Patents
Patents for G21C 3 - Reactor fuel elements or their assemblies; Selection of substances for use as reactor fuel elements (6,332)
07/1991
07/02/1991US5027635 Channel hot-forming apparatus
06/1991
06/26/1991EP0433620A1 Reduced flow resistance cast lower end fitting
06/26/1991EP0433493A1 Nuclear reactor fuel assembly comprising spacergrids and method for their fabrication
06/26/1991CN1013009B Method for preparing oxide-nuclear fuel sintered matter
06/25/1991US5026517 Nuclear power plant with water or liquid sodium coolant and a metallic component contacting the coolant
06/25/1991US5026516 Corrosion resistant cladding for nuclear fuel rods
06/19/1991EP0432739A1 Fuel assembly for a lightwater nuclear reactor
06/19/1991EP0432738A1 Fuel assembly for a boiling water nuclear reactor
06/19/1991CN1012924B Fuel assembly grid for light water reactor
06/18/1991US5024810 Nuclear fuels
06/18/1991US5024809 Zircondium alloy tube having a sponge zircondium barrier layer in an elongated container with a central core filler with compounds of uranium, plutonium and thorium
06/18/1991US5024807 Debris catching spring detent spacer grid
06/18/1991US5024806 Enhanced debris filter bottom nozzle for a nuclear fuel assembly
06/18/1991US5024426 Bimetallic spring member for radiation environment
06/13/1991DE4036635A1 Fuel rod arrangements for boiling water reactor - has ordered rows and columns of fuel elements angled at 45 deg. to the casing walls with reinforcing across corners or orthOgonal
06/12/1991EP0432065A1 Process for manufacturing UO2 nuclear fuel pellets from Uranium metal, without production of any effluent
06/11/1991US5023048 Zirconium alloy with niobium or vanadium
06/11/1991US5023047 Nuclear reactor having an ascending cooling path much greater than the descending cooling path
06/06/1991CA2031333A1 Process for producing uo2 combustible pellets from metallic u without effluent production
06/05/1991EP0429704A1 Fuel assembly with flow trippers for a boiling water reactor
06/05/1991EP0429703A1 Fuel assembly for a boiling water reactor
06/05/1991EP0429445A1 Arrangement for centering components of a nuclear reactor
05/1991
05/29/1991EP0428982A1 Fuel assembly for a boiling nuclear reactor
05/28/1991US5019333 Zirconium alloy for use in spacer grids for nuclear reactor fuel claddings
05/22/1991EP0428093A1 Fuel assembly for a boiling nuclear reactor
05/22/1991EP0428092A1 Fuel assembly for a boiling nuclear reactor
05/21/1991US5017336 Corrosion resistant cladding
05/21/1991US5017332 Two-phase pressure drop reduction BWR assembly design
05/15/1991CN1051452A Fuel assembly and rod for optimal fuel utilization
05/14/1991US5015437 Graphite core blocks for high temperature gas-cooled reactor
05/14/1991US5015435 Device for demountable fastening of a guide tube into an end fitting of a fuel assembly of a nuclear reactor
05/14/1991US5015422 UO2 pellet fabrication process
05/08/1991EP0425856A1 Fuel assembly and rod for optimal fuel utilization
05/02/1991EP0425465A1 A method of manufacturing cladding tubes for fuel rods for nuclear reactors
04/1991
04/24/1991EP0423382A1 Nuclear-fuel assembly
04/23/1991US5009840 Fuel assembly for nuclear reactor
04/23/1991US5009839 Nuclear fuel assembly bottom nozzle plate
04/23/1991US5009837 Axially modular fuel assembly and rod for optimal fuel utilization
04/23/1991US5009817 Uranium dioxide production
04/18/1991DE4031402A1 Nuclear reactor fuel element - with slide rails allowing fuel element box withdrawal
04/17/1991EP0422950A1 Nuclear fuel assembly with debris filter
04/16/1991US5008070 Fuel assembly
04/10/1991EP0421868A1 Superficial oxidation of a piece of passive metal and combustible assembling elements of a metallic alloy coated with a protective oxide
03/1991
03/27/1991EP0419228A1 Nuclear fuel assembly and nuclear reactor core containing said assembly
03/27/1991EP0419158A1 Device for magnetic identifications of a component such as a nuclear fuelassembly in a nuclear reactor, nuclear fuel assembly provided with such a magnetic identification device and method for the magnetic identification of a component such as a fuel assembly in a nuclear reactor
03/27/1991EP0419096A1 Silicon grain refinement of zirconium
03/27/1991EP0418628A1 Enhanced debris filter bottom nozzle for a nuclear fuel assembly
