors Mar. 1, 2011
7864913 Fast reactor having reflector control system and neutron reflector thereof Jan. 4, 2011
7139352 Reactivity control rod for core Nov. 21, 2006
6594333 Thermal load reducing system for nuclear reactor vessel Jul. 15, 2003
6526115 Supercritical-pressure water cooled reactor and power generation plant Feb. 25, 2003
5528641 Fuel assembly Jun. 18, 1996
5200138 Spectral shift-producing subassembly for use in a nuclear fuel assembly Apr. 6, 1993
5196159 Fast reactor Mar. 23, 1993
5183628 Nuclear reactor internals with cluster guides Feb. 2, 1993
5167906 Apparatus for increasing fuel efficiency in nuclear reactors Dec. 1, 1992
5075069 Method and apparatus for increasing fuel efficiency in nuclear reactors Dec. 24, 1991
5023047 Nuclear reactor having an ascending cooling path much greater than the descending cooling path Jun. 11, 1991
4976911 Nuclear reactivity control using laser induced polarization Dec. 11, 1990
RE33030 Self rupturing gas moderator rod for a nuclear reactor Aug. 22, 1989
4728480 Apparatus and method for refurbishing a spectral shift mechanism for a nuclear reactor fuel assembly Mar. 1, 1988
4717527 Fuel assembly Jan. 5, 1988
4693862 Gas displacement spectral shift reactor and control method Sep. 15, 1987
4683103 Spectral shift apparatus and method for a nuclear reactor fuel assembly Jul. 28, 1987
4661306 Fluid moderator control system reactor internals distribution system Apr. 28, 1987
4657726 Moderator control apparatus for a nuclear reactor fuel assembly Apr. 14, 1987
4642214 Nuclear pebble bed reactor with inherent passive stabilization in the event of damage Feb. 10, 1987
4575448 Moderation of neutron energy Mar. 11, 1986
4545954 Device for shutting down a high-temperature nuclear reactor Oct. 8, 1985
4371495 Self rupturing gas moderator rod for a nuclear reactor Feb. 1, 1983
T101204 Compact fast nuclear reactor using heat pipes Nov. 3, 1981
4188795 Hydrogen-hydride absorption systems and methods for refrigeration and heat pump cycles Feb. 19, 1980











 
 
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