| 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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| 12/13/1990 | DE3918443A1 Nuclear waste storage built coupled to power station - has simplified transport and transfer and less shielding problems |
| 12/13/1990 | DE3918441A1 Chimney driven coolant circuit for nuclear storage chamber - has baffles at outlet for radiation shielding and is simple and effective |
| 12/13/1990 | DE3918003A1 High pressure nuclear waste container - has smaller high pressure container in standard drum for double lid operation at standard gate |
| 12/12/1990 | CN1047753A Fuel assembly of nuclear reactor comprising device for retaining particles contained in cooling fluid of reactor |
| 12/12/1990 | CN1047752A Inferior connector of combustible assembly of nuclear reactor importing filter of retardation of particles |
| 12/11/1990 | US4976914 Device for removing a blower from a gas-cooled nuclear reactor |
| 12/11/1990 | US4976579 Flask assembly for contaminated objects |
| 12/05/1990 | EP0401082A1 Nuclear reactor fuel assembly comprising a device for retaining particles present in the reactor coolant liquid |
| 12/04/1990 | USH857 Electrolytic process for preparing uranium metal |
| 12/04/1990 | US4975240 Docking arrangement for connecting a transport and storage container to a radioactively charged work chamber |
| 11/29/1990 | DE3916186A1 Fuel element basin repair - by layer removing tool on frame with guide element on basin wall |
| 11/27/1990 | US4973443 System for removing and installing a control rod drive |
| 11/22/1990 | EP0398239A2 Closure with a latching device for securing the closure to a cask |
| 11/22/1990 | DE3916359A1 Subterranean horizontal depository for fuel elements - with transfer chamber and loading machine |
| 11/22/1990 | DE3916357A1 Subterranean storage place - for vertical fuel elements with unloading and transfer spaces |
| 11/06/1990 | US4968204 Pusher for magazine of irradiated fuel elements |
| 10/30/1990 | US4966745 Fuel rod gripper end cap for minimizing impact with grid cell dimples |
| 10/25/1990 | DE3929327C1 Hydrogen spark igniter for nuclear power station - has spark path safety device with catalyst for controlled combustion |
| 10/25/1990 | DE3913202A1 Fuel element basin wall repair - by frame with RAM carrying a repair lining |
| 10/24/1990 | EP0394129A1 Installation and process to regenerate cold traps, saturated in liquid metal hydrides and oxides |
| 10/24/1990 | EP0393367A1 Improved high pressure thimble/guide tube seal fitting with built-in low pressure seal especially suitable for facilitated and more efficient nuclear reactor refueling service |
| 10/24/1990 | CN1046411A Lower end nozzle of a fuel assembly having a particle retention device and fuel assembly having such an end nozzle |
| 10/24/1990 | CN1046410A Filter plate of underconnector for fuel details of reactors |
| 10/17/1990 | EP0392921A1 Filter plate associated to a bottom nozzle of a nuclear reactor fuel assembly |
| 10/17/1990 | EP0392920A1 Nuclear reactor fuel assembly bottom nozzle comprising a particle retaining filter |
| 10/17/1990 | EP0392919A1 Fuel assembly bottom nozzle comprising a particle retaining device and fuel assembly comprising such a bottom nozzle |
| 10/09/1990 | USRE33373 Tooling apparatus for modifying nuclear reactors |
| 10/09/1990 | US4961900 Can for receiving a cluster of fuel rods containing nuclear fuel |
| 10/04/1990 | DE3931431C1 Device for removing spherical fuel elements from high temp. reactor co - includes element chamber penetrated from beneath by element removing tube surrounded by vertically movable tube, etc. |
| 10/03/1990 | EP0390678A1 Gutter for the evacuation of pieces, equipped with an aeriform barrier and its fitting to an irradiated fuel assembly reprocessing facility |
| 10/03/1990 | EP0389801A2 Method of regulating a purex solvent extraction process |
| 10/02/1990 | US4960560 Spent fuel storage rack for BWR fuel assemblies |
| 09/26/1990 | EP0388955A2 Device for removal of hydrogen from a gas mixture by recombination |
| 09/11/1990 | CA1274022A1 Process for placing a bundle of rods of a nuclear fuel assembly into a case and installation for performing this process |
| 09/05/1990 | EP0385187A1 Fuel element storage rack |
| 09/05/1990 | EP0385186A1 Fuel element storage rack |
| 09/04/1990 | US4954312 Remotely installed steam generator nozzle dam system |
| 09/04/1990 | US4954311 Control rod housing alignment |
| 09/04/1990 | US4953580 Bolted pipe joint releasable by remote control and combination tool therefor |
| 08/28/1990 | US4952072 System and method for removing and consolidation fuel rods of a nuclear fuel assembly |
| 08/21/1990 | US4950449 Inhibition of radioactive cobalt deposition in water-cooled nuclear reactors |
| 08/16/1990 | DE3904113A1 Method and device for emptying a can-like storage container filled with spent spherical fuel elements |
| 08/14/1990 | US4948553 Method of making a rack for the storage of spent nuclear fuel |
| 08/14/1990 | US4948187 Crane operated lifting apparatus |
| 08/08/1990 | EP0381579A1 Method of extracting uranium (VI) and/or plutonium (IV) present in an aqueous acid solution by means of a mixture of N,N-dialkyl amides, for use in the reprocessing of irradiated nuclear fuels |
| 08/08/1990 | EP0381549A1 Device for transferring to and storing in a container nuclear-fuel assembly rods, and container for use with this device |
