| 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) |
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| 04/14/1992 | US5104524 Mixer-settler, solvent meter, pH sensor; minimization of salt waste from spent washing solution |
| 04/09/1992 | DE4031153A1 Shredder plant for radioactive fuel cans - includes can entry shaft with inlet closure slide, slide guide chamber and discharge device |
| 04/07/1992 | US5102614 Control rod housing alignment and repair method |
| 04/02/1992 | DE4040700A1 Partial drainage of water tank - esp. for repair of nuclear fuel element storage tank |
| 03/31/1992 | US5100611 Fuel assembly for a light-wafer nuclear reactor |
| 03/31/1992 | US5100585 Nuclear reactor by-product, crown ethers in diluents |
| 03/25/1992 | EP0475946A1 Nuclear fuel container tamper-proof closure |
| 03/24/1992 | US5098645 Container for reprocessing and permanent storage of spent nuclear fuel assemblies |
| 03/24/1992 | US5098644 Apparatus for consolidation of spent nuclear fuel rods |
| 03/24/1992 | US5098642 System for identification of components |
| 03/24/1992 | US5097583 Method for using an underwater milling machine |
| 03/19/1992 | WO1991009996A3 Transport system, in particular for transporting silicon monocrystals through the tank of a research reactor |
| 03/18/1992 | EP0475799A1 Method and device for extracting a deformed heater rod from a pressurizer container of a nuclear pressure water reactor |
| 03/17/1992 | US5096656 Process for monitoring the side walls of a storage cell for a fuel assembly |
| 03/17/1992 | US5096545 Plutonium recovery from spent reactor fuel by uranium displacement |
| 03/11/1992 | EP0474353A1 Bottom nozzle plate for a nuclear reactor fuel assembly |
| 03/10/1992 | US5094802 Nuclear fuel assembly debris filter |
| 03/04/1992 | EP0473489A1 Method to control the placement of a transportable element and the tightness of the joint with a fixed structure and use of this method |
| 03/03/1992 | US5093071 Air withdrawal and supplying to internal combustion engine; circulation of exhaust gases |
| 03/03/1992 | US5093070 Boiling water reactor; radial; burnable poison |
| 02/26/1992 | EP0472459A1 Process and apparatus for treating solid agglomerates, in suspension in a liquid, to ensure that a heterogeneous mixture can be conveyed in pipelines without deposits |
| 02/25/1992 | US5091142 Method for extracting a locking sleeve from a demountable guide tube of a nuclear reactor fuel assembly |
| 02/21/1992 | CA2049466A1 Process and installation for the treatment of solid particle agglomerates suspended in a liquid, in order to obtain a heterogeneous mixture able to flow in long ducts without causing deposits |
| 02/19/1992 | EP0471510A1 Centering tool for use in refueling water cooled nuclear fission reactors |
| 02/18/1992 | US5089216 System for chemical decontamination of nuclear reactor primary systems |
| 02/18/1992 | US5089213 Nuclear fuel assembly identification code reader |
| 02/11/1992 | US5087410 Method of avoiding localized hydrogen build-ups in safety tanks of reactors |
| 02/06/1992 | WO1992002021A1 Apparatus for the containment of nuclear meltdown debris |
| 02/05/1992 | EP0469962A1 Method and apparatus for removing an elongate member axially embedded in a tubular pipe |
| 02/05/1992 | EP0469627A1 Hand held tool for removing and replacing a top nozzle locking tube |
| 02/04/1992 | US5085834 Method for separating by using crown compounds plutonium from uranium and from fission products in the initial stages for the reprocessing of irradiated nuclear fuels |
| 02/04/1992 | US5085824 Nuclear refueling platform drive system |
| 01/28/1992 | US5084253 Method of removing niobium from uranium-niobium alloy |
| 01/28/1992 | US5084249 Rotary centrifugal contactor |
| 01/28/1992 | US5084235 Direct cycle-type atomic power plant with means for suppressing transfer from a liquid phase to a vapor phase of radioactive nitrogen oxides |
