Closure arrangement for closing a wall opening in a nuclear faci

Details Closure arrangement for closing a wall opening in a nuclear faci Closure arrangement for closing a wall opening in a nuclear faci

1983-10-12

1986-06-03

Anderson, Bruce C.

Radiant energy

Radiation controlling means

Shields

376287, G21F 304

Patent

active

045932018

ABSTRACT:
The invention relates to a radiation-shielding closure arrangement wherein closure body closes off an opening in a wall between two mutually adjacent large-area cells of a nuclear facility. When the closure body is in the closed position, the cell adjacent the cell wherein radiation is present is shielded against the radiation. If one of the cells contains a cell crane and is at the same time a prohibited area because of radiation present therein, the adjacent cell is configured to be an access cell so that maintenance work on the cell crane can be conducted there. The opening in the partition wall between the two cells must be closed during the time that the maintenance work on the crane is performed. For this reason the closure body is mounted on a horizontal rail track for movement therealong. The outer profile of the closure body fits snugly in the inner profile of the wall opening or overlaps the wall opening completely.

REFERENCES:
patent: 3200043 (1965-08-01), Franco et al.
patent: 3785925 (1974-01-01), Jones
patent: 3972420 (1976-08-01), Stock et al.

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