Patents
Patents for G21C 13 - Pressure vessels; Containment vessels; Containment in general (2,467)
12/1989
12/05/1989US4885122 Instrumentation port clamps
11/1989
11/28/1989US4883185 Suspension type transporter for a bolt drawing machine and positioning controller therefor
11/23/1989EP0342381A2 Passive cooling system for nuclear reactor containment structure
11/16/1989DE3814860A1 Boiling water nuclear reactor having natural circulation
10/1989
10/25/1989CN1036656A Pressure vessels of reactor
10/11/1989EP0336110A2 Radiation reducing manway doors
10/05/1989DE3909446A1 Pressure container for a nuclear reactor
09/1989
09/19/1989US4867338 High temperature seal
08/1989
08/22/1989US4859404 Reactor vessel internals storage area arrangement
08/22/1989US4859403 Feedwater sparger restraint
08/22/1989US4859402 Bottom supported liquid metal nuclear reactor
07/1989
07/25/1989US4851184 Building made from concrete walls, in particular for nuclear plants
07/25/1989US4851183 Underground nuclear power station using self-regulating heat-pipe controlled reactors
07/18/1989US4849157 Core barrel for a high-temperature nuclear reactor
07/11/1989US4847038 Procedure for complete replacement of a steam generator of a pressurized water nuclear reactor
07/04/1989US4844274 Pressure vessel having a connection stub with a thermal protector
06/1989
06/27/1989US4842807 Support stand for top access reactor cavity dosimetry
06/27/1989US4842804 Integral reactor cavity seal/shield
06/22/1989DE3742045A1 Electrical connector
06/20/1989US4840096 Device for machining chamfers on a free of a pipe
06/13/1989US4839137 Nuclear steam supply system and method of installation
06/07/1989CN1033335A Process for fixing pipes to thick-wall assemblies, e.g. vessels of pressurized-water reator, by means of welding
06/07/1989CN1033334A Manufacture of pressure vessels for light water reactor core and the pressure vessels for reactor core therefore
06/07/1989CN1004451B Fission product scrubbing system for a nuclear reactor
06/06/1989US4836976 Austenitic stainless steel alloy
05/1989
05/30/1989US4834937 Fluid flow-restricting seals or baffles
05/30/1989US4834935 Feedwater sparger assembly
05/16/1989US4830814 Integrated head package for a nuclear reactor
05/16/1989CA1254308A1 Basin, namely de-activation pool for nuclear plant
05/09/1989US4828789 Reactor vessel head permanent shield
05/03/1989EP0313887A2 One-piece temporary gap seal between reactor vessel and closure head
05/02/1989US4826652 Low capacity nuclear reactor housed underground in the cavity of a cylindrical pressure vessel
05/02/1989US4826217 Apparatus and method for sealing a tube joint
05/02/1989US4826036 Nozzle dam sealing system
05/02/1989CA1253409A1 Device for the installation and retention of a shutter plate for an opening in an enclosure
05/02/1989CA1253408A1 Removable shutter for an orifice which is only accessible by means of a narrow passage
04/1989
04/19/1989EP0312426A1 Method of fabricating a light water nuclear reactor vessel and nuclear reactor vessel fabricated by this method
04/19/1989EP0312421A1 Method of fixing by welding a nozzle to a thick-walled element such as a nozzle belt of a nuclear reactor vessel
04/13/1989DE3731908A1 Nuclear power station with high-temperature reactor and steam generator
04/11/1989US4820476 System and method for plugging the core barrel of a nuclear reactor
04/11/1989US4820474 Pressure seal stud hole plug unit
04/04/1989US4818476 Reactor vessel stud thread protector
04/04/1989US4818469 Molded, flexible graphite element coated with a thin tantalum layer
03/1989
03/29/1989EP0308691A1 Modular nuclear reactor
03/28/1989US4815344 Control mechanism of a bolt stressing unit
03/22/1989EP0242400B1 Hanging-type transport apparatus for bolt-pulling machine and apparatus for controlling the positioning thereof
03/14/1989US4812285 For sealing interface between tubular conduits in nuclear reactors
03/14/1989US4811759 Device for the fluidtight closure of an aperture extending through a wall
02/1989
02/28/1989US4808370 Connection of a hot gas line to the core barrel of a gas-cooled high-temperature nuclear reactor
02/28/1989CA1250500A1 Steam generator support system
02/21/1989US4807262 Apparatus for sealing the seam between two conduits
01/1989
01/31/1989US4801425 Nuclear power plant having a metallic reactor pressure vessel
01/31/1989US4801421 On-line monitoring and analysis of reactor vessel integrity
01/31/1989CA1249673A1 Check-valve assembly, namely for pressurized water reactor
01/18/1989EP0298986A1 Apparatus and method for sealing a tube joint.
