Self-developing film pack with improved spread control structure

Details Self-developing film pack with improved spread control structure Self-developing film pack with improved spread control structure

1979-04-02

1980-10-07

Griffin, Donald A.

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Physical developing

354 86, 354276, 354304, 430499, G03B 1910, G03B 1750, G03B 1702, G03C 148

Patent

active

042265193

ABSTRACT:
A film pack, for use in a self-developing camera, including a film container having improved processing fluid spread control structure embodied in an extended forward wall portion of the container adjacent a film withdrawal slot to locate a spread control surface thereon in closer relation to a pair of pressure rollers in the camera. Although the forward wall is extended, the longitudinal dimension of the container, near its rear wall, has been maintained so that the improved pack will fit existing cameras. Also, the leading end wall of the container has been angled or sloped to improve the upward feed of film units toward an exposure position in the container. An alternative embodiment is disclosed.

REFERENCES:
patent: Re29756 (1978-09-01), Gold
patent: 3714879 (1973-02-01), Land et al.
patent: 3750551 (1973-08-01), Land et al.
patent: 3779770 (1973-12-01), Alston et al.
patent: 3832731 (1974-08-01), Kinsman
patent: 3948662 (1976-04-01), Alston et al.
patent: 3979762 (1976-09-01), Hendry et al.
patent: 4005446 (1977-01-01), Friedman
patent: 4016582 (1977-04-01), Wareham
patent: 4052728 (1977-10-01), Hendry et al.
patent: 4134655 (1979-01-01), Friedman

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