Battery containing film cassette wherein removal of last sheet i

Details Battery containing film cassette wherein removal of last sheet i Battery containing film cassette wherein removal of last sheet i

1978-11-06

1980-02-12

Hix, L. T.

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Physical developing

354275, 430496, G03B 1726, G03B 1910

Patent

active

041881052

ABSTRACT:
A photographic film assemblage including a film cassette for housing a battery and a plurality of sheet-like members including several film units. A wall of the cassette is provided with a pair of apertures to enable a pair of contacts in a camera to electrically engage the terminals of the battery. An elongate strip of dielectrical material having a pair of openings therein has one of its ends attached to the last of the sheet-like members to be removed from the film cassette and the pair of holes located between and in alignment with the battery terminals and the pair of apertures. The elongate strip follows the last sheet-like member as it is removed from the film cassette during an exposure cycle thereby moving the pair of openings out of alignment with the battery terminals and the apertures while simultaneously moving a portion of the dielectric material between the battery terminals and the pair of apertures to electrically insulate the battery from the contacts. Alternative embodiments of the invention are also disclosed.

REFERENCES:
patent: 3798669 (1974-03-01), Bachelder
patent: 3988755 (1976-10-01), Vogel

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