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Class Information
Number: 376/214
Name: Induced nuclear reactions: processes, systems, and elements > With control of reactor (e.g., control of coolant flow) > Reactor start-up
Description: Subject matter wherein the fission rate is manipulated to achieve a critical condition having at least as many neutrons produced by fission as their are fissions, i.e., self-sustaining fission reaction.

Patents under this class:

Patent Number Title Of Patent Date Issued
8625733 Neutron source assembly Jan. 7, 2014
8526562 Reactor power control apparatus of natural circulation reactor, generation system of natural circulation reactor and method for controlling reactor power of natural circulation reactor Sep. 3, 2013
7945011 Enhanced steam dump (bypass) control system May. 17, 2011
7876872 Reactor power control apparatus of natural circulation reactor and method for controlling reactor power of natural circulation reactor Jan. 25, 2011
7742555 Enhanced steam dump (bypass) control system Jun. 22, 2010
7532698 Systems and methods of predicting a critical effective k for a nuclear reactor May. 12, 2009
6873671 Reactor manual control system Mar. 29, 2005
6687323 Method for starting up and monitoring an apparatus for controlling a boiling water nuclear reactor Feb. 3, 2004
6608878 Method and device for monitoring the power rise during startup of a nuclear reactor (diversitary excursion monitoring) Aug. 19, 2003
6181759 Method and apparatus for determining nearness to criticality of a nuclear fueled electric power generating unit Jan. 30, 2001
5491731 Method and system for maintaining pressure in a nuclear power plant primary loop during startup or shutdown Feb. 13, 1996
5271044 Boiling water nuclear reactor and start-up process thereof Dec. 14, 1993
5019322 Gas cooled nuclear reactor with a pebble bed of spherical operating elements May. 28, 1991
4949363 Bottom supported liquid metal nuclear reactor Aug. 14, 1990
4800952 Thaw flow control for liquid heat transport systems Jan. 31, 1989
4783306 Method and device for passive transfer of heat from nuclear reactors to a public utility network, with automatic regulation of reactor power and automatic emergency shutdown and switchover to Nov. 8, 1988
4734249 Nuclear reactor start-up method Mar. 29, 1988
4695423 Method for loading, operating, and unloading a ball-bed nuclear reactor Sep. 22, 1987
4694693 Check valve test method using truncated accumulator blowdown Sep. 22, 1987
4678618 Individual source positioning mechanism for a nuclear reactor fuel assembly Jul. 7, 1987
4674285 Start-up control system and vessel for LMFBR Jun. 23, 1987
4656335 Start-up control system and vessel for LMFBR Apr. 7, 1987
4608224 Nuclear reactor cooled by a liquid metal Aug. 26, 1986
4588547 Method and apparatus for determining the nearness to criticality of a nuclear reactor May. 13, 1986
4563746 Method of operating power plants Jan. 7, 1986
4533514 Nuclear reactor degassing method and degassing system Aug. 6, 1985
4400343 System and method for controlling operation of boiling water reactor Aug. 23, 1983
4359627 Preheater mounted within a well Nov. 16, 1982
4343682 Plant having feed water heating means for nuclear units during plant start up and method of operating the same Aug. 10, 1982
4293382 Method of starting up a nuclear reactor Oct. 6, 1981
4160956 Nuclear-pumped uranyl salt laser Jul. 10, 1979
4153506 Method of starting operation of a nuclear reactor May. 8, 1979
4104117 Nuclear reactor power generation Aug. 1, 1978
4093514 Method of bringing nuclear power plant to fractional electrical load conditions Jun. 6, 1978
4087985 Apparatus and method for thermal power generation May. 9, 1978
4077836 Apparatus for automatically starting up nuclear reactor Mar. 7, 1978
3974029 Nuclear reactors with auxiliary boiler circuit Aug. 10, 1976

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