Patents
Patents for G21C 3 - Reactor fuel elements or their assemblies; Selection of substances for use as reactor fuel elements (6,332)
12/1987
12/29/1987US4716016 Having rigid structural skeleton
12/29/1987US4716015 Having sub-assembly fuel modules joined; easily replaced or repaired
12/29/1987US4716011 BWR fuel assembly bottom nozzle with one-way coolant flow valve
12/29/1987US4715111 Remote repair system for nuclear fuel rod assemblies
12/29/1987CA1230805A1 Method of producing a cladding tube for reactor fuel
12/23/1987EP0250345A1 Thermal contact with a high transfer modulus, and uses in cooling a structure exposed to an intense thermal flux
12/22/1987US4714585 Interlocking egg-crate type grid assembly
12/17/1987WO1987007695A1 Thermal contact with high transfer coefficient and applications to the cooling of a structure subjected to an intense thermal flux
12/16/1987EP0249549A1 Method of manufacturing uranium oxide-based nuclear-fuel pellets
12/16/1987EP0249107A2 Nuclear-reactor fuel assembly having a plurality of spacer grids
12/08/1987US4711436 Grid assembly fixture, retention strap and method
12/01/1987US4710343 Nuclear breeder reactor fuel element with silicon carbide getter
12/01/1987US4709909 Retention strap in a grid assembly fixture
12/01/1987US4709848 Bonding reactor core plates and sheets of clad metal, acid dissolvable filler plates, high heat, pressure
11/1987
11/25/1987EP0246962A1 Fuel assembly comprising an anti-corrosion spacer grid
11/24/1987US4708846 Using total length of rod for cooling
11/24/1987US4708845 BWR fuel assembly with improved spacer and fuel bundle design for enhanced thermal-hydraulic performance
11/18/1987CN87103424A Spacing grid for nuclear fuel assembly
11/17/1987US4707330 Whiskers
11/17/1987US4707328 Fuel assembly for a nuclear reactor
11/17/1987US4707326 Sleeve member with each cuide thimble
11/10/1987US4705663 For receiving mutually parallel rods
11/04/1987EP0243917A1 Nuclear fuel assembly
11/04/1987EP0243824A1 Nuclear fuel assembly
11/03/1987US4704248 High performance fuel element with end seal
11/03/1987US4704246 Crimping
10/1987
10/27/1987US4702883 Reconstitutable fuel assembly having removable upper stops on guide thimbles
10/27/1987US4702882 Quick disconnect top nozzle for a nuclear fuel assembly
10/27/1987US4702881 Nuclear reactor spacer grid
10/27/1987US4702880 Heating to critical level, cooling; inconel
10/20/1987US4701296 Fuel array for an undermoderated nuclear reactor
10/14/1987EP0240894A2 BWR critical-power-enhancing water rod
10/13/1987US4699761 Integral reusable locking arrangement for a removable top nozzle subassembly of a reconstitutable nuclear fuel assembly
10/13/1987US4699760 Fuel assembly skeleton with structural and non-structural top nozzle/guide thimble joints
10/13/1987US4699759 Double lock joint for attaching top nozzle to guide thimbles of nuclear fuel assembly
10/13/1987US4699758 Reusable locking tube in a reconstitutable fuel assembly
10/13/1987US4699757 Nuclear fuel rod having pellet stack holding means
10/07/1987EP0240411A1 Spacer grid for a nuclear fuel assembly
10/07/1987EP0240110A1 Improving corrosion resistance of zirconium alloys
10/07/1987EP0239843A1 Sintered nuclear-fuel body, and method of manufacturing it
10/07/1987CN87102343A Nuclear fuel sinter body and process for manufacture sinter
10/06/1987US4698204 Eggcrate configuration, mixing vanes, low turbulence in coolant flow
10/06/1987US4697322 Method and device for repairing fuel assemblies of boiling-water nuclear reactors
09/1987
09/30/1987EP0239512A1 Process for obtaining mixed fritted oxides soluble in nitric acid from nitrate solutions
09/30/1987EP0239441A1 Spacer grid for a nuclear fuel assembly and nuclear fuel assembly using at least one of such spacer grid
09/29/1987US4696769 Reaction product of amine carbonate or amine carbamate and ammonium oxalate and uranium dioxide
09/22/1987US4695476 Process for coating the internal surface of zirconium tubes with neutron absorbers
09/22/1987US4695426 Zirconium alloy; toretain and fix rods into bundles
09/22/1987US4695425 Fuel assembly
