Multiple function nuclear handling apparatus

Details Multiple function nuclear handling apparatus Multiple function nuclear handling apparatus

1975-01-31

1976-11-09

Feinberg, Samuel

214 18N, 176 30, 176 36W, B66C 1700, G21C 1920

Patent

active

039905918

ABSTRACT:
The apparatus comprises a single mast assembly which accomplishes all of the functions which presently require the use of three handling masts, one for fuel assemblies, one for control rods and other long rods, and one for orifice rods. The assembly, in its preferred form, includes a long primary mast secured at its upper end to a handling bridge to depend vertically therefrom, a much shorter working mast vertically movably mounted within the primary mast, and a control rod grapple shank vertically movably mounted within the working mast and of about the same length. The working mast can be lowered onto a fuel assembly and connected to it by gripper latches to lift the fuel assembly and move it to or from the reactor core or other locations, after raising it within the primary mast for protection. The grapple shank can be lowered within the working mast until a grapple at its lower end contacts and connects to the head of a control rod bundle and can then be raised to lift the bundle into the working mast and the working mast into the primary mast for similar transfers. Stops and detents are provided to cause the grapple shank to rise only a short distance within the working mast to house the very short orifice rods and then raise the working mast up within the primary mast. In addition, the grapple shank can be connected to the control rod bundle and the working mast can be connected to the fuel assembly, after which the rods are raised into the working mast and the fuel assembly is raised into the primary mast. After transport, the fuel assembly and the rod bundle can then be set down in different locations.

REFERENCES:
patent: 2274168 (1942-02-01), Scharpenberg
patent: 2901219 (1959-08-01), Bottje et al.
patent: 3229960 (1966-01-01), Loomis
patent: 3691011 (1972-09-01), Kruger et al.
patent: 3713971 (1973-01-01), Van Santen et al.
patent: 3733250 (1973-05-01), Van Santen et al.
patent: 3768668 (1973-10-01), Schukei
patent: 3856621 (1974-10-01), Suvanto et al.
patent: 3904048 (1975-09-01), Van Santen et al.

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