Patents for G21C 1 - Reactors (2,232)
03/1991
03/20/1991EP0418072A1 Vapor generating reactor system
03/19/1991US5000907 Nuclear reactor with emergency cooling water injection device
03/12/1991US4998509 Of a nuclear reactor
03/06/1991CN1011930B Method and apparatus for taking ball fuel elements from ball reactors
02/1991
02/13/1991EP0412866A1 Pressurizer of a PWR having heating element crossing sleeves which can be plugged, and corresponding plugging method
02/12/1991US4992232 Method to control N-16 radiation levels in steam phase BWRs
01/1991
01/30/1991EP0410667A1 Liquid metal cooled nuclear reactors with passive cooling system
01/23/1991EP0408993A1 Swinging support for nuclear power plant pressurizer valves
01/22/1991US4986112 Composite pressure vessel for a nuclear environment
01/10/1991DE3921670A1 Thermal neutron shielding for gas ports - has aerodynamic formed columns of graphite material with high neutron capture cross section material inclusions
01/08/1991US4983353 Novel passive approach to protecting the primary containment barrier formed by the intermediate heat exchanger from the effects of an uncontrolled sodium water reaction
01/02/1991EP0405981A2 Method for obtaining load-following and/or spectral shift capability in boiling water reactors
01/02/1991EP0405720A2 Passive safety injection system using borated water
01/02/1991CN1011097B Gas cold nuclear reactor with spherical member stationary reactor core
12/1990
12/27/1990EP0404429A1 Coffer dam for temporary shielding of reactor vessel internals and method of assembly
12/19/1990EP0403327A1 Method and device for the replacement of a heaterstick of a PWR pressurizer
12/19/1990EP0403222A2 Method for obtaining load-following capability in natural circulation boiling water reactors
12/13/1990WO1990014880A1 Mixing device for fluids
12/11/1990US4976914 Device for removing a blower from a gas-cooled nuclear reactor
12/11/1990US4976913 Nuclear energy system using pelletized fuel in a boiling liquid reactor
11/1990
11/22/1990EP0398733A2 Improved system for passive cooling of liquid metal cooled nuclear reactors
11/21/1990CN1010523B Nuclear reactor having a longitudinally elongated vessel
11/15/1990WO1990013356A1 Mixing device for fluids
11/14/1990EP0397509A2 Indirect passive cooling system for liquid metal cooled nuclear reactors
11/14/1990EP0397508A1 Passive heat removal from containment
11/11/1990CA2012244A1 Passive heat removal from containment
11/06/1990US4968476 Light water breeder reactor using a uranium-plutonium cycle
10/1990
10/24/1990CN1010139B Nuclear power plant with a high temp. reactor
10/24/1990CN1010138B Nuclear reacter with guide in the upper inside structure
10/02/1990US4960561 Nuclear reactor lower internals
09/1990
09/26/1990EP0389232A2 Boiling water reactor system
09/25/1990US4959193 Indirect passive cooling system for liquid metal cooled nuclear reactors
09/19/1990EP0388083A1 Steam generator for sodium-cooled reactors
09/19/1990EP0387891A2 Fast neutron reactor and method of refueling
09/18/1990US4957693 Pressurized water nuclear reactor system with hot leg vortex mitigator
09/05/1990CN1045159A Power source of superpressure delivering and spraying water for 10,000 tons water channel
08/1990
08/21/1990US4950448 Passive heat removal from containment
08/14/1990US4949363 Bottom supported liquid metal nuclear reactor
07/1990
07/12/1990WO1990007559A1 Production of liquid rosin ester
07/12/1990DE3900624A1 Built-in components for a high-temperature reactor accommodated in a prestressed concrete pressure vessel
07/11/1990EP0377494A1 Pressurized water nuclear reactor system with hot let vortex mitigator
07/03/1990US4939754 Device for limitation of a flow through a density lock for a nuclear reactor
06/1990
06/13/1990DE3842533C1 Nuclear reactor installation accommodated in the cavern of a prestressed concrete pressure chamber
06/13/1990CN1008410B Flow limiting head adapter extension
05/1990
05/23/1990CN1008140B Underground low-power pivoted reactor in flawless cylindrical pressure vessel
05/22/1990US4927597 Device for cooling the main vessel of a fast neutron nuclear reactor cooled by a liquid metal
05/09/1990EP0367584A2 Pressure vessel
05/08/1990US4923670 Roof reflector for a nuclear reactor
05/08/1990US4923338 Process for lowering building structures
04/1990
04/25/1990CN1041664A Centering and fixation device for a cluster guide flange of a core plate of a nuclear reactor
04/18/1990EP0363710A2 Combined support column and guide tube for use in a nuclear reactor