| 01/28/1992 | US5084231 Cylindrical refueling mast with longitudinal guide grooves |
| 01/28/1992 | US5084230 Hand held tool for removing and replacing a removable top nozzle |
| 01/23/1992 | WO1992001299A1 Fuel-bundle inversion for dual-phase nuclear reactors |
| 01/23/1992 | WO1992001290A1 Steam cooled nuclear reactor with bi-level core |
| 01/23/1992 | WO1992001288A1 Seed and blanket fuel arrangement for dual-phase nuclear reactors |
| 01/23/1992 | DE4032857C1 Bendable grab unit for remote searching - has illumination member and flexible coating unit |
| 01/22/1992 | EP0467110A1 Catalyst for removing hydrogen from a hydrogen, oxygen and vapour containing atmosphere |
| 01/21/1992 | US5082618 Method and device for modifying the concentration of the soluble poison contained in the cooling fluid of the primary circuit of a nuclear reactor |
| 01/21/1992 | US5082602 Process and apparatus for regenerating spent reprocessing extraction solvent |
| 01/15/1992 | EP0466533A1 Process and device for dismantling an irradiated component of a nuclear reactor by cutting up its shell |
| 01/15/1992 | EP0465915A1 Device for removing hydrogen by igniting it in a hydrogen, oxygen and vapour containing gaseous mixture which device exhibits a protection against the deposition of low melting fats of high viscosity carried by the vapour |
| 01/14/1992 | US5079995 Auxiliary remote-controlled release device for a positively acting mechanism |
| 01/12/1992 | CA2046665A1 Arrangement with protective effectiveness against the deposition of low-melting greases of high viscosity which are carried along in steam at the removal and ignition of hydrogen in a gas mixture containing hydrogen, oxygen and steam |
| 01/02/1992 | EP0463921A1 Device for opening and tight closure of a transfer passage between the central duct of a transportable hollow body and a vertical shaft arranged in a fixed structure |
| 01/02/1992 | DE4040734A1 Verfahren und einrichtung zur oxidation von wasserstoff Method and device for the oxidation of hydrogen |
| 12/26/1991 | WO1991020086A1 Process and device for oxidation of hydrogen |
| 12/24/1991 | US5075073 Foreign object separator for a reactor cooling system |
| 12/24/1991 | US5075071 Cleaning and excavating tool for control rod canopy seals |
| 12/18/1991 | EP0309470B1 Spent fuel rod horizontal consolidation system and method |
| 12/12/1991 | DE4017987A1 Conditioning spent control rods and fuel cans - from boiling water nuclear reactors for final storage |
| 12/10/1991 | US5071617 Reduced flow resistance cast lower end fitting |
| 12/10/1991 | US5070589 Process for servicing a jet pump hold down beam in a nuclear reactor |
| 12/04/1991 | EP0459854A1 Use of thio-ether ligands for the isolation of palladium from aqueous solutions, particularly from nitric solutions of the irradiated nuclear fuel elements dissolution |
| 12/04/1991 | CN1056714A Use of thioether ligands for separating palladium from aqueous solutions |
| 12/03/1991 | US5069863 Dual winch nuclear fuel transfer system providing more reliable fuel transfer during refueling operations |
| 12/03/1991 | US5069827 Process for reducing and dissolving puo2 |
| 11/16/1991 | CA2042428A1 Use of thioether ligands for separating palladium from aqueous solutions and in particular nitric solutions for dissolving irradiated nuclear fuel elements |
| 11/14/1991 | WO1991017547A1 Magazine for fuel assemblies with spent nuclear fuel |
| 11/12/1991 | WO1991018398A1 Device for the recombination of hydrogen and oxygen and the use of said device |
| 11/12/1991 | US5064606 Channel box removing apparatus |
| 11/12/1991 | CA2082627A1 Device for the recombination of hydrogen and oxygen and the use of said device |
| 11/06/1991 | EP0455011A1 Debris-resistant lower tie plate assembly |
| 11/05/1991 | US5063299 Low cost, minimum weight fuel assembly storage cask and method of construction thereof |