01/17/1989CA1249080A1 Plant having a nuclear heating reactor
01/11/1989CN1030322A Nuclear power plant with a high temperature reactor located in a cylindrical prestressed concrete pressure vessel
01/10/1989US4797250 Nuclear reactor confinement enclosure foundation
01/10/1989US4796653 Method of enhancing residual compressive stress in double metallic tubes
01/05/1989DE3720752A1 Restraint for heavy components in high-temperature service
01/05/1989DE3720603A1 Pressure vessel
01/04/1989EP0297881A2 Integrated head package for a nuclear reactor
12/1988
12/07/1988EP0293721A1 Pressure tank with a connecting branch piece with thermal protection
11/1988
11/30/1988EP0293281A1 Device for screwing and unscrewing bolts and nuts of large dimensions
11/29/1988US4788033 Upper and lower plates which support tubes enclosed in shell; transverse coolant flow protection in nuclear reactors
11/29/1988US4788031 Heat exchanger of metal liner and cooling pipes
11/29/1988CA1245718A1 System of generating electricity using a swimming pool type nuclear reactor
11/22/1988US4786464 Transverse deflection plate suspended by spaced vertical elastic strips
11/22/1988US4786462 Support structure for a nuclear reactor
11/22/1988US4786461 With stacks of belleville spring washers; movable plunger
11/08/1988US4783310 For liquid metal type; flexible, heat resistant
11/08/1988US4782863 Removable shutter for an orifice accessible only through a narrow passage
11/08/1988US4782727 For performing a cross cutting operation
11/03/1988DE3712476C1 Device for preventing an unacceptably large pressure build-up in a gas-cooled nuclear reactor installed in a prestressed-concrete pressure vessel
11/02/1988EP0289388A1 Method for the integral replacement of a steam generator by a pressurized-water nuclear reactor
11/02/1988EP0288936A2 Building with concrete walls especially for nuclear facilities
11/02/1988EP0288745A2 Sealing device
10/1988
10/26/1988EP0288245A2 Steel for light water reactor cores
10/25/1988US4780272 Device for suspending a structure
10/25/1988US4780270 Passive shut-down heat removal system
10/18/1988US4778651 Austenitic stainless steel, particularly usable as a core structural or canning material in nuclear reactors
10/18/1988US4778645 Pressurized water reactor having disconnectable two-piece drive rod assemblies, and related methods of assembly and maintenance operations
10/11/1988US4777008 Plug disposed in nozzle section of coolant piping, secured to mount seat at manhole
09/1988
09/13/1988US4770235 In a nuclear steam generator for securing a dam
09/06/1988US4769207 Cylindrical insert
08/1988
08/31/1988EP0280552A2 Arrangement for plugging poorly accessible flow holes having a chamfer
08/30/1988US4767593 Multiple shell pressure vessel
08/25/1988DE3709042A1 Structure with high degree of radiation shielding
08/16/1988US4764336 Basin, in particular a de-activation pool of a nuclear station
08/16/1988US4764332 Sealing element and method for hydrotesting of nuclear reactor tubular elements
08/02/1988US4761261 Nuclear reactor
08/02/1988US4761260 Nuclear power plant with a high temperature reactor located in a cylindrical prestressed concrete pressure vessel
07/1988
07/26/1988US4759898 Fast neutron nuclear reactor having an improved core cover plug
07/19/1988US4758402 Refueling seal arrangement for nuclear reactor vessel
07/12/1988US4756879 Core cover plug of a liquid metal-cooled nuclear reactor
07/12/1988US4756873 Lower pressure vessel charged with primary gas, upper pressure vessel charged with protective gas, high temperature gas cooled reactor, turbine, recuperator, radiator, low and high pressure compressors, generator
07/12/1988US4756334 Check-valve assembly, in particular for a pressurized water reactor
07/05/1988US4755352 Thermodynamic system for converting heat produced by reactor to electricity
06/1988
06/30/1988WO1988004710A1 Hydraulic buffer to protect buildings against earthquakes
06/28/1988US4753768 Reactor cavity pool seal
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