Sealing devices

Material or article handling – Article manipulator moves analogous with human hand – finger,... – Having sealing or radiation shielding means

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B25J 300

Patent

active

042603080

ABSTRACT:
A sealing device for minimizing the leakage of toxic or radioactive contaminated environments through a biological shield along an opening through which a flexible component moves that penetrates the shield. The sealing device comprises an outer tubular member which extends over a length not less than the maximum longitudinal movement of the component along the opening. An inner sealing block is located intermediate the length of the component and is positioned in the bore of the outer tubular member to slide in the bore and effect a seal over the entire longitudinal movement of the component.

REFERENCES:
patent: 2942554 (1960-06-01), Gilchristi
patent: 3164267 (1965-01-01), Jelatis et al.
patent: 3426920 (1969-02-01), Chesley

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