Film cassette

Details Film cassette Film cassette

1981-10-27

1985-01-15

Gonzales, John

354281, 354284, G03B 1732

Patent

active

044935455

ABSTRACT:
A cassette for sheet film has a cover and a bottom which are hinged to one another along a longitudinal edge of the cassette. Locking elements for locking the cover and bottom when the cassette is closed are arranged at the opposite longitudinal edge of the cassette. The cover and bottom cooperate to define a film compartment and the bottom has a rigid, flat wall for supporting a sheet of film. The cover has a window for exposing the film in the compartment and is further provided with a slot which slidably receives a shield for protecting the film against light until such time as the film is to be exposed. A resilient rim is mounted on the cover and extends around the window. The rim is arranged to press the margins of the film against the rigid wall of the bottom when the cassette is closed. The hinged connection of the cover and the bottom causes the rim to contact the film progressively as the cassette is closed so that the rim stretches the film flat over the rigid wall of the bottom. The pressure of the rim on the margins of the film after the cassette has been closed insures that the film remains flat regardless of the orientation of the cassette.

REFERENCES:
patent: 271826 (1883-02-01), Flammang
patent: 1933823 (1933-11-01), Nagel et al.
patent: 2339658 (1944-01-01), Smith
patent: 3537376 (1970-11-01), Fleming
patent: 3695424 (1972-10-01), Cristy et al.
patent: 4110624 (1978-08-01), Conteas

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