Film cassette with frangible spool lock and cam

Details Film cassette with frangible spool lock and cam Film cassette with frangible spool lock and cam

1992-07-06

1993-12-28

Gellner, Michael L.

G03B 1726

Patent

active

052744124

ABSTRACT:
A film cassette has frangible means that initially operates as a spool lock and as a cam for moving a blocking device in a camera out of the way of the cassette when the cassette is first loaded into the camera but which when broken by a fracturing device in the camera is rendered inoperative as a spool lock and as a cam.

REFERENCES:
patent: 4682870 (1987-07-01), Atkinson
patent: 4987437 (1991-01-01), Pagano et al.
patent: 4994828 (1991-02-01), Smart
patent: 4994833 (1991-02-01), Cocca
patent: 4998123 (1991-03-01), Smart
patent: 5032854 (1991-07-01), Smart et al.
patent: 5032861 (1991-07-01), Pagano
patent: 5032862 (1991-07-01), Behnke
patent: 5047794 (1991-09-01), Pagano et al.

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