G - Physics – 21 – C
Patent
G - Physics
21
C
359/30
G21C 19/10 (2006.01)
Patent
CA 1224281
-20- TITLE OF THE INVENTION IMPROVED MULTIPLE FUEL ROD GRIPPER ABSTRACT OF THE DISCLOSURE: Both an apparatus and a process for removing fuel rods from spent fuel assemblies is disclosed herein. The apparatus of the invention includes a locking plate having a plurality of tapered holes registrable with the rods of a fuel rod assembly, a plurality of tapered collets, each of which includes a hollow portion for receiving the ends of the fuel rods, and a plurality of hydraulically operated plungers for withdrawing each of the tapered collets into its respective tapered hole in the locking plate, thereby contracting the hollow portion of the collet around its respective rod in gripping engagement. The use of hydraulic plungers causes each of the collets to apply substantially the same gripping force onto its respective fuel rod. Additionally, the apparatus includes a means for confirming whether each of the collets has grippingly engaged its respective rod.
469805
Oldham And Company
Westinghouse Electric Corporation
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