| Patents for G21C 5 - Moderator or core structure; Selection of materials for use as moderator (1,237) |
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| 03/09/1989 | DE3728488A1 Nuclear reactor with a core removably assembled from individual fuel assemblies, and with a liquid coolant |
| 01/26/1989 | DE3723730A1 Nuclear reactor with a core removably assembled from individual fuel assemblies, and with a liquid coolant |
| 01/17/1989 | US4798700 Ceramic installations |
| 12/27/1988 | US4793966 Nuclear reactor |
| 12/27/1988 | US4793965 Simplified, flexible top end support for cantilever-mounted rod guides of a pressurized water reactor |
| 12/07/1988 | EP0153240B1 Submoderated nuclear reactor |
| 12/06/1988 | US4789518 Fuel assembly core cells having absorbent control rods; drives whith sheet metal shafts |
| 11/29/1988 | US4788033 Upper and lower plates which support tubes enclosed in shell; transverse coolant flow protection in nuclear reactors |
| 11/22/1988 | US4786465 Method for converting a downward flow of bypass coolant to an upward flow |
| 11/22/1988 | US4786464 Transverse deflection plate suspended by spaced vertical elastic strips |
| 11/22/1988 | US4786461 With stacks of belleville spring washers; movable plunger |
| 10/11/1988 | US4777012 Enclosing the metal removal tubes with graphite and boron |
| 10/11/1988 | US4777007 Internal blanket thicker in center; portion of core interposed between blankets |
| 10/06/1988 | DE3810202A1 Core of a light water reactor |
| 09/20/1988 | US4772448 Crimpable cylinder integrally connected to an internally threaded section; sidewalls; nuclear reactors |
| 08/30/1988 | US4767595 Repositioned fuel assembly |
| 08/17/1988 | EP0278799A1 Reactor core and fuelling process for this core |
| 07/26/1988 | US4759904 Pressurized water reactor having improved calandria assembly |
| 07/26/1988 | US4759896 Method and apparatus for improving flux reduction factors |
| 07/12/1988 | US4756877 Support plate has plurality of apertures alignable with engagement means of pressure vessel, the engagement means having recess for insertion of a key |
| 07/12/1988 | US4756067 Manual replacement of old split-pin assemblies by new split-pin assemblies |
| 06/21/1988 | US4752441 Modular former for inner barrel assembly of pressurized water reactor |
| 06/21/1988 | US4752438 Cluster guide with centering and antivibratory positioning device for nuclear reactors |
| 06/14/1988 | US4751042 Removable control rod drive shaft guide |
| 06/07/1988 | US4748733 Removal of old split-pin assemblies from guide tubes and replacement by new split-pin assemblies |
| 05/24/1988 | US4746488 To counteract lift-off of assembly from force of upward coolant flow |
| 05/24/1988 | US4746486 By remote control and under water |
| 05/18/1988 | EP0267846A1 Method of in-core fuel management in pressurized-water reactors |
| 05/11/1988 | EP0266920A2 Nuclear reactor core restraint |
| 05/11/1988 | EP0266593A2 Frictionally loaded top end supports for cantilever-mounted rod guides of a pressurized water reactor |
| 05/11/1988 | EP0266592A2 Simplified, flexible top end support for cantilever-mounted rod guides of a pressurized water reactor |
| 05/11/1988 | EP0266591A2 Resiliently loaded lateral supports for cantilever-mounted rod guides of a pressurized water reactor |
| 05/10/1988 | US4743423 Comprising a canister filled with heavy metal hydride mounted between reactor vessel and core |
| 04/19/1988 | US4738023 Hooking apparatus for a removable constriction plug |
| 03/24/1988 | DE3632503A1 Core structure for nuclear reactors with hexagonal fuel-element grid of round piping |
| 03/22/1988 | US4732729 Fast breeder reactor |
| 03/15/1988 | US4731220 Neutron reflector |
| 03/08/1988 | US4729868 Vibration arrestor for rod guide support structure of the inner barrel assembly of a pressurized water reactor |
| 02/09/1988 | US4723358 Apparatus for inserting rods containing nuclear fuel or neutron absorber material in a predetermined dense packing in a vessel |
| 01/20/1988 | CN87102541A Pressurized water reactor having improved calandria assembly |
| 01/07/1988 | EP0251822A1 Apparatus and method for customizing replacement upper core plate inserts of a nuclear reactor |
| 12/29/1987 | US4716013 Having a calandria mounted above upper internals; no pressure drop |
| 12/29/1987 | US4716012 Prevents debris from lodging in gap between lower core support and lower head of pressure vessel |
| 12/23/1987 | EP0250345A1 Thermal contact with a high transfer modulus, and uses in cooling a structure exposed to an intense thermal flux |
| 12/17/1987 | WO1987007695A1 Thermal contact with high transfer coefficient and applications to the cooling of a structure subjected to an intense thermal flux |
| 12/08/1987 | US4711760 Nuclear reactor incorporating locking device for threaded bolt connections |
