Apparatus for maintenance of nuclear fuel assemblies
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United States of America Patent
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-
Apr 21, 1987
Grant Date -
N/A
app pub date -
Nov 16, 1983
filing date -
Nov 16, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The apparatus is for dismounting nuclear fuel assemblies comprising a skeleton having an upper end piece, a lower end piece, guide tubes connecting the end pieces and fuel rods maintained by grids between the end pieces. The apparatus comprises a cell displaceable vertically in a water tank and provided, at its upper part, with a base plate having an opening for passage of one said fuel assembly and provided with means for gripping an upper part of the bundle of fuel rods. A centering unit is operable by a handling tool and is arranged for gripping the upper end piece of a fuel assembly. The guide tubes may be disconnected from the upper end piece while the bundle of fuel rods is retained in the cell.
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