Patents
Patents for G21C 13 - Pressure vessels; Containment vessels; Containment in general (2,467)
06/1994
06/28/1994US5325407 Core barrel and support plate assembly for pressurized water nuclear reactor
06/28/1994US5325406 Quick installation non-bolted nozzle dam system
06/23/1994WO1994014165A1 Compression joint of memory metal for reinforcement of a tubular component
06/21/1994US5323435 Control rod housing support bars with wing assemblies
06/21/1994US5323431 Device for securing a reactor vessel washer to a reactor vessel stud
06/21/1994US5323428 Readily disconnectable nozzle arrangement for use with nuclear reactor
06/21/1994US5323427 Laterally translating permanent seal ring for a nuclear reactor cavity
06/14/1994US5321732 Control rod housing support bars with radiation shields
06/14/1994US5320467 Positive thread start fastener
06/01/1994EP0599613A1 Nuclear reactor building partitioned wetwell
05/1994
05/31/1994US5317610 Prevent reduction in wall thickness
05/26/1994WO1994011882A1 Method and device for detecting leaks through the bushings of the cover of a nuclear reactor vessel
05/26/1994WO1994011881A1 Arrangement for clamping a reactor shaft arranged in a reactor pressure vessel
05/25/1994EP0598634A1 Method and device for repairing an internal surface of an adaptor crossing the cover of a nuclear reactor vessel
05/18/1994EP0597244A1 Process for reducing tensile welding stresses in a nozzle in a nuclear reactor shell
05/10/1994US5309626 Reactor vessel head O-ring installation tool
05/04/1994EP0595646A1 Tool and method for supporting one or more 0-ring(s) adjacent to one or more circular grooves in a nuclear reactor head flange
05/04/1994EP0595143A1 Method for replacing a tube crossing the closure head of a reactor pressure vessel
05/04/1994CN1086340A Method of exchanging a nozzle passing through a cover of a nuclear reactor pressure vessel
05/03/1994US5309490 Remote stud cleaner
05/03/1994US5309489 Nuclear reactor with cooling apparatus and method
05/03/1994US5307661 System and method for shot peening reactor vessel penetrations
04/1994
04/26/1994US5307388 Containment structures
04/19/1994US5305357 Sheath and mandrel made up of zircaloy-alloy; emits less radiation
04/05/1994US5301215 Nuclear reactor building
03/1994
03/31/1994WO1994007245A1 A device for sealing and cleaning a lead-through, preferably in a reactor vessel
03/22/1994US5297187 Pressure vessel penetration sealing device
03/22/1994US5297176 Remotely replaceable fuel assembly alignment pin
03/22/1994US5295458 Steam line plug support tool
03/15/1994US5295168 Pressure suppression containment system
03/15/1994US5295165 In a nuclear reactor pressure vessel
02/1994
02/22/1994US5289511 Liquid-metal cooled nuclear reactor
02/22/1994CA1327118C Device for screwing and unscrewing at least one nut on linking elements
02/17/1994WO1994003903A1 Method for mechanical prestress
02/09/1994EP0582504A1 Method and device for machining the inner surface of a tubular element, in particular of an adapter fixed to the cover of a nuclear pressurized water reactor vessel
02/01/1994US5283810 Pressurized water nuclear reactor with inherent safety
01/1994
01/18/1994US5280509 Device for cooling the core and protecting the concrete structure of a nuclear reactor of which the core has begun to melt as the result of an accident
01/12/1994CN1080777A Nuclear reactor control room construction
01/12/1994CN1080775A Low activated incore instrument
01/12/1994CN1080767A Pressurizer tank apper support
01/12/1994CN1080766A Integrated head package for top mounted nuclear in strumentation
01/11/1994US5278880 Pressurizer tank upper support
01/11/1994US5278878 Process for reducing tensile welding stresses in a nozzle in a nuclear reactor shell
01/11/1994US5278876 Head for closing a nuclear reactor pressure vessel shell
01/05/1994DE4221986A1 Dynamic pressure chamber for use in a nuclear reactor pressure vessel - using inert gas or neutron absorbing fluid to fill chamber, increasing core containment safety limits
12/1993
12/29/1993EP0576118A1 Nuclear reactor control room construction
12/29/1993EP0575690A2 Apparatus for annealing walls of nuclear reactors
12/28/1993US5274683 Method for replacing a nozzle
12/21/1993US5272737 Nuclear reactor installation
12/21/1993US5272734 Method of repairing a boiling-water nuclear reactor
12/21/1993US5272732 For providing an effective water barrier
