Patents
Patents for G21C 21 - Apparatus or processes specially adapted to the manufacture of reactors or parts thereof (1,254)
10/1994
10/04/1994US5353317 Shipping shim for nuclear reactor fuel assemblies
10/04/1994US5352112 Rotary press
09/1994
09/29/1994DE4409385A1 Fuel arrangement and method for producing water rods
09/06/1994US5345488 Nuclear fuel rod having concave weld across pressurization hole in end plug
08/1994
08/31/1994EP0471770B1 Method of sealing a fuel rod by welding
07/1994
07/26/1994US5333161 Intergranular stress corrosion cracking mitigation by rapid quench melting
07/20/1994EP0606975A1 Apparatus for protecting fuel rods during loading
07/19/1994US5331676 Calibration fixture for induction furnace
07/07/1994WO1994015343A1 Manufacture of zirconium cladding tube with internal liner
06/1994
06/28/1994US5325409 Fuel rod guiding apparatus and method therefor
06/22/1994EP0603037A1 Dusting arrangement for nuclear fuel pellets
06/21/1994US5323433 Apparatus for arranging short cylindrical bodies
06/21/1994US5323432 Apparatus for assembling fuel rods
06/09/1994WO1994012307A1 Method of manufacturing a filter plate for the foot of a nuclear-fuel element, and a fuel element fitted with such a filter plate
06/07/1994US5319684 Method for assembling nuclear fuel assembly and apparatus therefor
05/1994
05/31/1994US5317610 Prevent reduction in wall thickness
05/31/1994US5317609 Method and apparatus for installing fuel rods in a nuclear fuel assembly skeleton
05/17/1994US5313507 Apparatus for attaching key member to nuclear fuel assembly grid and detaching same therefrom
05/17/1994US5313505 Rod handling apparatus
04/1994
04/27/1994EP0594416A1 Apparatus for removing keys from support grid
04/27/1994EP0594415A1 Apparatus for removing keys from a support grid a of nuclear fuel assembly
04/27/1994EP0593470A1 Material and workpiece for nuclear engineering and production thereof
04/27/1994EP0593469A1 Material and workpiece for nuclear engineering and production thereof
04/20/1994EP0593156A1 Installation for handling, arranging and sorting short cylindrical bodies, such as nuclear fuel pellets
04/19/1994US5305359 Heat treatment to transform crystal structure, quenching, thermal sizing and cooling
04/19/1994US5304261 Heat treatment, quenching, nonstress thinning, bending and welding
04/12/1994US5303277 Process for fabricating fuel rod and end plug therefor
04/12/1994US5303273 Apparatus for assembling nuclear fuel assembly
04/12/1994US5303272 Apparatus for operating the grid springs of nuclear fuel assembly
04/05/1994US5301214 Assembling apparatus for nuclear fuel assembly
03/1994
03/23/1994EP0587926A1 Fuel rod for nuclear reactor and welding device for its manufacture
03/22/1994US5297175 Assembling machine for nuclear fuel assembly
03/22/1994CA2038870C Apparatus for blending constituents of varying densities
03/02/1994EP0585045A1 Nuclear fuel pellet loading system
02/1994
02/22/1994US5289515 Assembly method and grid for nuclear fuel assembly
02/22/1994US5289513 Method of making a fuel assembly lattice member and the lattice member made by such method
01/1994
01/18/1994US5280507 Method and apparatus for sensing obstructions in a nuclear fuel rod
12/1993
12/28/1993US5274684 Apparatus for assembling a nuclear fuel assembly
12/21/1993US5272743 Key member for use in insertion or removal of a fuel rod of a nuclear fuel assembly grid
12/08/1993EP0573202A1 Nuclear fuel rod end plug pressurization hole inspection apparatus
12/07/1993US5267381 For inspecting a face of a tube
11/1993
11/30/1993US5267289 Ion implantation of nuclear fuel assembly components using cathodic vacuum arc source
11/16/1993US5263065 Apparatus for holding grid springs
11/03/1993CN1078064A A method and apparatus for installing fuel rods in a nuclear fuel assembly skeleton
10/1993
10/28/1993DE4213180A1 Optical inspection of tablets esp. nuclear fuel pellets
10/27/1993EP0567278A1 Mandrel loading method and apparatus in a thermal sizing-annealing process
10/20/1993EP0566396A2 Method of manufacturing neutron-shielding tubes and neutron shielding tubes obtained by the same
10/12/1993US5253278 Fuel assembly, channel box, production method of channel box, and core of nuclear reactor
10/05/1993US5251247 After pressurization with helium
