Induced nuclear reactions: processes – systems – and elements – Fuel component structure – Plural fuel segments or elements
Patent
1985-10-23
1987-12-29
Terapane, John F.
Induced nuclear reactions: processes, systems, and elements
Fuel component structure
Plural fuel segments or elements
376245, 376450, 29523, 29723, 292835, G21C 332, B21D 3900
Patent
active
047160179
ABSTRACT:
An insert for providing a reduced inside diameter for a structural tube, specifically an instrumentation guide tube, of a nuclear fuel assembly. The insert has forming lobes which coact with the structural tube to plastically deform the structural tube and mechanically lock it with respect to grid straps of a grid assembly. The insert also has centering lobes to prevent it from being expanded in other than a coaxial alignment with the structural tube. An expansion tool is provided for sequentially registering with and expanding sequential forming lobes in a simplified manner whereby all of the operations necessary to assemble the structural tube in the fuel assembly can be easily and accurately performed.
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patent: 3375670 (1968-04-01), Serota
patent: 3674292 (1972-07-01), Demler, Sr.
patent: 3885298 (1975-05-01), Pogonowski
patent: 4182152 (1980-01-01), Vaill et al.
patent: 4229259 (1980-10-01), Vaill et al.
Maples John S.
Terapane John F.
Westinghouse Electric Corp.
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