Grid for nuclear fuel assembly

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5133927
SERIAL NO

07619973

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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There is disclosed a grid in a nuclear fuel assembly for supporting fuel rods and thimbles, which includes a plurality of elongated straps intersecting perpendicularly with each other to define a plurality of grid cells. A plurality of engaging units are provided on the grid cells for supporting thimbles, respectively. Each engaging unit includes at least one engaging member provided on at least one of the opposite ends of the straps of the grid cell and defining an engaging portion. A plurality of cylindrical sleeves are arranged in the grid cells for supporting thimbles, respectively. Each sleeve has at least one engaging projection associated with the engaging portion of the engaging member. The engaging projection of the sleeve and the engaging portion of the engaging member are formed such that when the sleeve is turned circumferentially, the engaging projection is held in engagement with the engaging portion.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI NUCLEAR FUEL COCHIYODA-KU TOKYO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kadano, Hiroaki Ibaraki, JP 1 6
Obiuchi, Akio Ibaraki, JP 1 6
Tominaga, Koichi Ibaraki, JP 3 27

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