Patents
Patents for G21C 21 - Apparatus or processes specially adapted to the manufacture of reactors or parts thereof (1,254)
08/1988
08/10/1988EP0277708A2 Pellet fabrication
08/09/1988US4762665 Automatic stacking; monitoring length, adjustment; nuclear fuel pellets
08/02/1988US4760637 Reduced stress fuel assembly fabrication apparatus and method
07/1988
07/05/1988US4754866 Apparatus for controlling the conveyance of articles
06/1988
06/07/1988US4748798 Apparatus for automatically loading nuclear fuel pellets
06/01/1988EP0268814A2 Spherical fuel element for a high-temperature reactor, and method for producing it
06/01/1988EP0268807A2 Nuclear fuel assembly bottom nozzle attachment system allowing reconstitution
06/01/1988DE3740591A1 Method for the production of a fuel arrangement having wire spacing elements
05/1988
05/31/1988US4747997 Rod gripper which avoids snagging grid dimples during rod loading
05/25/1988EP0268494A2 Gripper assembly for inserting and removing burnable absorber rods and thimble plugs in a nuclear reactor fuel assembly
05/17/1988US4744922 Neutron-absorbing material and method of making same
04/1988
04/26/1988US4740351 Method of and arrangement for protecting nuclear fuel assembly
04/19/1988US4738821 Reconstitutable nuclear fuel assembly having locking tubes with dimples
04/19/1988US4738820 Adaptor plate attached to guide thimble bottom end-plug with two-headed bolt
03/1988
03/31/1988DE3633267A1 Method for manufacturing a metallic coolant loop for a nuclear reactor
03/08/1988US4729867 Spring retainer apparatus and method for facilitating loading of fuel rods into a fuel assembly grid
02/1988
02/24/1988EP0256766A2 Nuclear fuel pin fabrication
01/1988
01/07/1988EP0251317A2 Spring retainer apparatus for facilitating loading of fuel rods into a nuclear fuel assembly
12/1987
12/01/1987US4709848 Bonding reactor core plates and sheets of clad metal, acid dissolvable filler plates, high heat, pressure
11/1987
11/17/1987US4707326 Sleeve member with each cuide thimble
11/10/1987US4705577 Nuclear fuel element containing low-enrichment uranium and method for producing same
11/04/1987EP0244278A1 Method for loading a rod bundle of a nuclear fuel assembly into a canister, and installation to carry out this method
10/1987
10/20/1987US4700824 Manufacturing installation with several fixed work posts and a handling device
10/13/1987US4699761 Integral reusable locking arrangement for a removable top nozzle subassembly of a reconstitutable nuclear fuel assembly
10/06/1987CA1227634A1 Rotary calcining system with cleaning means
09/1987
09/16/1987EP0237011A2 Apparatus and method for loading pellets into fuel rods
09/08/1987US4692304 Removable and reusable locking pin for top nozzle assembly and disassembly
08/1987
08/18/1987US4687605 Pelletization
08/04/1987US4684498 Guide thimble captured locking tube in a reconstitutable fuel assembly
07/1987
07/29/1987EP0230172A1 Gripper device for a rod bundle of a nuclear fuel assembly
07/21/1987US4680920 Device for moving nuclear fuel element sheaths at a fixed filling station
07/14/1987US4679377 Apparatus for applying an end plug to an end of a fuel rod tube
06/1987
06/16/1987US4672791 Apparatus for applying an end plug to an end of a fuel rod tube
06/03/1987EP0224413A1 Process for recycling nuclear fuel pellets previously irradiated in a fast neutrons nuclear reactor
06/02/1987US4670198 Binder system for the manufacture of nuclear fuel pellets, and the method and product thereof
05/1987
05/27/1987EP0223377A2 Apparatus for controlling the conveyance of articles
05/27/1987EP0223376A2 Method and apparatus for automatically stacking of elements
05/27/1987EP0223200A2 Fuel bundle assembly machine
05/26/1987US4668444 Process for the production of isotrophic spherical fuel or absorber elements for high temperature reactors
05/19/1987US4666639 Process for the production of spherical fuel elements
05/05/1987US4663510 Method for assembling a nuclear reactor fuel element
05/05/1987US4662051 Apparatus for applying an end plug to an end of a fuel rod tube
04/1987
04/28/1987US4660270 Apparatus and method for applying an end plug to a fuel rod tube end
04/28/1987CA1220935A1 Method and tunnel furnace for sintering blanks
04/21/1987US4659537 A skeleton; guide tubes, fuel rods maintained by grids between end pieces
04/07/1987US4655978 Method and tunnel furnace for sintering blanks
03/1987
03/31/1987US4653180 Tool for producing a nuclear reactor fuel assembly