03/27/1991EP0418578A1 Fissionable nuclear fuel composition
03/27/1991CN1050225A Zirlo material for light water reactor applications
03/26/1991US5002726 Nuclear fuel assembly spacer and loop spring with enhanced flexibility
03/26/1991US5002725 Nuclear reactor fuel assembly
03/26/1991US5002724 Upper tie plate for boiling water nuclear reactor
03/26/1991US5002723 Nuclear fuel element
03/26/1991US5002722 Nuclear fuel assembly with coolant flow fractionation
03/20/1991CN1012041B Method of manufacturing airconium alloy plates
03/20/1991CA2024604A1 Silicon grain refinement of zirconium
03/19/1991CA2021080A1 System for identification of components
03/13/1991EP0416778A2 Nuclear fuel bodies and the production thereof
03/13/1991EP0416313A1 Austenitic Cr-Ni-Mn-steel excellent in resistance to neutron irradiation embrittlement
03/12/1991US4999154 Demountable fuel assembly for a nuclear reactor cooled by light water
03/12/1991US4999153 Flow tripper in combination with spacer deflector
03/12/1991CA1281441C Process for the control of the core of a pressurized nuclear water reactor
03/06/1991EP0415680A1 Improved upper tie plate for boiling water nuclear reactor
03/06/1991EP0415205A1 Side insertable spacer
03/06/1991EP0415134A1 Zirconium based alloy material for light water reactor applications
03/05/1991US4997621 Lower tie plate with stepped holes to control pressure drop and flow distribution
03/05/1991US4997596 Ceramic oxide, boron compound
03/05/1991US4997477 Uranium silicide dispersion fuel utilizing rapid solidification by atomization
02/1991
02/26/1991US4996021 Bottom nozzle to guide tube connection
02/26/1991US4995548 Preparation process for coextrusion billets with multiple metallic cylindrical layers
02/19/1991US4994234 Controlling coolant flow to nuclear fuel assemblies
02/19/1991US4994233 Fuel rod with axial regions of annular and standard fuel pellets
02/19/1991US4994231 Apparatus for blending constituents of varying densities
02/12/1991US4992254 Low density carbonized composite foams
02/12/1991US4991280 Method for replacing bolts on core components in nuclear reactors
02/06/1991EP0411299A1 Process for passivating uranium oxides to control oxidation
02/05/1991US4990305 Annealing, expansion
02/05/1991US4990304 Instrumentation tube features for reduction of coolant flow-induced vibration of flux thimble tube
02/05/1991US4990303 Zirconium-tin alloy cladding tube with boron oxide containing coating
01/1991
01/30/1991EP0410171A1 Protective device for lower end portion of a nuclear fuel rod cladding
01/29/1991US4988474 Process and holding component for repair of a nuclear fuel assembly damaged at the periphery of a spacer support
01/23/1991EP0409405A2 Nuclear fuel element, and method of forming same
01/22/1991US4986960 Two piece end fitting with hairpin springs
01/22/1991US4986959 Nuclear fuel assembly with expandable top nozzle subassembly
01/22/1991US4986958 Fuel assembly
01/22/1991US4986957 Nuclear fuel elements
01/22/1991US4986955 Device for removing peripheral fuel rods from a fuel assembly of a nuclear reactor
01/22/1991US4986953 Device for the support and positioning of means for checking and tools for working on fuel assemblies
01/16/1991CN1011270B Fuel assembly having anti-corrosing grids
01/15/1991US4985199 Fuel spacer of separate cell type and manufacturing method therefor
01/15/1991US4985183 UO2 pellet fabrication process
01/09/1991EP0406637A2 Two-phase pressure drop reduction BWR assembly design
01/09/1991EP0406471A1 Nuclear reactor fuel element
01/02/1991EP0405172A1 Single peak radial texture zircaloy tubing
01/02/1991EP0405170A1 End stop for welding sealing plugs of nuclear fuel rods
01/01/1991US4981642 Apparatus for form-locking torsion prevention in screw connections
01/01/1991US4981527 Tube, bar, sheet or strip made from zirconium alloy resistant both to uniform and nodular corrosion
12/1990
12/27/1990EP0403955A1 Method of reducing the content of plutonium in nuclear fuel and nuclear fuel element for nuclear reactor
12/25/1990US4980121 Protective device for lower end portion of a nuclear fuel rod cladding
12/18/1990US4978917 Method for nondestructive measurement of heat affected zone of identification code on nuclear fuel rod
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