Induced nuclear reactions: processes – systems – and elements – Handling of fission reactor component structure within... – Refueling machines
Patent
1979-10-12
1982-01-19
Walsh, Donald P.
Induced nuclear reactions: processes, systems, and elements
Handling of fission reactor component structure within...
Refueling machines
294 86A, 414146, G21C 1920
Patent
active
043115578
ABSTRACT:
A refueling machine for inserting and removing fuel assemblies from a nuclear reactor including a pair of concentrically disposed stationary masts mounted on a movable bridge which spans the containment walls of the reactor. The bridge supports a trolley movable transversely to bridge movement thus providing an arrangement wherein the masts can be precisely positioned over a fuel assembly in the reactor core. A hoist mounted on the outer of the masts supports a vertically movable inner mast of a size sufficient to enclose a fuel assembly. An actuator tube inside the inner mast moves gripper fingers on the bottom thereof into engagement with the top nozzle of a fuel assembly prior to lifting it upwardly out of the reactor core.
REFERENCES:
patent: 3691011 (1972-09-01), Krujer
patent: 3948723 (1976-04-01), Andrea
patent: 4086132 (1978-04-01), Meuschke
Hornak Leonard P.
Kowalski Edward F.
Swidwa Kenneth J.
Campbell J. R.
Dermer Z. L.
Walsh Donald P.
Westinghouse Electric Corp.
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