Patents
Patents for G21C 19 - Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel (6,229)
09/1987
09/16/1987EP0236816A2 Method and device for assistance of the refuelling of a reactor core with longitudinal fuel assemblies
09/15/1987US4693822 Fluidic contactors
09/15/1987US4693088 Cold trap for eliminating impurities from a polluted liquid metal
09/10/1987DE3630058A1 Process and device to assist the refuelling procedure for a reactor core with lengthy fuel assemblies
09/09/1987EP0236073A2 Gripper apparatus and method
09/08/1987US4692304 Removable and reusable locking pin for top nozzle assembly and disassembly
09/02/1987EP0235053A1 Multiple-gripper handling device with individual stress limitation
09/02/1987EP0234199A1 Process for obtaining a solution of almost non-soluble nuclear fuel, particularly of plutonium oxide or a mixed oxide of uranium/plutonium
09/01/1987US4690795 For nuclear reactor well
09/01/1987US4690593 Tool for cutting locking cups from guide tube mounting screws in a nuclear reactor
09/01/1987CA1226379A1 System for manipulating radioactive fuel rods within a nuclear fuel assembly
08/1987
08/26/1987EP0233564A2 Device for eliminating hydrogen
08/26/1987EP0233498A2 Process and apparatus of photoelectrocalalytically reducing noble metals in a nitric acid solution
08/26/1987EP0233424A1 Probes guidance device for nuclear reactor
08/25/1987US4688416 Fixture and method for rectifying damaged guide thimble insert sleeves in a reconstitutable fuel assembly
08/19/1987CN85108919A Gamma radiation loop facility with solid spheres
08/18/1987US4687624 Liquid metal cooled fast breeder reactor
08/18/1987US4687619 Hold-down device; threading and unthreading collars
08/18/1987US4687600 Process for the separation of coated nuclear fuel particles from a graphitic matrix and installation for implementing the process
08/18/1987US4687245 Tool for pulling multiple rods from a nuclear fuel assembly
08/18/1987US4687174 Device for centering and guiding a roller supporting a heavy component
08/11/1987US4686089 Sieve-plate column for counterflow extraction
08/11/1987US4686019 In nitric acid
08/06/1987DE3603092A1 Removal of components in nuclear reactors
08/04/1987US4684499 Reactor fuel assembly
08/04/1987US4684498 Guide thimble captured locking tube in a reconstitutable fuel assembly
08/04/1987US4684494 Ultrafiltration device in a pressurized water nuclear reactor
08/04/1987US4684491 In nuclear steam generator vessel
08/04/1987CA1225168A1 Machine permitting the remote closure of drums
07/1987
07/29/1987EP0230172A1 Gripper device for a rod bundle of a nuclear fuel assembly
07/28/1987US4683110 Apparatus and method for consolidating spent fuel rods
07/28/1987US4683109 Work flatform disposable on fuel racks
07/28/1987US4683108 Internal region of reactor core
07/28/1987US4683107 Method and device for replacing neutron absorber rods
07/22/1987EP0229703A2 Reactor instrumentation thimble seal arrangement
07/22/1987EP0229702A2 Nozzle seal retaining assembly and positioning assembly therefor
07/15/1987EP0228940A1 Process for extracting uranium and/or plutonium IV from an aqueous solution by means of N,N-dialkylamides
07/15/1987EP0228679A2 Process for selectively separating plutonium from uranium and other metals
07/14/1987CA1224281A1 Multiple fuel rod gripper
07/08/1987EP0228051A2 Process for selectively separating plutonium from uranium and other metals
07/07/1987US4678627 Debris-retaining trap for a fuel assembly
07/07/1987US4678624 Method for loading fuel rods into a container
07/07/1987US4678620 For a nuclear fuel transfer tube
07/07/1987CA1223983A1 Machines for dismantling decommissioned nuclear reactors
07/01/1987CN86108402A Probe guide duct device for a nuclear reactor
06/1987
06/30/1987US4676945 Plurality of separate and individual centering devices; pressurized water reactors
06/30/1987US4675961 Replacement of split-pin assemblies in guide tubes
06/25/1987DE3545349A1 Nuclear or chemical installation having at least two chambers
06/25/1987DE3544895A1 High-temperature reactor
06/24/1987EP0226442A1 Latching device for releasably attaching elongate members to top nozzles of nuclear fuel assemblies
06/23/1987US4675149 Boiling water nuclear reactors, securing pressure sensor lines
06/23/1987US4675090 Electrodialysis using a membrane comprising an animated graft polymer support
