US Patent No: 4,873,051

Number of patents in Portfolio can not be more than 2000

Nuclear fuel grid outer strap

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Importance

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Abstract

A nuclear fuel assembly grid comprising an improved outer grid strap wherein abutting outer grid strap segments are joined at a point of intersection with an inner grid strap. The normally preformed weld where the inner strap fork tines extend through the outer grid strap thereby fixedly bonds the outer grid strap segments together.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
WESTINGHOUSE ELECTRIC CORP.PITTSBURGH, PA4661

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Craver, James E Lexington, SC 1 7
Duncan, Robert San Jose, CA 38 257

Cited Art

Patent Info (Count) # Cites Year
 
WESTINGHOUSE ELECTRIC CORP. (8)
4,521,374 Fuel grid with sleeves welded in notched grid straps 15 1982
4,541,055 Laser machining system 23 1982
4,585,615 Nuclear fuel spacer grid with improved grid straps 14 1983
4,585,616 Nuclear fuel spacer grid with improved outer straps 23 1983
4,576,786 Partial grid for a nuclear reactor fuel assembly 19 1983
4,716,015 Modular nuclear fuel assembly design 8 1985
4,709,909 Retention strap in a grid assembly fixture 1 1985
4,708,845 BWR fuel assembly with improved spacer and fuel bundle design for enhanced thermal-hydraulic performance 22 1986
 
COMMISSARIAT A L'ENERGIE ATOMIQUE (2)
4,221,636 Grids for bringing about the spacing of a group of sheathed fuel rods in a nuclear reactor 12 1978
4,636,606 Method and apparatus for producing a reactor spacing grid by pulse laser welding 8 1983
 
GENERAL ELECTRIC COMPANY (2)
4,314,884 Nuclear fuel assembly 10 1979
4,357,298 Nuclear fuel assembly space arrangement 17 1980
 
KRAFTWERK UNION AKTIENGESELLSCHAFT (2)
4,486,384 Fuel assembly for a nuclear reactor 2 1981
4,683,115 Nuclear reactor fuel assembly 11 1984
 
BRITISH NUCLEAR FUELS PLC (1)
4,351,795 Grids for nuclear fuel assemblies 6 1980
 
BWX TECHNOLOGIES, INC. (1)
4,388,269 Spacer grid corner gusset 9 1980
 
ENERGY, UNITED STATES DEPARTMENT OF (1)
4,714,585 Interlocking egg-crate type grid assembly 14 1985
 
HITACHI, LTD. (1)
4,686,079 Fuel assembly 14 1985

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
WESTINGHOUSE ELECTRIC CO. LLC (2)
6,606,369 Nuclear reactor with improved grid 6 2002
6,819,733 Fuel assembly and associated grid for nuclear reactor 4 2002
 
FRAMATOME ANP, INC. (1)
6,934,351 Boiling water reactor fuel assembly 1 2002
 
FRAMATOME, TOUR FIAT (1)
5,154,879 Fuel assembly of a nuclear reactor comprising a device for retaining particles contained in the cooling fluid of the reactor 4 1990
 
MITSUBISHI NUCLEAR FUEL CO. (1)
5,133,927 Grid for nuclear fuel assembly 4 1990
 
SIEMENS NUCLEAR POWER CORPORATION (1)
5,278,883 Low pressure drop spacer for nuclear fuel assemblies 6 1992
 
WESTINGHOUSE ELECTRIC CORP. (1)
5,859,887 Nuclear fuel assembly support grid 3 1997