| 11/05/1991 | US5063001 Enclosing waste in vacuo in capsule, placing capsule in pressure container, pressurizing capsule at high temperature, increa sing water vapor content of pressure container atmosphere or forming oxide coating on capsule |
| 11/05/1991 | US5062458 Annular vessel for receivng radioactive solutions containing solids |
| 10/30/1991 | EP0454028A2 Waste treatment process for alkaline waste liquid |
| 10/29/1991 | US5061432 Apparatus for facilitating the servicing of inverted canned pump motors having limited access space and restricted access time especially in nuclear power plants |
| 10/29/1991 | US5060546 Method and apparatus for cutting irradiated fuel elements in the horizontal position by means of a blade-carrying carriage |
| 10/23/1991 | EP0452703A1 Method and means for reducing the risk of criticality when transporting nuclear material, preferably in the form of fuel rods |
| 10/23/1991 | CN1055619A Method for separating by using crown compounds plutonium from uranium and from fission products in initial stages for reprocessing of irradiated nuclear fuels |
| 10/22/1991 | US5059384 Control rod housing alignment and repair apparatus |
| 10/22/1991 | US5058762 Shipping device for heater unit assembly |
| 10/16/1991 | EP0452197A1 Equipment for lifting a load along the vertical axis of a pit and nuclear fuel assembly handling hood fitted with such an equipment having load-and-displacement redundance |
| 10/16/1991 | EP0452075A2 Method of separating and purifying spent solvent generated in nuclear fuel cycle |
| 10/16/1991 | CN1055441A Removable platform for working inside casing, such as pressurizer of pressurized water nuclear reactor |
| 10/15/1991 | US5057289 Extraction, treated with reducing agent in multi-stages, recovering uranium |
| 10/15/1991 | US5057270 Instrumentation arrangement for a pressurized water nuclear reactor |
| 10/09/1991 | EP0451015A1 Removable platform for interventions inside a shell, such as a pressurizer of a PWR |
| 10/08/1991 | US5054348 Device for shearing a group of tubes |
| 10/03/1991 | CA2039313A1 Removable floor for entering an envelope such as in a pressurized nuclear water reactor |
| 10/02/1991 | EP0449713A1 Basket with an integrated cooling gas circuit for removal of nuclear fuel assemblies from a nuclear reactor core |
| 10/01/1991 | US5053187 Apparatus for positioning a mast for the inspection and/or repair of a core shroud of a water-cooled nuclear reactor |
| 10/01/1991 | US5052249 Bolt wrench |
| 09/11/1991 | EP0445670A1 Foreign matter recovering apparatus for fuel assembly for nuclear power generation |
| 09/10/1991 | US5047203 Titanium and aluminum oxide based solid solutions |
| 08/28/1991 | EP0443904A1 Lifting and handling gripper for an object between a position immersed in a hot liquid, such as a metal, and a position surfaced in a gas |
| 08/27/1991 | US5043134 Fuel rod gripper end cap for minimizing impact with grid cell dimples |
| 08/27/1991 | US5043132 Apparatus for transporting and inverting core frame parts of a nuclear reactor |
| 08/20/1991 | US5041193 Acitnide recovery |
| 08/14/1991 | CN1053859A Method for recovering with aid of crown compound plutonium (iv) present in solutions, such as aqueous effluents, concentrated solutions of fission prouducts and concentrated solutions of plutonium |
| 08/13/1991 | US5039474 Apparatus for the ordered, complete filling of a container with rods, particularly rods of spent fuel assemblies from nuclear facilities, in a hexagonally close-packed structure |
| 08/07/1991 | CN1053703A Lower connector of a fuel assembly of a nuclear reactor cooled by light water |
| 08/06/1991 | US5037605 Nuclear fuel assembly debris filter |
| 08/06/1991 | US5037604 Coffer dam for temporary shielding of reactor vessel internals |
| 08/06/1991 | US5037603 Hand held tool for removing and replacing a top nozzle locking tube |