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Class Information
Number: 376/285
Name: Induced nuclear reactions: processes, systems, and elements > Reactor protection or damage prevention > Expansion means (e.g., shock absorbers, roller bearings)
Description: Subject matter wherein the undesired effect is the deformation of reactor components due to thermal stress which undesired effect is minimized by providing a structure to accommodate such deformation.










Sub-classes under this class:

Class Number Class Name Patents
376/286 Pipe expansion joints 54


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8567353 Assemblies and methods for securing a riser brace Oct. 29, 2013
8565366 Methods and apparatuses for operating and repairing nuclear reactors Oct. 22, 2013
8549748 Tube support system for nuclear steam generators Oct. 8, 2013
8483348 Method of providing a hold-down force upon a nuclear fuel assembly Jul. 9, 2013
8477900 Hold-down spring unit for top nozzle of nuclear fuel assembly having improved hold-down performance and top nozzle for nuclear fuel assembly having the same Jul. 2, 2013
8194815 Apparatus and system for dampening the vibration experienced by an object Jun. 5, 2012
8107585 Fuel rod for a nuclear reactor Jan. 31, 2012
7649970 Repair apparatus for a nuclear reactor shroud Jan. 19, 2010
7272204 Method and apparatus for clamping a riser brace assembly in nuclear reactor Sep. 18, 2007
7023949 Jet pump assembly repair method Apr. 4, 2006
6839396 Control device for a cooling circuit Jan. 4, 2005
6788756 Jet pump set screw wedge Sep. 7, 2004
6744842 Fuel assembly for a pressurized-water reactor Jun. 1, 2004
6738447 High energy absorption top nozzle for a nuclear fuel assembly May. 18, 2004
6647083 Method and apparatus for stiffening a riser brace in nuclear reactor Nov. 11, 2003
6570950 Nuclear plant containment with prefabricated component support structure May. 27, 2003
6567493 Core spray sparger assembly May. 20, 2003
6463114 Jack screw gap replacement device Oct. 8, 2002
6370214 Radiation induced growth indication apparatus for pressurized water reactor nuclear fuel assemblies Apr. 9, 2002
6351511 Local repair of top guide in boiling water reactor by installation of cruciform beam Feb. 26, 2002
6233300 Conical shaped seismic guide pins and mating openings May. 15, 2001
6185269 Liquid metal reactor power block Feb. 6, 2001
6160864 Seismic isolators Dec. 12, 2000
6091791 Shroud attachment for a boiling water reactor Jul. 18, 2000
6052425 Jet pump auxiliary wedge Apr. 18, 2000
5946367 Reactor control rod element Aug. 31, 1999
5930320 Assemblies and methods for mitigating effects of reactor pressure vessel expansion Jul. 27, 1999
5889830 Cooling system for cooling a containment chamber constructed for receiving a core melt Mar. 30, 1999
5883931 Control rod for a nuclear reactor having mounting structures for replacing/rearranging/inverting absorber tubes Mar. 16, 1999
5838751 Core plate repair using guide tube gap wedges Nov. 17, 1998
5815543 Seismic support with clearance gap and yieldable member Sep. 29, 1998
5793828 Method and apparatus for repair of nuclear reactor shroud Aug. 11, 1998
5754612 Joint for interfacing steel head closure and prestressed concrete reactor vessel May. 19, 1998
5742653 Vertical and lateral restraint stabilizer for core shroud of boiling water reactor Apr. 21, 1998
5740216 Vertical seismic isolation structure of common deck system for nuclear reactor components Apr. 14, 1998
5706320 Containment pressure suppression system for liquid metal cooled reactors Jan. 6, 1998
5683216 Spring latching mechanisms for preventing relative movement of assembled components Nov. 4, 1997
5651334 Steam generator lateral support Jul. 29, 1997
5642955 Strongback for remotely installing tie rod assembly in annulus below core spray piping in boiling water reactor Jul. 1, 1997
5640434 Miniaturized nuclear reactor utilizing improved pressure tube structural members Jun. 17, 1997
5621778 Shroud restraint stabilizer Apr. 15, 1997
5617457 Pressurized-water reactor with individually adapted pressure distribution in the coolant Apr. 1, 1997
5610962 Construction of nuclear power plants on deep rock overlain by weak soil deposits Mar. 11, 1997
5600690 Method and apparatus for repairing boiling water reactor shrouds utilizing tie-rods and braces Feb. 4, 1997
5600689 Method and apparatus for repairing boiling water reactor shrouds utilizing tie-rods with multiple longitudinal members Feb. 4, 1997
5583899 Removable retrofit shroud for a boiling water nuclear reactor and associated method Dec. 10, 1996
5570402 Control rod housing support system with radiation shield rings Oct. 29, 1996
5544210 Pressure vessel apparatus for containing fluid under high temperature and pressure Aug. 6, 1996
5502754 Lateral restraint for core plate of boiling water reactor Mar. 26, 1996
5497827 Device for radially holding the bundle envelope and spacer plates of a steam generator by elastically positioned abutments Mar. 12, 1996

1 2 3 4 5










 
 
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