Instant processing film unit with internal dark slide and light

Details Instant processing film unit with internal dark slide and light Instant processing film unit with internal dark slide and light

1977-09-19

1979-04-10

Schilling, Richard

Gas separation: apparatus

Electric field separation apparatus

Plural diverse electric fields

334304, G03C 148, G03D 902

Patent

active

041486501

ABSTRACT:
A preregistered, instant-processing film unit including an internal dark slide removeable from an end section of the unit and a light seal for preventing daylight fogging of the unit from said end section. The film unit includes a photosensitive element for recording a processable latent image. A cover sheet is connected to the photosensitive element and the dark slide is removeably positioned between the element and sheet. The light seal includes a strip coupled to the photosensitive element and folded into the dark slide so that the strip is released by the act of removing the dark slide.

REFERENCES:
patent: 2740714 (1951-06-01), Bachelder et al.
patent: 3053160 (1962-09-01), Bachelder et al.
patent: 3854812 (1974-12-01), Sorli
patent: 4042395 (1977-08-01), Tone et al.

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