Film cassette

Winding – tensioning – or guiding – Coil holder or support – Spool or core

Patent

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Details

206409, 242197, 354277, G03B 100, G03B 1726, B65D 8567

Patent

active

049133683

ABSTRACT:
A film cassette is disclosed wherein a filmstrip in roll form is stored within the cassette shell and has a leader portion that projects from an exterior end of a film passage slit in the cassette shell to permit the filmstrip to be drawn out of the shell. According to the invention, a tow bar is secured to the leader portion. The tow bar normally is positioned in covering relation with the exterior end of the film passage slit to prevent the leader portion from being moved into the cassette shell and includes an engageable portion which may be engaged in a camera, for example, to separate the tow bar from the cassette shell to draw the filmstrip out of the shell for exposure purposes.

REFERENCES:
patent: 1531182 (1925-03-01), Hartmann
patent: 1676037 (1928-07-01), Lowkrantz
patent: 2537883 (1951-01-01), Ernisse
patent: 3092346 (1963-06-01), Goodell et al.
patent: 3147681 (1964-09-01), Sanderson
patent: 3213775 (1965-10-01), Rehn
patent: 3537376 (1970-11-01), Fleming et al.
patent: 3594512 (1971-07-01), Castagna
patent: 3604657 (1971-09-01), Igarashi
patent: 3690582 (1972-09-01), Duvall
patent: 3943536 (1976-03-01), Oshima
patent: 3980254 (1976-09-01), Coon et al.
patent: 4074870 (1978-02-01), Kaufman
patent: 4383660 (1983-05-01), Richard et al.
patent: 4576279 (1986-03-01), Ferderber
patent: 4746943 (1988-05-01), Kohl
patent: 4832197 (1989-05-01), Hara

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