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Class Information
Number: 376/302
Name: Induced nuclear reactions: processes, systems, and elements > Reactor protection or damage prevention > Core restraint means
Description: Subject matter wherein the effect is the undesired movement of components in the region of the fission fuel bodies which effect is minimized by providing structures or processes to retard such movement.










Sub-classes under this class:

Class Number Class Name Patents
376/304 For moderator structures 10
376/303 In-core restraint means 14


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8532245 Core shroud corner joints Sep. 10, 2013
8385497 Channel confinement method for dry-storage of BWR fuel bundles Feb. 26, 2013
8208597 Channel confinement system and method for dry-storage of BWR fuel bundles Jun. 26, 2012
8077824 Support arrangement Dec. 13, 2011
7995701 Nuclear core component hold-down assembly Aug. 9, 2011
7905017 Method for repairing guide rails of an assembly radially maintaining a support plate of a pressurized water nuclear reactor core Mar. 15, 2011
7668281 Method and tooling for dismantling, casking and removal of nuclear reactor core structures Feb. 23, 2010
7649970 Repair apparatus for a nuclear reactor shroud Jan. 19, 2010
7515673 Method and apparatus for repairing a jet pump diffuser adapter to tailpipe weld Apr. 7, 2009
7505546 Method of preventing separation of feedwater sparger end bracket assemblies Mar. 17, 2009
6683931 Unirradiated nuclear fuel transport system Jan. 27, 2004
6389094 Integral forged shroud flange for a boiling water reactor May. 14, 2002
6343107 Shroud repair apparatus Jan. 29, 2002
6233301 Jet pump sensing line T-bolt clamp electrode discharge machining tool May. 15, 2001
6091791 Shroud attachment for a boiling water reactor Jul. 18, 2000
6067338 Reactor core shroud repair using thermally tensioned links to apply compression across shroud vertical seam weld May. 23, 2000
6055288 Nuclear reactor vessel Apr. 25, 2000
6009137 Mid-shroud joint for a boiling water reactor Dec. 28, 1999
5995574 Integral forged shroud flange for a boiling water reactor Nov. 30, 1999
5991353 Core barrel for a reactor pressure vessel of a nuclear reactor plant and method of repairing a core barrel Nov. 23, 1999
5930320 Assemblies and methods for mitigating effects of reactor pressure vessel expansion Jul. 27, 1999
5905771 Reactor core shroud repair using splice plate to bridge weld seam May. 18, 1999
5864594 Apparatus and method for replacing internal components in a nuclear reactor Jan. 26, 1999
5828713 Replacement core shroud assembly for a boiling water reactor Oct. 27, 1998
5815543 Seismic support with clearance gap and yieldable member Sep. 29, 1998
5802129 Mechanically joined replacement shroud for boiling water nuclear reactor Sep. 1, 1998
5793828 Method and apparatus for repair of nuclear reactor shroud Aug. 11, 1998
5781603 Method and apparatus for repair of nuclear reactor shroud Jul. 14, 1998
5771266 Device for joining together two plates of the baffle assembly of the core of a nuclear reactor Jun. 23, 1998
5742653 Vertical and lateral restraint stabilizer for core shroud of boiling water reactor Apr. 21, 1998
5737379 Reactor core shroud repair using thermally tensioned ring to apply compression across shroud vertical seam welds Apr. 7, 1998
5729581 Core shroud, in particular for cladding a reactor core in a boiling-water nuclear reactor and a method for repairing a core shroud Mar. 17, 1998
5712887 Methods and apparatus for applying a compressive force to a core shroud Jan. 27, 1998
5687206 Method of replacing a boiling water reactor core shroud Nov. 11, 1997
5683216 Spring latching mechanisms for preventing relative movement of assembled components Nov. 4, 1997
5675619 Reactor core shroud repair using splice plate to bridge weld seam Oct. 7, 1997
5659590 Removable shroud and pump deck for a boiling water nuclear reactor Aug. 19, 1997
5623526 Method and apparatus for repair of nuclear reactor shroud Apr. 22, 1997
5621778 Shroud restraint stabilizer Apr. 15, 1997
5600689 Method and apparatus for repairing boiling water reactor shrouds utilizing tie-rods with multiple longitudinal members Feb. 4, 1997
5600690 Method and apparatus for repairing boiling water reactor shrouds utilizing tie-rods and braces Feb. 4, 1997
5588031 Apparatus for reinforcing a reactor vessel core shroud Dec. 24, 1996
5583899 Removable retrofit shroud for a boiling water nuclear reactor and associated method Dec. 10, 1996
5577082 Repaired shroud assembly for a boiling water reactor Nov. 19, 1996
5574760 Method and apparatus for supporting a shroud in a nuclear reactor Nov. 12, 1996
5550883 Vessel of a nuclear reactor, including means for holding its lower internals and method of adjusting the holding means Aug. 27, 1996
5538381 Mechanism for coupling a member to a circular hole in a metal plate Jul. 23, 1996
5538381 Mechanism for coupling a member to a circular hole in a metal plate Jul. 23, 1996
5521951 Reactor core shroud repair with tapered pins May. 28, 1996
5519744 Removable shroud and pump deck for a boiling water nuclear reactor May. 21, 1996

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