Patents
Patents for G21C 7 - Control of nuclear reaction (2,764)
05/1987
05/05/1987US4663576 Automatic controller for magnetic jack type control rod drive mechanism
04/1987
04/28/1987US4661307 For controlling reactor control rods
04/28/1987US4661306 Spectral shift pressurized water reactor
04/22/1987EP0219412A1 Device for locking a guide ring onto a plate comprising a hole and its use in a guide tube of a nuclear reactor
04/15/1987CN85107286A Soluble burnable absorber rod for a nuclear reactor
04/14/1987US4657726 Moderator control apparatus for a nuclear reactor fuel assembly
04/14/1987US4656734 Apparatus for replacement of guide pins of a guiding tube forming part of the top internal equipment of a pressurized water nuclear reactor
04/08/1987CN85106168A Improved boiling water reactor control rod
04/07/1987US4656000 Greater coolant flow rate through core
04/07/1987US4655999 Hafnium sheet between sheath and neutron absorber
04/07/1987US4655990 Fuel assemblies for nuclear reactors
04/07/1987US4655989 Fast breeder
04/02/1987DE3534902A1 Water displacing member
04/02/1987DE3534074A1 Method for driving an absorber rod and device for carrying out the method
04/01/1987EP0216665A1 Absorbing element for a fast neutrons nuclear reactor
04/01/1987CN86104957A Full length control rod employing axially inhomogeneous absorber materials for zero reactivity redistribution factor
03/1987
03/31/1987CA1219976A1 Operation of a light water moderated and cooled nuclear reactor
03/26/1987DE3532797A1 Process for operating a nuclear reactor
03/24/1987US4652427 Nuclear reactors
03/24/1987US4652424 Extended life nuclear control rod
03/10/1987US4649020 Nuclear fuel assembly and nuclear reactor operating process comprising application thereof
03/04/1987EP0212920A2 Full length control rod employing axially inhomogeneous absorber materials for zero reactivity redistribution factor
03/04/1987EP0212525A2 Transient monitor for nuclear reactor
03/03/1987US4647421 Load follow-up system with load variation
02/1987
02/25/1987EP0211108A1 Retractable cable carrier
02/25/1987CN85106055A Control rod end plug with a stabilizng configuration
02/25/1987CN85106011A Control rod for nuclear reactor
02/24/1987US4645643 Adherent coatings or sleeves on guide tubes
02/18/1987CN86101049A Apparatus and method for refurbishing a spectral shift mechanism for a nuclear reactor fuel assembly
02/10/1987US4642216 Control rod cluster arrangement
02/10/1987US4642213 Anticipatory control of xenon in a pressurized water reactor
02/03/1987US4640813 Soluble burnable absorber rod for a nuclear reactor
02/03/1987US4640811 Apparatus with linear movement
01/1987
01/28/1987CN85105559A Neuclear reactor control rods for reducing end reactivity equivalent
01/20/1987US4637914 Quick release guide sleeve assembly
01/20/1987US4637911 Apparatus and method for closed-loop control of reactor power
01/15/1987DE3524198A1 Nuclear reactor with a cooling liquid
01/13/1987US4636352 Gadolinium and uranium oxide ceramic wafers
01/13/1987US4636350 Process for the control and shutdown of a gas-cooled reactor
01/06/1987US4634767 Method for preparing spiro(indoline)-type photochromic compounds
01/02/1987DE3522577A1 Control rod drive for a nuclear reactor
12/1986
12/31/1986CN85105161A Fluid moderator control system-d2o/h2o
12/30/1986US4632803 Operating method of boiling water reactor
12/30/1986EP0206877A1 Spectral shift pressurized-water nuclear reactor
12/23/1986US4631165 Boiling water reactor control rod
12/16/1986US4629599 Burnable absorber arrangement for fuel bundle
12/10/1986EP0204096A1 The hydraulic step cylinder of orifice type used for driving of the control rod on reactor
12/02/1986US4626404 Sealable hollow elongated tubes of zirconium diboride
11/1986
11/25/1986US4624827 Nuclear reactor control rod having a reduced worth tip
11/25/1986US4624826 Control rod velocity limiter
11/25/1986US4624825 Differential movement chain mechanism for controlling a nuclear reactor
11/19/1986CN86100039A Underground low-power pivoted reactor in flawless cylindrical pressure vessel
