Filmstrip projector take-up

Details Filmstrip projector take-up Filmstrip projector take-up

1979-02-22

1980-06-10

Haroian, Harry N.

Optics: image projectors

Selective slide and film strip projector

353DIG2, G03B 2100

Patent

active

042069858

ABSTRACT:
A cylindrical shaped filmstrip take-up chamber is disclosed having an expandable inside cavity for receiving a varying quantity of coiled filmstrip. A cup-shaped film receiving cover closes the chamber and is both pivotally mounted near the midpoint thereof for selectively allowing access to the inside of the take-up chamber and pivotally retained at the bottom thereof allowing the cover to pivot within the confines of the chamber varying the inside volume of the take-up chamber.

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patent: 1893359 (1933-01-01), Davidson
patent: 2243160 (1941-05-01), Koehl
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patent: 2330709 (1943-09-01), Harper et al.
patent: 2364381 (1944-12-01), Mihalyi
patent: 2856812 (1958-10-01), Barron
patent: 3628856 (1971-12-01), Jungiohana
patent: 3715963 (1973-02-01), LeCover
patent: 3771687 (1973-11-01), Krtous
patent: 3953120 (1976-04-01), Badalich et al.
patent: 4060210 (1977-11-01), Norris
patent: 4068809 (1978-01-01), Koester
patent: 4093142 (1978-06-01), Mindell

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