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Class Information
Number: 376/441
Name: Induced nuclear reactions: processes, systems, and elements > Fuel component structure > Plural fuel segments or elements > In pack or bundle > Including grid > With nonintegral fuel element contacting means
Description: Subject matter wherein the grid is provided with a separable component and this component is utilized to contact and maintain the fuel pins in the spaced apart array.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8693612 Unit spacer grid strap, unit spacer grid, and spacer grid for nuclear fuel rods Apr. 8, 2014
8644445 Spring mounting device for nuclear fuel rod Feb. 4, 2014
8483349 Spacer grid for dual-cooling nuclear fuel rods using intersectional support structures Jul. 9, 2013
8374308 Helically fluted tubular fuel rod support Feb. 12, 2013
8358733 Helically fluted tubular fuel rod support Jan. 22, 2013
7995701 Nuclear core component hold-down assembly Aug. 9, 2011
7792236 Fuel assembly and plug-in distance element Sep. 7, 2010
7787584 Debris filtering bottom spacer grid with louvers for preventing uplift of fuel rods Aug. 31, 2010
7769125 Spacer grid for nuclear reactor fuel assemblies Aug. 3, 2010
7623612 Bi-alloy spacer grid and associated methods Nov. 24, 2009
7577229 Method for limiting the maintenance loads applied to a fuel assembly of a nuclear reactor and fuel assembly Aug. 18, 2009
7561654 Nuclear fuel spacer assembly with debris guide Jul. 14, 2009
7555093 Spacer for a fuel assembly of a boiling water reactor Jun. 30, 2009
7149273 Method of fabricating a nuclear reactor fuel assembly grid Dec. 12, 2006
7085340 Nuclear reactor fuel assemblies Aug. 1, 2006
6914955 Heat exchanger tube support structure Jul. 5, 2005
6810101 Heat exchanger tube support structure Oct. 26, 2004
6744842 Fuel assembly for a pressurized-water reactor Jun. 1, 2004
6735268 Fuel spacer/water rod capture apparatus and methods for boiling water nuclear reactors May. 11, 2004
6707872 Spacer grid for nuclear reactor fuel assemblies with grid springs maintaining conformal contact with fuel rods and enlarged elastic range Mar. 16, 2004
6650723 Double strip mixing grid for nuclear reactor fuel assemblies Nov. 18, 2003
6542567 Grid for nuclear fuel assembly and a strap for such a grid Apr. 1, 2003
6519309 Pressurized water reactor fuel assembly spacer grid Feb. 11, 2003
6498827 Heat exchanger tube support structure Dec. 24, 2002
6473482 Spacer with specially fastened springs for fuel assemblies of nuclear reactors Oct. 29, 2002
6415011 Spacer and a fuel assembly for a nuclear boiling water reactor Jul. 2, 2002
6385271 Nuclear fuel assembly May. 7, 2002
6310931 Device and method for locking rods in a bottom tie plate of a fuel assembly Oct. 30, 2001
6285729 Fuel spacer/water rod capture apparatus and methods for boiling water nuclear reactors Sep. 4, 2001
6226342 Fuel assembly comprising a component for retaining elongated elements May. 1, 2001
6167105 Spacer grid with H-spring for fuel rods for use in nuclear reactor fuel assemblies Dec. 26, 2000
5966419 Spacing grid of a fuel assembly for a nuclear reactor and fuel assembly Oct. 12, 1999
5898750 Nested sleeve grid restraint system Apr. 27, 1999
5815545 Nuclear fuel assembly spacer and spring Sep. 29, 1998
5732116 Spacer grid of a fuel assembly for a nuclear reactor, including attached springs Mar. 24, 1998
5675621 Reduced height flat spring spacer for nuclear fuel rods Oct. 7, 1997
5610960 Fuel spacer and fuel assembly Mar. 11, 1997
5577081 Method of forming grids for nuclear fuel assembly and grids formed by same method Nov. 19, 1996
5566217 Reduced height spacer for nuclear fuel rods Oct. 15, 1996
5539792 Grid-shaped spacer for a nuclear-reactor fuel assembly Jul. 23, 1996
5530729 Fuel assembly and spacer for a boiling reactor Jun. 25, 1996
5515408 Fuel assembly May. 7, 1996
5490192 Fuel assembly Feb. 6, 1996
5490191 BWR nuclear fuel assembly Feb. 6, 1996
5488644 Spring assemblies for adjoining nuclear fuel rod containing ferrules and a spacer formed of the spring assemblies and ferrules Jan. 30, 1996
5465282 Fuel assembly for a nuclear reactor Nov. 7, 1995
5440599 Spacer grid with integral "side supported" flow directing vanes Aug. 8, 1995
5375154 Reduced pressure drop spacer for boiling water reactor fuel bundles Dec. 20, 1994
5361288 Spacer with integral zircaloy springs Nov. 1, 1994
5327472 Boiling water nuclear reactor and nuclear reactor fuel assembly for the boiling water reactor Jul. 5, 1994

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