| 08/07/1990 | US4947340 Instrument for the measurement and determination of chemical pulse column parameters |
| 08/07/1990 | CA1272512A1 Process for the production of a member by shaping build-up welding |
| 07/31/1990 | US4944911 Nuclear fuel assembly structure compacting device |
| 07/26/1990 | DE3901382A1 Device for the combustion of hydrogen from a post-accident atmosphere of a nuclear power station |
| 07/24/1990 | US4943410 Compaction apparatus for spent nuclear fuel rods |
| 07/18/1990 | EP0378117A2 Apparatus for separating and venting gas entrained in a liquid flow stream |
| 07/17/1990 | US4941998 Method of washing a solvent in the reprocessing of irradiated nuclear fuels |
| 07/17/1990 | CA1271619A1 Apparatus for the removal of hydrogen |
| 07/11/1990 | CN1043817A Gravity-type hydraulic gripping method and apparatus without power source |
| 07/10/1990 | US4940564 Suppression of deposition of radioactive substances in boiling water type, nuclear power plant |
| 07/03/1990 | US4938895 Process for removing radioactive ruthenium from aqueous solution |
| 06/28/1990 | DE3843311A1 Radiation-impermeable connection |
| 06/27/1990 | EP0374334A1 Hydraulic cutting device |
| 06/26/1990 | US4937038 Solution quantitative analysis apparatus, quantitative analysis methods, and nuclear reactor water quality control system |
| 06/20/1990 | EP0373338A2 Remotely installed steam generator nozzle dam system |
| 06/19/1990 | CA1270447A1 Device for the ultrafiltration of a pressurised high- temperature liquid |
| 06/13/1990 | EP0372551A2 Reactivity-reducing device for use in on-site fuel assembly storage |
| 06/13/1990 | EP0372214A1 Debris catching spring detent spacer grid |
| 06/06/1990 | EP0371825A2 Method and apparatus for removal of obstructions in thimbles of nuclear power stations |
| 05/31/1990 | DE3840096A1 Lifting device protected against falling |
| 05/30/1990 | CN1042620A Reactor fuel elements removing device for balloon fuel |
| 05/30/1990 | CN1042619A Method and apparaturs of taking out lock shell tube from disassemble guide tube of reactor fuel elements |
| 05/29/1990 | US4929413 Television alignment of mast assembly in refueling of nuclear reactor |
| 05/29/1990 | US4928497 Sodium purification from its hydride and oxide |
| 05/22/1990 | US4927598 By forming metal ferrites with a beryllium catalyst |
| 05/22/1990 | US4927595 Refueling of nuclear reactor |
| 05/22/1990 | CA1269251A1 Removing neutron-absorbing fission products from uranium-based fuels |
| 05/01/1990 | CA1268562A1 Device for grasping a pencil cluster in a nuclear fuel assembly |
| 04/26/1990 | CA2001413A1 Uranium absorbent |
| 04/25/1990 | CN1041664A Centering and fixation device for a cluster guide flange of a core plate of a nuclear reactor |
| 04/24/1990 | US4919881 Reactor internals through-hole grapple |
| 04/19/1990 | WO1990004255A1 Withdrawal of fuel elements in pebble-bed nuclear reactors |
| 04/18/1990 | EP0364209A1 Method of dissolving spent nuclear fuel |
| 04/18/1990 | CN1041475A Device and process for fitting of blocking sleeve of guide tube in removable connector of fuel assembly of nuclear reactor |
| 04/18/1990 | CN1041474A Apparatus and method for drawing blocking sleeve of guide tube of fuel assembly of nuclear reactor |
| 04/17/1990 | US4917856 Self-latching reactivity-reducing device for use in on-site spent fuel assembly storage |
| 04/17/1990 | US4917855 Apparatus for the shutdown of a high temperature nuclear reactor |
| 04/17/1990 | US4917854 Method and arrangement for consolidating and storing nozzles removed from nuclear fuel assemblies |
| 04/12/1990 | DE3929616A1 Brennelementabzug fuer einen kugelhaufenkernreaktor Fuel element outlet for a bullet-heap nuclear reactor |
| 04/11/1990 | EP0363267A1 Device for centering and fixing a cluster guide tube flange on an upper core plate of a nuclear reactor |
| 04/11/1990 | EP0363266A1 Nuclear-fuel assembly transfer beam, and nuclear reactor comprising such a beam |
| 04/04/1990 | EP0362009A1 Device and method to extract locking sleeves from guide tubes of reconstituable nuclear reactor fuel assemblies |
| 04/04/1990 | EP0362005A1 Method and device to extract locking sleeves from guide tubes of reconstituable nuclear reactor fuel assemblies |
| 04/04/1990 | EP0361773A1 Method of recovering radioactive iodine in a spent nuclear fuel retreatment process |
| 04/04/1990 | EP0360797A1 Store. |
| 04/03/1990 | US4913559 Fuel assembly alignment pin straightening method |
| 03/29/1990 | DE3914331C1 Fuel element storage for dry storing spherical shape fuel elements - comprises concrete outer casing, concrete lid with openings, concrete base with air channels, vertical storage shafts and air spaces |
| 03/28/1990 | EP0360665A1 Device for inserting a guide thimble locking tube in a nozzle of a reconstituable nuclear reactor assembly |
| 03/28/1990 | EP0360651A1 Emergency device in controlling the movement of a trolley conveying a nuclear-fuel assembly |
| 03/28/1990 | EP0360629A1 Instrumentation device for the core of a nuclear water-pressurized reactor, and method and device for removing and installing this instrumentation device |
| 03/28/1990 | EP0360107A2 Centering device for aligning opposite openings of two components |
| 03/28/1990 | EP0360106A2 Delivery system |
| 03/28/1990 | EP0360105A2 Device for transferring fuel rods from a first container to a second container |
| 03/27/1990 | US4911879 Apparatus for the recombination of hydrogen and oxygen |