Patents for G21C 7 - Control of nuclear reaction (2,764) |
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02/21/1995 | US5392326 Boiling water reactor |
02/21/1995 | US5392321 Method and system for magnetic coupling compensating a rod position indication system |
01/31/1995 | US5386439 Rods of depleted uranium and thorium |
01/26/1995 | DE4423128A1 Reactor core for a boiling water nuclear reactor |
01/03/1995 | US5378064 Control rod driving system |
12/27/1994 | US5377235 Control rod canopy seal positioning and welding system |
12/21/1994 | CN1027109C Nuclear reactor intervals with eluster guides |
12/13/1994 | US5373539 Safety system grade apparatus and method for detecting a dropped control rod and malfunctioning exit thermocouples in a pressurized water reactor |
12/08/1994 | WO1994028556A1 Neutron absorber material and method of manufacture |
12/08/1994 | WO1994028185A1 Hafnium alloys as neutron absorbers |
12/08/1994 | DE4418500A1 Fuel element for a boiling water reactor |
12/08/1994 | CA2140556A1 Neutron-absorbing material and its production process |
12/07/1994 | CN1096128A Slotted hydraulic step-by-step cylinder for control rods of reactors |
11/30/1994 | EP0626698A1 Safety grade apparatus and method for detecting a dropped rod and malfunctioning exit thermocouples in a pressurized water reactor |
11/23/1994 | CN1026735C Combined valve for reactor control rod hydraulic driving system |
11/17/1994 | EP0624883A1 Sealing process and device for a feedthrough tube in a convex wall of a nuclear reactor component |
11/13/1994 | CA2123381A1 Process and device for fixedly sealing pipes through bulged walls of a nuclear reactor component |
11/08/1994 | US5363421 Control rod guide tube |
11/01/1994 | US5361279 Internal control rod drive for a BWR |
10/05/1994 | CN1093195A Internal equipment for a nuclear reactor having control cluster guides |
09/27/1994 | US5350542 Separation of troublesome isotopes from erbium and gadolinium isotope mixtures |
09/22/1994 | DE4308612A1 Aluminium-alloy contg. boron and process for mfr. thereof |
09/13/1994 | US5347550 Core of light-water reactor |
08/03/1994 | CN1090265A Process for the preparation of trifluorobenzene derivatives |
07/26/1994 | US5333160 Control rod position transmitter |
07/19/1994 | US5330589 Hafnium alloys as neutron absorbers |
07/12/1994 | US5329563 Control rod latch tool |
07/12/1994 | US5327930 Nuclear reactor locking piston drive system and valve assembly |
07/07/1994 | WO1994014993A1 Manufacture of materials and workpieces for components in nuclear plant applications |
07/07/1994 | CA2149666A1 Manufacture of materials and workpieces for components in nuclear plant applications |
06/23/1994 | WO1994014164A1 Wear resistant coating for components of fuel assemblies and control assemblies and method of applying a wear resistant coating |
06/21/1994 | US5323435 Control rod housing support bars with wing assemblies |
06/15/1994 | CN1025087C Hole-alignment type hydraulic step cylinder for reactor control rod driving |
06/14/1994 | US5321732 Control rod housing support bars with radiation shields |
05/31/1994 | US5317606 Automation system for nuclear power plants |
05/24/1994 | US5315626 Continuously feeding hydrazine hydrate into cooling medium which also contains potassium and/or lithium hydroxides; controlling efficiency by controlling boric acid concentration |
05/11/1994 | EP0596754A2 Nuclear reactor hydraulic control rod drive with locking piston system and valve assembly |
04/27/1994 | EP0594381A1 Control blade servicing assembly |
04/27/1994 | EP0593470A1 Material and workpiece for nuclear engineering and production thereof |
04/27/1994 | EP0593469A1 Material and workpiece for nuclear engineering and production thereof |
04/26/1994 | US5307391 Method for treatment of primary coolant medium of a pressurized water nuclear reactor |
04/26/1994 | US5307384 Segmented coil assembly for control rod drive |
04/20/1994 | EP0593295A1 Control rod spacer pad |
04/19/1994 | US5305358 Control rod drive handling equipment |
04/13/1994 | EP0592296A1 Nuclear reactor internals with control rod guides |
04/13/1994 | EP0592289A1 Nuclear reactor internals with support columns and control cluster guides |
04/05/1994 | US5301216 Method of operating a nuclear reactor with emergency cooling system economy |
03/29/1994 | US5299242 Dual annular rotating "windowed" nuclear reflector reactor control system |
03/22/1994 | US5297174 Safety system grade apparatus and method for detecting a dropped control rod and malfunctioning exit thermocouples in a pressurized water reactor |
03/09/1994 | EP0585499A1 Low pressure coolant injection modification for boiling water reactors |
03/08/1994 | US5293411 Nuclear reactor power control method and device |