11/18/1986CA1214290A1 Device for controlling the vertical movement of two regulating rod clusters in a nuclear reactor core fuel assembly
11/12/1986EP0200999A1 Controlling a nuclear reactor with dropped control rods
10/1986
10/28/1986CA1213380A1 Operation control method for nuclear reactor
10/21/1986US4618471 For vertical displacement of control rods of nuclear reactor
10/08/1986EP0196655A1 Fuel assembly for nuclear reactor
09/1986
09/30/1986US4614724 Polycrystalline sintered compacts based on europium hexaboride and process for their manufacture
09/24/1986EP0195686A1 Nuclear reactor
09/17/1986CN86101773A 核反应堆 Nuclear reactor
09/17/1986CN86101081A Spectral shift apparatus and method for a nuclear reactor fuel assembly
09/17/1986CN86100717A Flow limiting head adapter extension
09/09/1986US4610893 Method of manufacturing an absorber plate for a boiling water reactor
09/02/1986US4609524 Helium containing oxygen carbon monoxide or carbon dioxide, tritium-impervious oxide layer
09/02/1986US4609522 Mechanical drive system for moving fuel
09/02/1986US4609521 Complementary shutdown device for an undermoderated nuclear reactor
08/1986
08/26/1986CA1210532A1 Reactor power peaking information display
08/20/1986EP0191685A1 Electromagnetic control rod drive with reduced thermal losses
08/20/1986EP0191430A2 Apparatus and method for refurbishing a spectral shift apparatus for a nuclear reactor fuel assembly
08/20/1986EP0191429A2 Spectral shift apparatus and method for a nuclear reactor fuel assembly
08/20/1986EP0191364A2 Flow limiting reactor head adapter extension
08/19/1986US4606881 Upper internal equipment of a pressurized water nuclear reactor
08/19/1986US4606109 Element immersed in coolant of nuclear reactor
08/13/1986EP0190967A1 Control rod drive and latching mechanism for a liquid-cooled nuclear reactor
08/13/1986CN85108291A Improved water displacer rod with hollow annular support pellets having sealed internal voids
08/13/1986CN85108227A Modular radial neutron reflector
08/12/1986US4605530 Scramming control rods in accord with type of power failure
08/06/1986EP0190072A2 Fast-neutrons nuclear reactor core with a single type of nuclear-fuel assemblies
08/06/1986EP0189718A1 Hanging device and method for the manipulation rod of a control cluster in a nuclear reactor
08/06/1986CN85109308A Improved gray rod for a nuclear reactor
07/1986
07/30/1986EP0188918A1 Controlling the response of a pressurized water reactor to rapid fluctuations in load.
07/23/1986EP0188163A1 Displacement and holding device for a cluster of control rods of a nuclear reactor
07/23/1986EP0187928A2 Coating for structural elements of nuclear energy plants
07/22/1986US4601872 Maintaining water at normal level
07/16/1986EP0187605A1 Control rod cluster displacement device for a nuclear reactor
07/16/1986CN85108160A Preventing the overpressurization in a pwr in the event of loss of main feedwate
07/01/1986US4597935 Nuclear reactor having a control cluster guide
07/01/1986US4597934 Multi-function magnetic jack control drive mechanism
06/1986
06/25/1986EP0185455A1 Method of controlling a PWR so as to prevent overpressurization in the event of feedwater loss
06/11/1986EP0184345A1 Modular radial neutron reflector
06/04/1986EP0183069A1 Water displacer rod for use in a spectral shift nuclear reactor
05/1986
05/27/1986US4591479 Boiling water reactor fuel bundle
05/06/1986US4587090 Fuel assembly for boiling water reactor
05/06/1986US4587088 Sputtering
05/06/1986US4587087 Burnable absorber coated nuclear fuel
05/06/1986US4587085 Nuclear reactor safety device
05/06/1986US4587084 Control rod drive
04/1986
04/29/1986US4585613 Process for the replacement of guide pins of a guiding tube forming part of the top internal equipment of a pressurized water nuclear reactor, and corresponding apparatus
04/23/1986EP0178604A1 Fast breeder reactor
04/22/1986US4584168 Cylindrical extension of guide tube to stabilize 3:0
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