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Class Information
Number: 376/280
Name: Induced nuclear reactions: processes, systems, and elements > Reactor protection or damage prevention > Core catchers
Description: Subject matter wherein component failure within the fissile and/or fertile region of a reactor is mitigated through the use of a barrier that slows or stops the egress of said components(s) from the region.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8358732 Core catcher, manufacturing method thereof, reactor containment vessel and manufacturing method thereof Jan. 22, 2013
7949084 Passive cooling and arresting device for molten core material May. 24, 2011
7822167 Nuclear facility and method for operating a nuclear facility Oct. 26, 2010
7558360 Core catcher cooling Jul. 7, 2009
6658077 Apparatus for catching and cooling a melt Dec. 2, 2003
6597755 Apparatus and method for installing nuclear reactors Jul. 22, 2003
6353651 Core catcher cooling by heat pipe Mar. 5, 2002
6347129 Container for the collection and spreading of core melt and a nuclear power plant with such a container Feb. 12, 2002
6285727 Nuclear plant Sep. 4, 2001
6195405 Gap structure for nuclear reactor vessel Feb. 27, 2001
6192097 Device for retaining a hot melt in particular a core melt-through inside the spreading chamber of a nuclear reactor installation Feb. 20, 2001
5946366 Nuclear reactor with a collection chamber for core melt Aug. 31, 1999
5930319 Nuclear reactor with a core melt propagation space provided with a coolant conduit leading to a coolant reservoir Jul. 27, 1999
5907588 Device for collecting core melt from a reactor pressure vessel May. 25, 1999
5889830 Cooling system for cooling a containment chamber constructed for receiving a core melt Mar. 30, 1999
5867548 Device and method for collecting and cooling reactor-meltdown products Feb. 2, 1999
5825838 Reactor flooding system for a retaining molten core materials in a reactor vessel by the improved external vessel cooling capability Oct. 20, 1998
5815542 Device for collecting reactor-meltdown products from a reactor pressure vessel Sep. 29, 1998
5712886 Device for detecting and monitoring perforation of the bottom head of the vessel of a nuclear reactor Jan. 27, 1998
5703917 Closing device for initiating cooling for a core melt Dec. 30, 1997
5699394 Thermal insulating barrier and neutron shield providing integrated protection for a nuclear reactor vessel Dec. 16, 1997
5689538 Device and method for recovering and cooling the molten core of a nuclear reactor Nov. 18, 1997
5659589 Device for collecting and cooling reactor-meltdown products Aug. 19, 1997
5652775 Method and device for detecting and monitoring perforation of the vessel bottom head of a nuclear reactor Jul. 29, 1997
5465280 Pressure vessel apparatus Nov. 7, 1995
5410577 Core-melt source reduction system Apr. 25, 1995
5402456 Nuclear reactor system and method for operating the same Mar. 28, 1995
5349615 Core melt-through retention device for light-water reactors Sep. 20, 1994
5347556 Corium shield Sep. 13, 1994
5343506 Nuclear reactor installation with a core catcher device and method for exterior cooling of the latter by natural circulation Aug. 30, 1994
5343505 Device for the recovery of a molten core of a nuclear reactor Aug. 30, 1994
5315625 Method for protecting the base of the reactor container in nuclear power plants, and a device for implementing the method May. 24, 1994
5307390 Corium protection assembly Apr. 26, 1994
5280509 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 Jan. 18, 1994
5263066 Nuclear reactor equipped with a core catcher Nov. 16, 1993
5192494 Arrangement for protecting reactor containment integrity Mar. 9, 1993
5186888 Device for recovering and cooling the core of a nuclear reactor in meltdown following Feb. 16, 1993
5167909 Lower connector of a fuel assembly of a nuclear reactor cooled by light water Dec. 1, 1992
5080857 Passive lower drywell flooder Jan. 14, 1992
5057271 Protection system for the basemat reactor containment buildings in nuclear power stations Oct. 15, 1991
5049352 Nuclear reactor melt-retention structure to mitigate direct containment heating Sep. 17, 1991
4978496 Arrangement to prevent the molten core of a nuclear reactor from penetrating into the ground Dec. 18, 1990
4650642 Heat dissipating nuclear reactor with metal liner Mar. 17, 1987
4643870 Heat dissipating nuclear reactor Feb. 17, 1987
H91 Safety apparatus for nuclear reactor to prevent structural damage from overheating by core debris Jul. 1, 1986
4584802 Protective structure for the floor of a concrete enclosure having to contain a high temperature fluid Apr. 29, 1986
4464333 Molten core retention and solidification apparatus Aug. 7, 1984
4442065 Retrofittable nuclear reactor core catcher Apr. 10, 1984
4412969 Combination pipe rupture mitigator and in-vessel core catcher Nov. 1, 1983
4343762 Safety device for nuclear fission reactors Aug. 10, 1982

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