Fuel channel closure and adapter

G - Physics – 21 – C

Patent

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G21C 19/02 (2006.01) G21C 1/20 (2006.01) G21C 13/067 (2006.01)

Patent

CA 1192679

FUEL CHANNEL, CLOSURE AND ADAPTER ABSTRACT OF THE DISCLOSURE A mechanically actuated ram/closure combination particularly suited for use with the pressure tubes of a nuclear reactor such as the Candu reactor, for on-load refue11ing incorporates a positive latching arrangement to ensure latching of the tube closure in the closed position, and serving also to retain the closure secured to the ram of a refuelling machine during the refuelling cycle. The improved arrangement may also be provided with the capability of enabling partial insertion of the closure into a positively secured, partial sealing condition of the pressure tube, with disengagement of the fuelling machine ram therefrom, to permit withdrawal of the refuelling machine. The combination ram/closure also incorporates a deformation-limiting load bar as part of the ram, rather than requiring the provision of a load bar on each closure as heretofore.

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