Devices for securing fuel assemblies to nuclear reactor pressure

Details Devices for securing fuel assemblies to nuclear reactor pressure Devices for securing fuel assemblies to nuclear reactor pressure

1982-05-19

1985-09-10

Schafer, Richard E.

Induced nuclear reactions: processes, systems, and elements

Reactor structures

Circulating fluid within reactor

376434, G21C 330, G21C 1910

Patent

active

045405450

ABSTRACT:
A device for securing a fuel assembly to a nuclear reactor pressure vessel comprises upper and lower tie plates for supporting the fuel assembly at its lower and upper ends, spacers for supporting the fuel assembly at intermediate portions between the both tie plates, a channel box surrounding the fuel assembly, and a stationary handle attached to the upper tie plate. A movable handle is attached to the stationary handle to be vertically slidable with respect thereto and the movable handle is always urged downwardly by a coil spring. Hook members are connected to the stationary handle to be rotatable in accordance with vertical movement of the movable handle such that the lower end of the hook member engages with an upper grid of the pressure vessel when the movable handle is lowered to a low portion and disengages therefrom when the movable handle is lifted to an upper position.

REFERENCES:
patent: 2983662 (1961-05-01), Shillitto et al.
patent: 3166481 (1965-01-01), Braun
patent: 3736227 (1973-05-01), Nakazato
patent: 3971575 (1976-07-01), Lesham et al.
patent: 4304631 (1981-12-01), Walton et al.

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