US Patent No: 4,699,760

Number of patents in Portfolio can not be more than 2000

Fuel assembly skeleton with structural and non-structural top nozzle/guide thimble joints

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Abstract

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A fuel assembly skeleton includes a top nozzle, a number of longitudinally-extending guide thimbles having upper ends, a number of joints interconnecting the top nozzle and the upper ends of the guide thimbles. All but a few of the joints are structural joints providing rigid connections between all but a corresponding few of the guide thimble upper ends and the top nozzle. Each of the other few joints is a non-structural joint providing a non-rigid connection between a guide thimble upper end and the top nozzle. The number of structural joints constitutes at least a substantial majority of the joints and, in any event, the number is at least three times the number of non-structural joints. Each non-structural joint is composed of a hollow sleeve rigidly connected to the top nozzle and disposed in a slip fit relationship about the guide thimble upper end. The sleeve is bulge fitted in a passageway defined in the top nozzle.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
WESTINGHOUSE ELECTRIC CORP.PITTSBURGH, PA4652

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ferlan, Stephen J Wilkins Twp., PA 24 210
Shallenberger, John M Pittsburgh, PA 27 232

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Combustion Engineering, Inc. (2)
4,557,891 Pressurized water reactor flow arrangement 3 1982
4,584,168 System for controlling destructive vibration of a nuclear control rod 10 1983
 
ENERGY, UNITED STATES DEPARTMENT OF (1)
4,515,750 Sealing coupling 27 1982
 
Framatome (1)
4,535,523 Fuel assemblies for nuclear reactors 11 1983
 
FRAMATOME & CIE TOUR FIAT (1)
4,522,782 Fuel assembly for a nuclear reactor 7 1982
 
Westinghouse Electric Corp. (1)
4,572,816 Reconstituting a nuclear reactor fuel assembly 14 1983

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
AREVA NP INC. (2)
7,551,705 Fuel assembly top nozzle repair sleeve and method for repairing a fuel assembly 0 2003
7,424,084 Fuel assembly nozzleless handling tool and method 0 2007
 
Combustion Engineering, Inc. (1)
4,792,429 Spring retention cap 11 1987
 
Framatome (1)
4,999,154 Demountable fuel assembly for a nuclear reactor cooled by light water 0 1989
 
FRAMATOME ANP, INC. (1)
7,239,683 Fuel assembly nozzleless handling tool and method 0 2003
 
Westinghouse Electric Corp. (1)
5,363,423 Quick release top nozzle assembly 4 1993