| 11/19/1987 | EP0246143A1 Support device of a discharge chamber associated with a suspended pump of a nuclear reactor |
| 11/17/1987 | US4707331 Top end support for water displacement rod guides of pressurized water reactor |
| 11/17/1987 | US4707325 Gauge plate for use in customizing a replacement upper core plate in a nuclear reactor, and method of using the gauge plate |
| 11/11/1987 | EP0245167A1 Core cover plug of a fast neutron nuclear reactor |
| 11/10/1987 | US4704801 Device for checking the vertical alignment of the upper and lower internal equipment of a pressurized water nuclear reactor |
| 11/03/1987 | US4704248 High performance fuel element with end seal |
| 10/27/1987 | US4702880 Heating to critical level, cooling; inconel |
| 10/20/1987 | US4701299 Modular lining for adapting the containment to the core of a pressurized water nuclear reactor |
| 10/07/1987 | EP0240335A2 Pressurized water reactor having improved calandria assembly |
| 10/06/1987 | US4698203 With plurality of steam generators |
| 09/29/1987 | US4696786 Containing irradiated lower internal equipment |
| 09/23/1987 | EP0238390A1 Internal equipment of a nuclear reactor having an elongated vessel |
| 09/23/1987 | CN87100107A Graphite side-reflector |
| 09/22/1987 | US4694585 Device for measuring clearance around a pin for centering the upper internal equipment of a pressurized water nuclear |
| 09/16/1987 | CN87101686A Nuclear reactor having a longitudinally elongated vessel |
| 09/02/1987 | EP0234939A2 Nuclear reactor incorporating locking device for threaded bolt connections |
| 09/01/1987 | US4690593 Tool for cutting locking cups from guide tube mounting screws in a nuclear reactor |
| 08/26/1987 | EP0233727A2 Control rod drive shaft guide |
| 08/19/1987 | EP0232991A2 Liquid metal cooled nuclear reactors |
| 08/06/1987 | DE3603091A1 Gas-cooled HT small reactor having a core made from a bed of spherical fuel elements |
| 07/22/1987 | EP0229705A2 Rod guide support structure of the inner barrel assembly of a pressurized water reactor |
| 07/22/1987 | EP0229548A1 Spider guide with an antivibration centering and positioning device for a nuclear reactor |
| 07/21/1987 | US4681726 Fast breeder reactor |
| 07/15/1987 | EP0229029A2 Retaining pin assembly for control-rod guide-tubes in nuclear reactors |
| 07/15/1987 | CN86107837A Cluster guide with centering and antivibratory positioning device for nuclear reactors |
| 07/07/1987 | US4678619 Nuclear reactor |
| 06/25/1987 | DE3544895A1 High-temperature reactor |
| 06/23/1987 | US4675152 Parallel rods |
| 06/23/1987 | US4675151 Nuclear fuel assembly lock down device |
| 06/16/1987 | US4673548 Thermal barrier and support for nuclear reactor fuel core |
| 06/16/1987 | CA1223094A1 Nuclear fuel assembly lock down device |
| 06/10/1987 | EP0225088A1 Pressurized-water nuclear reactor inner barrel assembly |
| 06/09/1987 | US4671923 For pressurized nuclear reactor |
| 06/03/1987 | CN86107494A Core barrel support system for nuclear reactors |
| 05/27/1987 | DE3541724A1 High temperature reactor |
| 05/20/1987 | EP0222581A2 Method of mounting a core barrel in a pressure vessel of a nuclear reactor |
| 05/20/1987 | EP0222373A1 Top end support for water displacement rod guides of pressurized water nuclear reactor |
| 04/28/1987 | US4661306 Spectral shift pressurized water reactor |
| 04/21/1987 | US4659539 A calandria above upper internals to preclude failure of control rod assemblies |
| 04/21/1987 | US4659538 Apparatus for limiting the effect of axial hydraulic flow force exerted on fuel assemblies of water-cooled nuclear reactors |
| 04/14/1987 | US4657730 Nuclear reactors |
| 04/14/1987 | US4657725 Core for a nuclear reactor cooled by water under pressure |
| 04/07/1987 | US4655996 East neutron reactor having a storage structure independent of the core structure |
| 04/07/1987 | US4655989 Fast breeder |
| 03/18/1987 | EP0214895A1 Nuclear-fuel assembly with a holding structure and anti-blow-out device |
| 03/17/1987 | US4650639 Method and apparatus for eliminating leakage spaces between the partitions surrounding the core of a pressurized water nuclear reactor |
| 03/17/1987 | US4650638 Method for eliminating leakage spaces between the partitions surrounding the core of a pressurized water nuclear reactor |
| 03/17/1987 | US4649609 Apparatus and process for providing an alternate coolant path in the core of a nuclear reactor |
| 03/04/1987 | EP0212257A1 Nuclear reactor core arrangement with neutron reflector |
| 03/03/1987 | US4647422 Within containment building |
| 02/24/1987 | US4645638 Independent of reactor vessel; redundant tandem tension linkages for stability |
| 02/17/1987 | US4643868 Support arrangement for core modules of nuclear reactors |
| 01/14/1987 | CN85105217A Internals distribution system for control system of reactor fluid moderator |
| 12/31/1986 | CN85105167A Gas displacement spectral shift reactor and control method |