Film holder for radiographing tubing

Details Film holder for radiographing tubing Film holder for radiographing tubing

1975-01-14

1976-04-20

Smith, Alfred E.

Radiant energy

Invisible radiation responsive nonelectric signalling

Photographic type

250482, G03B 1100

Patent

active

039522040

ABSTRACT:
A film cassette is provided which may be easily placed about tubing or piping and readily held in place while radiographic inspection is performed. A pair of precurved light-impervious semi-rigid plastic sheets, hinged at one edge, enclose sheet film together with any metallic foils or screens. Other edges are made light-tight with removable caps, and the entire unit is held securely about the object to be radiographed with a releasable fastener such as a strip of Velcro.

REFERENCES:
patent: 2494740 (1950-01-01), Boucher
patent: 2905824 (1959-09-01), Thielsch
patent: 2922047 (1960-01-01), Tour
patent: 3119015 (1964-01-01), Kollock
patent: 3168647 (1965-02-01), Kollock
patent: R25079 (1961-11-01), Kollock

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