04/11/1990EP0363267A1 Device for centering and fixing a cluster guide tube flange on an upper core plate of a nuclear reactor
04/04/1990EP0362156A2 Reactor block of a fast reactor, with an inner cylindrical vessel for removing the residual power of the core by natural circulation
04/04/1990EP0362155A2 Intermediate exchanger of a fast reactor, equipped with a raised upper tube plate, intake siphon and emergency input window
03/1990
03/29/1990DE3919286A1 Nuclear fuel element for particle bed reactor - with fuel bed in annular space between porous external frit contg. fissile material, and internal fit
03/28/1990EP0360629A1 Instrumentation device for the core of a nuclear water-pressurized reactor, and method and device for removing and installing this instrumentation device
03/27/1990US4911880 Nuclear reactor having a unitary pressure container structure
03/22/1990DE3923926A1 Schnell gepulstes neutronenradiographie-system fuer die echtzeit-bildgebung von sich bewegenden gegenstaenden sowie einsatzverfahren fuer dieses Quick pulsed neutron radiography system for the real-time imaging of moving objects and use procedures for this
03/21/1990EP0359716A2 Intrinsic-safety nuclear reactor of the pressurized water type
03/21/1990CN1040699A Instrumentation device for the core of a pressurized water nuclear reactor and process and device for withdrawing and for installing this instrumentation device
03/20/1990US4909981 Nuclear reactor
03/13/1990US4908221 Irradiator and method of using irradiator to irradiate
02/1990
02/20/1990CA1266134A1 Small natural circulation pressurized water nuclear reactor
02/15/1990DE3826864A1 Liquid metal cooled breeder reactor having an internal fuel star
02/08/1990WO1990001207A1 Nuclear water reactor passive emergency cooling system
02/07/1990EP0353867A1 Full pressure passive emergency core cooling and residual heat removal system for water cooled nuclear reactors
01/1990
01/30/1990US4897240 Nuclear reactor
01/24/1990CN1039141A Forced-natural circulation bath-type heat-supplying reactor
01/17/1990CN1006497B Nuclear reactor
01/16/1990US4894200 Boiling water nuclear reactor, fuel assemblies, control rods
01/10/1990CN1038718A Nature cycling reactor
01/10/1990CN1006406B Steam generator with supplied water dispenser for nuclear power plant
01/03/1990EP0349014A2 Support structure for a nuclear reactor
01/03/1990CN1006338B Fuel composition and unclear reactor
11/1989
11/29/1989EP0344041A1 Nuclear reactor emergency cooling water feeding device
11/29/1989EP0343582A2 Components for constituting a nuclear reactor core, and method of operating a nuclear reactor
11/16/1989DE3822212C1 Nuclear reactor installation consisting of a high-temperature small reactor, a helium/helium heat exchanger and a helium/water heat exchanger
11/16/1989DE3814860A1 Boiling water nuclear reactor having natural circulation
11/07/1989US4879089 Liquid metal cooled nuclear reactors
11/07/1989US4879087 Nuclear power plant
11/07/1989US4879086 Neutron economic reactivity control system for light water reactors
11/02/1989EP0339255A2 Isolation condensor with shutdown cooling system heat exchanger
11/02/1989DE3813018A1 Cylindrical side reflector for nuclear reactors
10/1989
10/19/1989DE3810572A1 Device for radial support of a cylindrical side reflector constructed of graphite blocks
10/03/1989US4871508 Method for operation of a light water boiling reactor
09/1989
09/26/1989CA1260720A1 Nuclear power system
09/20/1989EP0332817A1 Shroud tank and fill pipe for a boiling water nuclear reactor
09/20/1989CN1035736A Super-internal apparatus of reactor having composition guiding device
09/12/1989US4865802 Accumulator
09/06/1989CN1035385A Internal equipements in lower part of nuclear reactor
09/05/1989US4863676 Inherently safe, modular, high-temperature gas-cooled reactor system
09/05/1989US4863675 Nuclear power system
09/05/1989US4863674 Having operating element charging and removal
08/1989
08/30/1989EP0329957A2 Nuclear boiling water reactor upper plenum with lateral throughpipes
08/23/1989EP0329541A1 Nuclear reactor upper internal provisions with cluster guide devices
08/22/1989US4859406 Reactor
08/22/1989US4859402 Bottom supported liquid metal nuclear reactor
08/22/1989US4859400 Nuclear reactor core restraint
08/16/1989EP0328447A1 Nuclear reactor lower internal appliances
08/02/1989EP0325879A1 Fast neutron nuclear reactor comprising an intermediate heat exchanger
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