03/24/1987US4651880 Calibrating distributor of cylindrical members
03/24/1987US4651403 Apparatus and method for loading fuel rods into grids of a fuel assembly
03/19/1987DE3532241A1 Conveying device for conveying workpieces between two processing areas
03/17/1987US4649632 Fuel bundle assembly machine
03/03/1987US4647405 Ceramics, group 4 metal diboride, agglomeration, dispersion, electroconductivity
03/03/1987US4646414 Device for gripping and detaching a top nozzle subassembly from a reconstitutable fuel assembly
02/1987
02/24/1987US4645639 Force limiting magnetic assembly for moving stacked fuel pellets between work stations
02/17/1987US4643873 Gas phase reaction of uranium hexafluroide with steam and hydrogen, then mechanical attrition of product
02/10/1987US4642016 Apparatus for unloading nuclear fuel pellets from a sintering boat
02/10/1987US4641408 Plugger guide for aligning an end plug and a fuel rod tube end
02/03/1987USH209 Differential pressure pin discharge apparatus
02/03/1987US4640407 End plug orientation device
01/1987
01/07/1987EP0207801A2 Cathode/ground shield arrangement in a target for a sputter coating apparatus
01/07/1987CN86104429A Improved cathode/ground shield arrangement in a sputter coating apparatus target
01/07/1987CN86102042A Arrangement for loading fuel rods into grids of a fuel assembly
01/06/1987US4634571 Process for the production of plate-shaped fuel elements for research reactors
12/1986
12/23/1986US4631167 Welds made before installing rods; hexagonal tube for rod bundle
12/16/1986US4628581 Apparatus and method for preassembling a top nozzle subassembly for a nuclear reactor fuel assembly
12/02/1986US4625396 Pattern fuel assembly loading system
11/1986
11/12/1986EP0200988A1 Rod pulling tool assembly
11/12/1986CN86102031A Guide thimble captured locking tube in a reconstitutable fuel assembly
11/05/1986CN86101874A Device and method for gripping and detaching a top nozzle subassembly from a reconstitutable fuel assembly
10/1986
10/29/1986EP0199043A1 Device for gripping and detaching the top nozzle subassembly from a reconstitutable fuel assembly
10/08/1986EP0196610A1 Guide thimble captured locking tube in a reconstitutable fuel assembly
10/08/1986EP0196609A1 Arrangement for loading fuel rods into grids of a fuel assembly
09/1986
09/16/1986US4612159 Nuclear fuel element and process for fabricating the same
09/16/1986CA1211344A1 Method of manufacturing cladding tubes of a zirconium- based alloy for fuel rods for nuclear reactors
09/10/1986CN86101285A Manufacturing automation system for nuclear fuel rod production
09/10/1986CN86100680A Apparatus and method for preassembling a top nozzle subassembly for a nuclear reactor fuel assembly
09/09/1986US4610893 Method of manufacturing an absorber plate for a boiling water reactor
09/03/1986EP0193461A1 Cylindrical elements gauging distributor
08/1986
08/27/1986EP0192137A2 Manufacturing automation system for nuclear fuel rod production
08/14/1986WO1986004729A1 Device for sheathing fuel pellets
07/1986
07/30/1986EP0189133A2 Apparatus and method for preassembling a top nozzle subassembly for a nuclear fuel assembly
07/16/1986EP0187268A1 Pattern fuel assembly loading system
07/08/1986CA1207299A1 Tray loader method and apparatus for nuclear fuel pellets
05/1986
05/06/1986US4587394 Device and method of welding nuclear fuel assembly structural elements
05/06/1986CA1204229A1 Nuclear fuel element and process for fabricating the same
04/1986
04/15/1986CA1203288A1 Gas tungsten arc welder
04/09/1986EP0176727A1 Method of manufacturing spherical fuel elements
03/1986
03/18/1986US4576654 Heat treated tube
03/04/1986US4573847 Nuclear fuel rod channel tray loading system
02/1986
02/11/1986US4570051 Enclosing a gas in a nuclear reactor fuel rod
02/11/1986US4569623 Dump assembly
02/11/1986CA1200475A1 Heat treated tube
01/1986
01/28/1986US4566989 Burnable neutron absorbers
01/28/1986US4566835 Nuclear fuel pellet sintering boat loading system
01/21/1986US4565670 Heat treating apparatus using microwaves
01/14/1986US4564498 System for the analysis of nuclear fuel rods
01/02/1986EP0166256A2 Apparatus for coating nuclear fuel pellets with a burnable absorber
12/1985
12/24/1985US4560462 Rotatable drum, enclosed pallet having screened parts, sputtering machine
12/17/1985US4558982 Evacuate and backfill apparatus and method
12/17/1985US4558504 Process for fabricating nuclear reactor fuel assemblies for light water nuclear reactors
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