Patents for G21C 21 - Apparatus or processes specially adapted to the manufacture of reactors or parts thereof (1,254) |
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01/07/1992 | US5078797 Process for obtaining a plate of zr alloy comprising a portion of excess thickness and its use |
12/03/1991 | US5069865 Method of forming a gripper cavity in a fuel rod end plug |
11/27/1991 | EP0458360A1 Fuel assembly comprising a plurality of fuel rods |
11/26/1991 | US5068081 Method of inserting fuel rods into a nuclear fuel assembly grid |
10/02/1991 | EP0449479A1 Blending and loading apparatus for constituents of varying densities |
09/24/1991 | CA1289505C Apparatus for handling bodies of generally cylindrical configuration |
09/17/1991 | US5048666 Nuclear fuel pellet transfer escalator |
08/27/1991 | US5043133 Automated nuclear fuel rod pattern loading system |
07/02/1991 | US5028382 Scratch preventing method of assembling nuclear fuel bundles, and the assembly |
07/02/1991 | US5027635 Channel hot-forming apparatus |
06/18/1991 | US5024574 Random fuel pellet vacuum transfer apparatus |
06/18/1991 | US5024559 Pure tungsten carbide and cobalt alloy; nonchipping |
06/11/1991 | US5022142 Apparatus and method for loading pellets into fuel rods |
05/28/1991 | US5019326 Pellet handling and external inspection equipment |
03/26/1991 | US5002723 Nuclear fuel element |
03/19/1991 | US5001324 Precision joint tracking laser welding system |
03/05/1991 | USH897 Boron-copper neutron absorbing material and method of preparation |
02/26/1991 | CA1280773C Stack forming apparatus |
02/19/1991 | US4994231 Apparatus for blending constituents of varying densities |
02/05/1991 | US4989433 Method and means for metal sizing employing thermal expansion and contraction |
01/23/1991 | EP0409405A2 Nuclear fuel element, and method of forming same |
01/02/1991 | EP0405171A1 Random fuel pellet vacuum transfer apparatus |
01/02/1991 | EP0405170A1 End stop for welding sealing plugs of nuclear fuel rods |
12/25/1990 | US4980535 Control rod absorber section fabrication by square tube configuration and dual laser welding process |
12/25/1990 | US4980119 Multizone automated nuclear fuel rod loading system |
11/20/1990 | US4971753 Nuclear fuel element, and method of forming same |
11/20/1990 | US4971750 End stop for welding sealing plugs of nuclear fuel rods |
11/15/1990 | WO1990013898A1 Method of sealing a fuel rod by welding |
10/30/1990 | US4966745 Fuel rod gripper end cap for minimizing impact with grid cell dimples |
10/23/1990 | US4965024 Production of ceramic nuclear fuel pellets |
10/16/1990 | US4963317 Hot isostatic pressing forming diffusion bond between two ductile metal cladding plates enclosing fissionable compound |
10/10/1990 | EP0391642A2 Nuclear fuel rod loading system |
10/02/1990 | US4960559 Capture row storage tray for holding collated rows of nuclear fuel pellets |
09/11/1990 | US4956079 Apparatus for transporting objects |
09/11/1990 | CA1274022A1 Process for placing a bundle of rods of a nuclear fuel assembly into a case and installation for performing this process |
09/11/1990 | CA1273891A1 Apparatus for controlling the conveyance of articles |
09/05/1990 | EP0385719A2 Method and apparatus for metal sizing employing thermal expansion and contraction |
09/05/1990 | EP0385195A1 Nuclear fuel pellet transfer arrangement |
07/17/1990 | US4942014 Nuclear fuel pin fabrication |
05/30/1990 | EP0370303A2 Nuclear fuel rod wiping apparatus |
05/22/1990 | US4927313 Nuclear fuel pellet sintering boat unloading apparatus and method |
05/15/1990 | US4925620 Control rod absorber section fabrication by square tube configuration and dual laser welding process |
05/01/1990 | US4921663 End plug weld for nuclear fuel rod |
05/01/1990 | CA1268562A1 Device for grasping a pencil cluster in a nuclear fuel assembly |
04/04/1990 | EP0361916A2 Control rod absorber section fabrication by square tube configuration and laser welding process |
04/04/1990 | EP0361891A2 Apparatus for assembling and welding end plugs to nuclear fuel cladding tubes and inspecting the end plug welds on an automated basis |
04/04/1990 | EP0361794A1 Apparatus for loading nuclear fuel rods |
04/03/1990 | US4913177 Concurrent moving and rotation of tube; toweling |
03/21/1990 | EP0359683A1 Method for producing a neutron absorber pellet, pellet obtained and use |
03/20/1990 | US4909544 Apparatus for the transfer of granular, pulverulent or liquid materials |