10/05/1993US5251244 Nuclear fuel pellet loading system
09/1993
09/14/1993US5245640 Nuclear fuel rod end plug pressurization hole inspection apparatus
09/07/1993US5242631 Forming liquid sol of rare earth metal oxide in which zirconium diboride is suspended, applying to surface, baking
09/07/1993US5242622 Hafnium and boron carbide
08/1993
08/03/1993US5231863 Mandrel loading method and apparatus in a thermal sizing-annealing process
07/1993
07/27/1993US5231261 Equipment and unit for welding by laser, fuel rods or the like
07/21/1993EP0551770A1 Method for coating nuclear fuel pellets
06/1993
06/22/1993CA1319449C Apparatus for assembling and welding end plugs to nuclear fuel cladding tubes and inspecting the end plug welds on an automated basis
05/1993
05/18/1993US5211964 Press machine with means to adjust punching force
05/18/1993US5211905 Uniform microstructure
05/04/1993US5207976 Pellet slide and inspection assembly in a nuclear fuel pellet surface defect inspection apparatus
04/1993
04/20/1993US5204052 Nuclear fuel rod accumulation machine
03/1993
03/31/1993EP0534065A1 Application of frequency analysis to determine fuel pellet characteristics and acceptance
03/30/1993US5198182 Production of neutron-shielding tubes
03/23/1993US5196160 Nuclear reactor head and process for obtaining same
03/10/1993EP0531132A1 Nuclear fuel rod selection and accumulation machine
03/10/1993EP0530636A1 Device for mechanically treating powder especially nuclear combustion powder
03/09/1993US5192846 Equipment for drilling and/or closing off by laser the seal weld hole of a fuel rod
03/02/1993US5191185 Girth and seal welding apparatus
02/1993
02/24/1993EP0528197A1 Method and device for the inspection of tablets
02/10/1993EP0526808A1 Method and device for transporting of powder
02/10/1993EP0526806A1 Method and device for conveying of powder from a distributing station to a collecting station
02/10/1993EP0526805A1 Device with diversions for powder transporting
01/1993
01/28/1993DE4124278A1 Inspecting tablets esp. nuclear fuel pellets - by passing individual rotating tablets through laser and linear camera fields
01/27/1993EP0524332A1 Nuclear reactor fuel rod and method of treating a welding bead
01/21/1993WO1993001319A1 Material and workpiece for nuclear engineering and production thereof
01/21/1993WO1993001318A1 Material and workpiece for nuclear engineering and production thereof
01/20/1993EP0523914A1 Method of fabricating a channel box or other part for a nuclear reactor
12/1992
12/29/1992US5174947 Nuclear fuel pellet turning apparatus and method
10/1992
10/28/1992EP0511035A1 Device for thermal electric and nuclear power plants
10/27/1992US5159174 Nonconsumable electrode for stainless steel welding and method of welding
10/27/1992US5158740 Fuel rod end plug welding method
10/10/1992CA2061667A1 Rotary press
09/1992
09/23/1992EP0505258A1 Apparatus for cleaning nuclear reactor fuel rods ends
09/15/1992US5147047 For surface defects
09/15/1992US5146676 Hand-actuated spring clip insertion tool
07/1992
07/22/1992CN1062862A Apparatus for welding structural components of nuclear fuel assembly
07/21/1992US5132078 Diagrid for a nuclear reactor core
07/01/1992CN1062313A Equipment and unit for welding by laser fuel rods or like
06/1992
06/17/1992EP0490127A1 Method of forming a gripper cavity in a fuel rod end plug
06/16/1992US5122331 Pellet stacking machine
06/02/1992US5118468 Nuclear reactors, compressed hafnium crystals
05/1992
05/27/1992CN1061370A Equipment for drilling and/or closing off by laser the seal weld hole of fuel rod
05/06/1992EP0483724A2 Nonconsumable electrode for stainless steel welding and method of welding
05/02/1992CA2054646A1 Nonconsumable electrode for stainless steel welding and method of welding
04/1992
04/15/1992EP0480793A1 Equipment and installation for laser welding of fuel rods or similar
04/15/1992EP0480792A1 Equipment for laser drilling and/or sealing fuel rod exhaust tip hole
04/14/1992US5104609 Assembly method for nuclear fuel assembly
03/1992
03/11/1992EP0474457A1 Channel forming apparatus
02/1992
02/26/1992EP0471770A1 Method of sealing a fuel rod by welding.
01/1992
01/28/1992US5084230 Hand held tool for removing and replacing a removable top nozzle
1 2 3 4 5 6 7 8 9 10 11 12 13