12/21/1993US5271297 Apparatus and device for automatically inserting and removing screw-threaded elements into and from tapped bores
12/15/1993CA2065615A1 Prestabilized chromium protective film to reduce radiation buildup
12/14/1993US5271048 Replacement nozzle and method for replacing a nozzle in a pressure vessel
11/1993
11/30/1993US5267279 Removing coolant, cutting defective part, replacing wtih new part, welding smoothness fittin sleeve, heating with ferrite penetration
11/30/1993US5267275 Apparatus for sealing a joint
11/23/1993US5265141 Captive fastener
11/23/1993US5264056 Method and apparatus for annealing nuclear reactor pressure vessels
11/23/1993US5263802 Pin for the alignment of two elements and device for centering a cover on a vessel making use of this type of pin
11/18/1993EP0570286A2 Lifting device with use of a cable for the manipulation of heavy loads inside a tight armoured enclosure
11/18/1993EP0569635A1 Containment structures
11/16/1993US5263061 Nuclear reactor control room construction
11/16/1993US5263058 Projectable plug assembly for core barrel flow hole and installation method therefor
10/1993
10/19/1993US5255294 Sealing device for cylindrical hollow bodies with an opening at an end face, especially for sealing pump sockets in the interior of reactor containers
10/19/1993US5253407 Control rod drive endcap tool
10/14/1993DE4212225A1 Gas=tight multi layer containment wall for nuclear installations - comprising supporting wall, covering sealing layer and outer protective wall, fastened firmly to the supporting wall
10/13/1993EP0565380A2 Repair of nuclear reactor incore housings and ultrasonic examination
10/12/1993US5253277 Vent assembly
10/07/1993DE4211283A1 Gas=tight multilayer containment wall for nuclear installations - comprising supporting wall, covering sealing layer and outer protection wall fastened firmly to support wall
10/06/1993EP0563738A2 Containment building for nuclear installation
10/04/1993WO1993020561A1 Gastight wall
10/04/1993CA2133423A1 Gastight wall
10/04/1993CA2093200A1 Building
09/1993
09/28/1993US5249208 Automatic pressure vessel servicing apparatus
09/21/1993US5247553 Submerged passively-safe power plant
09/14/1993US5245639 Core barrel flow hole plug and installation method therefor
08/1993
08/24/1993US5238054 Steam generator nozzle dam
08/11/1993EP0555066A1 Method and apparatus for annealing nuclear reactor pressure vessels
07/1993
07/27/1993US5230860 Reactor vessel cavity seal plate
07/22/1993DE4201324A1 Screw fastening device with adjustable tensioning unit - esp. for fastening lid onto reactor pressure vessel, has tensioning units mounted on carrier ring which are adjustable radially to partial circle of threaded bolts
07/20/1993US5229067 Liquid metal cooled nuclear reactor
07/13/1993US5227126 Internal structure for a fast neutron nuclear reactor
07/13/1993US5227124 Preventing stress corrosion cracking of weld in nuclear reactor pressure vessel; heating to produce molten ferrite portion in wall and steel sleeve
07/06/1993US5225153 Pebble-type high temperature gas reactor
07/06/1993US5225150 Integrated head package for top mounted nuclear instrumentation
06/1993
06/29/1993US5223210 Passive cooling system for liquid metal cooled nuclear reactors with backup coolant flow path
06/29/1993US5223208 Nuclear power generation system and its construction method
06/15/1993CA1319207C Nuclear reactor having a unitary pressure container structure
06/08/1993US5217681 Special enclosure for a pressure vessel
06/08/1993US5217676 Sealing plug for an internally threaded hole and tool and process for the fitting of this plug
06/02/1993EP0544506A1 Nuclear reactor with low-level core coolant intake
06/01/1993US5214957 Integrity and leak rate testing of a hermetic building
06/01/1993CA1318729C External fuel channel closure for nuclear reactor
05/1993
05/18/1993US5211906 Reactor containment vessel
05/18/1993CA1318042C Intrinsic-safety nuclear reactor of the pressurized water type
05/13/1993WO1993009542A1 Vent assembly
05/12/1993CN1071986A Concrete-filled steel bearing wall and method of manufacture thereof
05/12/1993CN1020556C Nut driving machine
05/11/1993US5209894 Method for sealing a leak from a control rod drive stub tube in a nuclear power reactor
05/11/1993CA1317690C Calandria tank for pressure tube type nuclear reactor
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