Photographic camera having a double exposure protection device c

Details Photographic camera having a double exposure protection device c Photographic camera having a double exposure protection device c

1997-10-24

1998-09-15

Metjahic, Safet

Photography

Having camera indicator

Film condition indicator

396285, 396515, 396516, 396538, G03B 1718, G03B 1726

Patent

active

058093524

ABSTRACT:
A camera for use with a film cartridge having a retractable lip portion that is retracted upon exposure of film in the cartridge, and that is fully extended before exposure of the film, the camera comprises a camera body for forming a protective enclosure. A double exposure hook is disposed in the camera body that latches onto a recess in the retractable lip portion when the film is exposed upon insertion of the cartridge into the camera body for preventing double exposure of the film, and that is forced outwardly upon insertion of the film cartridge when the film is not exposed for permitting the cartridge to be fully inserted. A movable element includes a first position that obstructs viewing through a viewfinder when the cartridge is not inserted, and that is moved to a second position by the double exposure hook upon insertion of the cartridge for permitting viewing through a viewfinder.

REFERENCES:
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patent: 4077041 (1978-02-01), Imura
patent: 4334753 (1982-06-01), Harvey
patent: 4994828 (1991-02-01), Smart
patent: 5047794 (1991-09-01), Pagano et al.
patent: 5296887 (1994-03-01), Zander
patent: 5625432 (1997-04-01), Omi
patent: 5654788 (1997-08-01), Kuhn, Jr.

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