Device for controlling the correct positioning of a film cassett

Details Device for controlling the correct positioning of a film cassett Device for controlling the correct positioning of a film cassett

1979-03-12

1982-03-16

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Detailed holder for photosensitive paper

352222, G03B 2760

Patent

active

043198376

ABSTRACT:
A system for assuring the correct positioning of a film cassette in a cassette holder in a device in which documents are withdrawn from a holder and transported to a position where they are photographed utilizing the film in the cassette, in which at least one suction cup is attached to the cassette holder with the cup having an opening lying in a plane corresponding to the correct position of the cassette in the holder and the suction cup is connected to a vacuum system and a pressure-sensitive device which is responsive to the correct or incorrect position of the cassette in the holder to operate or disable the document withdrawal mechanism or its drive source.

REFERENCES:
patent: 3645619 (1972-02-01), Burton et al.
patent: 3861799 (1975-01-01), Chiswell et al.
patent: 3936185 (1976-02-01), Gross
patent: 4148579 (1979-04-01), Axelrod et al.

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