03/03/1994 | WO1994005014A1 Nuclear reactor element, composed of combined fuel and absorber elements, which acts as a control column |
03/03/1994 | WO1994005013A1 Control column consisting of a fuel element and an absorber element for a nuclear reactor |
03/03/1994 | DE4229091A1 Inherently safe reactivity control mechanism for nuclear reactors - dependent upon maintenance of 0.5 - 1 percent of the reactivity producing fuel suspended in a diverted part of the main coolant flow |
03/01/1994 | US5291530 Drawing refueling fluid; displacement with replacement solution |
02/24/1994 | DE4227794A1 Kernreaktorelement, insbesondere Absorberelement Nuclear reactor element, in particular absorber element |
02/24/1994 | DE4227793A1 Steuersäule aus einem Brennelement und einem Absorberelement für einen Kernreaktor Control column of a fuel element and an absorber element for a nuclear reactor |
02/19/1994 | CA2099324A1 Fuel bundle for a heavy-water moderated thermal breeder |
02/16/1994 | EP0583187A1 Inspection device for the guiding components of a guide tube in the upper internals of a pressurized water nuclear reactor |
02/10/1994 | DE4323550A1 Process to alter neutron energy spectrum in a light water reactor - by use of trans=plutonium elements within energy spectrum altering rods that can be inserted into or withdrawn from core |
01/25/1994 | US5282232 Nuclear reactor upper internal equipment with cluster guide devices |
01/19/1994 | CN1023581C Control assembly with changeable units for nuclear reactor |
01/04/1994 | US5276719 Hydraulic control rod drive for a nuclear reactor |
01/04/1994 | US5276718 Control blade for nuclear reactor |
12/28/1993 | US5273709 Reacting a consolidated and densified mixture of gadolinium or alloys, boron carbide and gadolinium oxide |
12/21/1993 | US5272733 Control rod driving system |
12/15/1993 | EP0574193A1 Core-control assembly with a fixed fuel support |
12/14/1993 | US5271052 Enriched boron-10 boric acid control system for a nuclear reactor plant |
12/07/1993 | US5268941 Control rod canopy seal positioning and welding system |
11/30/1993 | US5267290 Zirconium alloy absorber layer |
11/30/1993 | US5267286 Fuel assembly and reactor core |
11/30/1993 | US5267284 Zirconium alloy containing isotopic erbium |
11/11/1993 | WO1993022771A1 Fuel element with displacement elements |
10/20/1993 | EP0566396A2 Method of manufacturing neutron-shielding tubes and neutron shielding tubes obtained by the same |
10/14/1993 | DE4212284A1 An automatic shut=down device for nuclear, esp. sodium cooled, reactors - based on an expansion device driven by coolant temperature rises |
10/06/1993 | CN1022356C Method of renovating the control system for controlling control clusters in unclear reactor, and corresponding control system |
10/06/1993 | CN1022355C Centering and fixation device for a cluster guide flange of a core plate of a nuclear reactor |
10/05/1993 | US5250231 Selectively removing a naturally occuring isotope, e.g.erbium 166, having a mass one less than a second naturally occuring isotope, erbium 167 and having a lower thermal nuclear cross-section |
09/28/1993 | US5249209 Control rod canopy seal positioning and welding system |
09/28/1993 | US5249207 Apparatus for monitoring the neutron flux of a nuclear reactor |
09/21/1993 | US5247549 Control rod spacer pad |
09/21/1993 | US5247545 Control blade servicing assembly |
09/07/1993 | US5242622 Hafnium and boron carbide |
08/31/1993 | US5241570 Core-control assembly with a fixed fuel support |
08/17/1993 | US5237595 Guide plate for guide tubes used in nuclear reactors |
08/03/1993 | US5232656 Fast-acting nuclear reactor control device |
07/20/1993 | US5229066 Control rod position indication system |
07/13/1993 | US5227128 Reactivity controlled fuel assembly |
07/06/1993 | US5225151 Control rod for nuclear reactors |
07/06/1993 | CA1320012C Reactor control system verification |
06/30/1993 | CN1073797A Combination valve for hydraulic driving system of reactor control rod |
06/09/1993 | EP0545866A1 Process for the preparation of trifluorobenzol derivatives |
06/09/1993 | CN1021161C Upper internal nclear reactor equipments including flow seperation device |
06/09/1993 | CN1021160C Power control method and apparatus for natural circulating reactors |
06/08/1993 | US5217678 Gang control-rod controlling system and reactor operation method |
06/08/1993 | US5217677 Control rod drive assembly |
06/07/1993 | CA2084587A1 Process for the preparation of trifluorobenzene derivatives |
06/02/1993 | EP0544506A1 Nuclear reactor with low-level core coolant intake |
05/25/1993 | US5213756 Boiling water reactor with expanded core diameter |
05/25/1993 | US5213755 Low pressure coolant injection modification for boiling water reactors |