Patent
1975-04-21
1976-12-07
Peters, Jr., Joseph F.
354277, 354288, 354315, 354339, G03B 1700
Patent
active
039965953
ABSTRACT:
Photographic camera apparatus for processing exposed film units of the self-developing transparency type including two superposed resilient coiled opaque sheets adjacent the opening thru which exposed film units are advanced from the camera. The sheets are bonded in light tight relation along two opposed edges thereof such that an exposed film unit advancing from the photographic apparatus through the exit opening intervenes between the superpoed sheets. The advancing film unit thereafter operates to uncoil the coiled sheets so as to remain outside the photographic apparatus in light tight relation with respect to ambient light which might otherwise reach the film unit prior to the period required for its complete development. Once the film unit has been developed, the photographer may grasp the leading edge of the film unit and withdraw it from between the opaque sheets afterwhich the resilient sheets automatically assume their coiled state.
REFERENCES:
patent: 2451820 (1948-10-01), Garrett
patent: 2496630 (1950-02-01), Land
patent: 2873658 (1959-02-01), Land
patent: 3748990 (1973-07-01), Erlichman
patent: 3757657 (1973-09-01), Eloranta et al.
patent: 3896469 (1975-07-01), Mather
Peters Jr. Joseph F.
Polaroid Corporation
Roman Edward S.
LandOfFree
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