Film assemblage having film releasably attached to film spool

Details Film assemblage having film releasably attached to film spool Film assemblage having film releasably attached to film spool

1980-12-29

1982-06-15

Griffin, Donald A.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 742, G03B 1726, B65H 7528

Patent

active

043347509

ABSTRACT:
A photographic film assemblage including a film cassette having a hollow spool or core upon which a strip of film is wound. An end portion of the film is releasably secured to the spool by a release member mounted within the spool. The release member is adapted to prevent the end portion of the film from being detached from the spool during exposure of the film in a camera and to release its hold upon the end portion of the film upon the film assemblage being placed within a film processor, whereby the strip of film may be completely unwound from the spool during processing of the film.

REFERENCES:
patent: 1930144 (1933-10-01), Lee
patent: 2481665 (1949-09-01), Henne
patent: 3550877 (1970-12-01), Sutliff et al.
patent: 3602451 (1971-08-01), Dolby
patent: 3978495 (1976-08-01), Warscheit
patent: 4145133 (1979-03-01), Wareham

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