01/31/1990 | EP0353170A1 Method of producing a metallic neutron absorber element, and element obtained |
01/30/1990 | US4897858 Nuclear fuel pellet collating system and method |
01/23/1990 | US4895694 Apparatus for aligning nuclear fuel pellets |
01/16/1990 | US4894848 Automated nuclear fuel rod pattern loading system |
12/27/1989 | EP0347638A2 Alloy coated nuclear fuel cladding |
12/13/1989 | EP0345499A2 End plug weld for nuclear fuel rod |
12/06/1989 | EP0344527A2 Nuclear fuel rod end plug welding apparatus and method |
12/05/1989 | CA1263526A1 Binder system for the manufacture of nuclear fuel pellets, and the method and product thereof |
11/14/1989 | US4880597 Alloy coated fuel cladding |
10/10/1989 | US4872545 Apparatus for handling bodies of generally cylindrical configuration |
09/27/1989 | EP0334069A2 Nuclear fuel pellet column collating system |
09/20/1989 | EP0211853B1 Device for sheathing fuel pellets |
09/12/1989 | US4865804 Fuel rod end plug |
08/30/1989 | EP0330354A1 Apparatus for handling elongate articles |
08/30/1989 | EP0330348A2 Apparatus for transporting objects |
08/22/1989 | US4859276 Tube flush etching, rinsing, drying, inspecting and plugging subsystem and method in a tube manufacturing system |
08/15/1989 | US4857260 Apparatus for assembling and welding end plugs to nuclear fuel cladding tubes and inspecting the end plug welds on an automated basis |
08/02/1989 | EP0325914A2 Method and apparatus for providing identification indicia on nuclear fuel rods |
07/18/1989 | US4849156 Nuclear fuel pin fabrication |
07/11/1989 | US4847038 Procedure for complete replacement of a steam generator of a pressurized water nuclear reactor |
07/05/1989 | EP0322600A2 Gage and method for determining bulge orientation at a bulge joint between a grid sleeve and a guide thimble of a nuclear fuel assembly |
06/27/1989 | US4842808 Nuclear fuel pellet collating system |
06/06/1989 | US4837419 Fuel rod end plug welding apparatus and method |
05/23/1989 | CA1254378A1 Fabrication of nuclear fuel pellets |
05/16/1989 | US4830565 Robot gripper mechanism and method for sampling nuclear fuel pellets |
05/02/1989 | US4826630 Burnable neutron absorbers |
04/26/1989 | EP0313257A2 Production of ceramic nuclear fuel pellets |
04/25/1989 | US4824634 Coating on zirconium-tin alloy cladding tube |
04/18/1989 | US4822987 Method and apparatus for providing fuel rod identification to permit traceability during manufacture and use |
04/18/1989 | CA1252749A1 Dump assembly |
02/28/1989 | US4807734 Pellet-press-to-sintering-boat nuclear fuel pellet loading apparatus |
02/14/1989 | US4804077 Tube end processing system |
02/07/1989 | US4803041 Process for the recycling of nuclear fuel pellets previously irradiated in a fast neutron nuclear reactor |
01/25/1989 | EP0300246A2 A pellet-press-to-sintering-boat nuclear fuel pellet loading apparatus |
01/24/1989 | US4800061 Apparatus for loading fuel rods into grids of nuclear fuel assemblies |
01/11/1989 | EP0298859A1 Device for the transfer of bulk materials or liquids |
01/11/1989 | EP0298596A2 Nuclear fuel pin fabrication |
01/10/1989 | US4797248 Gripping apparatus for a group of rods of nuclear fuel assembly |
01/03/1989 | US4795341 Method and tunnel furnace for sintering blanks |
12/27/1988 | US4793962 Process for placing a bundle of rods of a nuclear fuel assembly into a case and installation for performing this process |
12/07/1988 | EP0294070A2 Apparatus for handling bodies of generally cylindrical configuration |
11/30/1988 | EP0292716A2 Tube end processing system |
11/29/1988 | US4788026 Nuclear fuel assembly grid sleeve/guide thimble bulge orientation gage and inspection method |
11/22/1988 | CA1245182A1 Apparatus for coating nuclear fuel pellets with a burnable absorber |
11/09/1988 | EP0289732A2 Reconstitutable nuclear fuel assembly |
11/02/1988 | EP0289388A1 Method for the integral replacement of a steam generator by a pressurized-water nuclear reactor |
10/05/1988 | EP0284814A2 Nuclear fuel rod loader for pulling fuel rods into a fuel assembly skeleton |
09/20/1988 | US4772446 Gripper assembly for inserting and removing burnable absorber rods and thimble plugs in a nuclear reactor fuel assembly |
09/13/1988 | US4770847 Control of differential growth in nuclear reactor components by control of metallurgical conditions |
08/23/1988 | US4765453 Pellet-press-to-sintering-boat nuclear fuel pellet loading system |