09/22/1987CA1227292A1 Electromagnetic method and apparatus for positioning objects located behind a conductive wall
09/16/1987EP0237064A2 Mixing grid for a nuclear reactor fuel assembly
09/15/1987US4693862 Pressurized water reactor
09/09/1987EP0235954A1 Improving corrosion resistance of zirconium alloys
09/08/1987US4692304 Removable and reusable locking pin for top nozzle assembly and disassembly
09/08/1987US4692303 Spacer capture rod to space grid attachment device
09/08/1987US4692302 Coolant flow mixer grid for a nuclear reactor fuel assembly
09/02/1987CN87100909A Positioning grids for nuclear fuel elements
09/01/1987USH326 Mn-Fe base and Mn-Cr-Fe base austenitic alloys
09/01/1987US4690600 Threaded connection having multi-part threaded bolt
08/1987
08/26/1987EP0233426A1 Austenitic stainless steel particularly suitable as a structural core material or as a cladding material in nuclear reactors
08/25/1987US4689195 Equalizing local output peaking factors
08/25/1987US4688416 Fixture and method for rectifying damaged guide thimble insert sleeves in a reconstitutable fuel assembly
08/18/1987US4687631 Top nozzle mounted reusable fastener device in a reconstitutable nuclear fuel assembly
08/18/1987US4687630 Top nozzle and guide thimble joint structure in a nuclear fuel assembly
08/18/1987US4687629 Fuel rod with annular nuclear fuel pellets having same U-235 enrichment and different annulus sizes for graduated enrichment loading
08/18/1987US4687627 Water displacer rod with hollow annular support pellets having sealed internal voids
08/18/1987US4687621 Nuclear fuel assembly with improved spectral shift-producing rods
08/18/1987US4687619 Hold-down device; threading and unthreading collars
08/18/1987US4687601 Process for the preparation of pulverulent metallic oxides from metallic nitrates
08/11/1987US4686079 Fuel spacer with many circular members
08/05/1987EP0230613A2 Nuclear fuel assembly
08/04/1987US4684504 Creep resistant zirconium oxide longitudinal member
08/04/1987US4684503 Reconstitutable nuclear reactor fuel assembly with unitary removable top nozzle subassembly
08/04/1987US4684502 Top nozzle alignment sleeve capture arrangement in a reconstitutable fuel assembly
08/04/1987US4684501 Supporting upper end plug extensions
08/04/1987US4684500 Guide thimble captured locking tube in a reconstitutable fuel assembly
08/04/1987US4684499 Reactor fuel assembly
08/04/1987US4684498 Guide thimble captured locking tube in a reconstitutable fuel assembly
08/04/1987US4684497 Cadmium oxide glazed nuclear fuel pellet and glazing composition
08/04/1987US4684496 Debris trap for a pressurized water nuclear reactor
08/04/1987US4684495 Fuel assembly bottom nozzle with integral debris trap
07/1987
07/28/1987US4683117 For use with moderator control funciton eliminated
07/28/1987US4683116 For supplying electric power; non-controlled fuel assembly
07/28/1987US4683115 Nuclear reactor fuel assembly
07/28/1987US4683114 Boron oxide glass, coating
07/28/1987US4683113 Nuclear fuel assembly
07/14/1987US4680443 Process and apparatus for electron beam welding grids for a nuclear fuel assembly
07/14/1987US4679377 Apparatus for applying an end plug to an end of a fuel rod tube
07/08/1987EP0227989A1 Zirconium-based alloy with high corrosion resistance
07/08/1987EP0227961A2 Vent system for displacer rod drive mechanism of pressurized water reactor and method of operation
07/07/1987US4678924 Method of setting a stop means inside of a tubular element
07/07/1987US4678632 Nuclear fuel assembly grid with predetermined grain orientation
07/07/1987US4678631 Boiling water nuclear reactor fuel assembly
07/07/1987US4678630 Spacer grid insert
07/07/1987US4678629 Nuclear fuel pellet containing gadolinia
07/07/1987US4678627 Debris-retaining trap for a fuel assembly
07/07/1987US4678625 Method of straightening bowed irradiated fuel assemblies
07/07/1987US4678618 Individual source positioning mechanism for a nuclear reactor fuel assembly
07/07/1987US4678546 Process for providing lithium tantalum oxide coated tantalum articles with improved wear resistance
07/02/1987DE3545494A1 Conveyor device for nuclear fuel powder
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