06/16/1987US4673547 Process for separation of hydrogen and/or deuterium and tritium from an inert gas flow and apparatus for effectuation of process in the cooling gas circuit of a gas-cooled nuclear reactor
06/16/1987US4673544 Pushing device for sliding fuel rods out of a nuclear reactor fuel assembly
06/16/1987EP0225511A2 Pressurized water reactor having disconnectable two-piece drive rod assemblies
06/09/1987US4671921 Process, installation and device for compacting oblong objects
06/03/1987EP0224413A1 Process for recycling nuclear fuel pellets previously irradiated in a fast neutrons nuclear reactor
06/03/1987EP0224277A2 Process for selectively separating plutonium from uranium and other metals
06/02/1987CA1222579A1 Nuclear reactor fuel assembly peripheral rod lifting device
05/1987
05/27/1987EP0223342A1 Locking-tube removal and insertion fixture for use with reconstitutable nuclear fuel assemblies
05/27/1987CN86106640A Apparatus for burning gases containing hydrogen and for cooling combustion gases
05/26/1987US4667547 Apparatus and method for removing a top nozzle in reconstituting a fuel assembly
05/21/1987DE3544700C1 Multiple gripper for manipulating nuclear reactor fuel elements
05/19/1987US4666660 Reducing load on pool floors with buoyant spacer boxes
05/19/1987US4666658 Drive and penetration rods removed as a unit
05/19/1987US4666200 Safety grapple
05/19/1987US4666050 Manipulator for a nuclear reactor
05/19/1987CA1222076A1 Method and apparatus for providing a non-radioactive coolant for a nuclear reactor
05/13/1987EP0221343A1 Autonomous aerator for small pressure differences
05/12/1987US4664880 Wire mesh debris trap for a fuel assembly
05/12/1987US4664875 Replacing on guide thimbles
05/12/1987US4664874 Reusable locking tube insertion and removal fixture and method in a reconstitutable fuel assembly
05/12/1987US4664872 Device for disposing of elongated core instrumentation probes from nuclear reactors
05/06/1987EP0220931A2 Cell for a spent nuclear fuel rack
05/05/1987USH262 Method of and apparatus for removing silicon from a high temperature sodium coolant
05/05/1987US4663116 Cooling water circulation system
05/05/1987US4663114 Apparatus for handling nuclear fuel assemblies and assembly adapted to such an apparatus
05/05/1987US4663112 Nuclear fuels, dopes
04/1987
04/29/1987EP0220117A1 Nuclear-fuel assembly-handling machine and method for reactor refueling comprising its application
04/29/1987EP0220015A2 Emergency transfer tube closure for sealing transfer tube under emergency conditions
04/28/1987US4661311 Nuclear power plant arranged in an underground cavity with a small high-temperature pebble bed reactor
04/22/1987EP0219318A2 Remotely operable fuel transfer system for nuclear reactor
04/22/1987EP0218854A2 Process and apparatus for regenerating spent reprocessing extraction solvent
04/21/1987US4659551 Process for separation of neptunium from an organic phase in the recovery of irradiated fuel and/or fertile materials
04/21/1987US4659537 A skeleton; guide tubes, fuel rods maintained by grids between end pieces
04/21/1987US4659536 Operator and control station
04/21/1987US4659535 Storage of spent nuclear fuel
04/15/1987EP0218494A1 Method and device for compacting a bundle of fuel rods
04/15/1987EP0218054A1 Rack for oblong nuclear-reactor fuel elements
04/14/1987US4657154 Container having a latchable cover
04/14/1987US4656734 Apparatus for replacement of guide pins of a guiding tube forming part of the top internal equipment of a pressurized water nuclear reactor
04/14/1987CA1220573A1 Process and apparatus for reconstruction of nuclear fuel assemblies
04/08/1987EP0217377A2 Apparatus for burning gases containing hydrogen and for cooling resulting combustion gases
04/07/1987US4656011 Itechnetium reduction catalyst
04/07/1987US4655996 East neutron reactor having a storage structure independent of the core structure
04/07/1987US4655990 Fuel assemblies for nuclear reactors
04/01/1987EP0216655A1 Cold trap for eliminating the impurities from a polluted liquid metal
04/01/1987EP0216473A1 Extraction of cesium and strontium from nuclear waste
03/1987
03/31/1987US4654189 Efficient
03/31/1987US4654056 Adsorption, gas chromatography
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