Radiant energy – Radiation controlling means – Shields
Patent
1994-05-12
1995-05-16
Berman, Jack I.
Radiant energy
Radiation controlling means
Shields
2505061, 376203, G21C 1900
Patent
active
054163340
ABSTRACT:
An apparatus is provided for moving shielding plugs into and out of holes in concrete shielding walls in hot cells for handling radioactive materials without the use of external moving equipment. The apparatus provides a means whereby a shield plug is extracted from its hole and then swung approximately 90 degrees out of the way so that the hole may be accessed. The apparatus uses hinges to slide the plug in and out and to rotate it out of the way, the hinge apparatus also supporting the weight of the plug in all positions, with the load of the plug being transferred to a vertical wall by means of a bolting arrangement.
REFERENCES:
patent: 3801448 (1974-04-01), Brandstetter et al.
patent: 3920512 (1975-11-01), Sutherland
patent: 4236971 (1980-12-01), Winkleback
patent: 4610839 (1986-09-01), Geier et al.
patent: 4866286 (1989-09-01), Bnatz et al.
patent: 4876593 (1989-10-01), Bauer et al.
Knapp Philip A.
Manhart Larry K.
Berman Jack I.
Beyer James
Caress Virginia B.
Gottlieb Paul A.
Moser William R.
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