Photography – Disposable or recyclable camera
Patent
1997-04-14
1998-05-19
Blankenship, Howard B.
Photography
Disposable or recyclable camera
396322, G03B 3500
Patent
active
057548919
ABSTRACT:
A disposable camera having a body which provides a film take-up chamber for containing an initially empty film cartridge, an exposure chamber having an open rear side, and a film supply chamber for containing a film roll pre-exposed with messages on respective frames for subsequent photographic exposure. The camera includes a shutter mechanism to enable photographic exposure, a film-advancing member for moving the film from the film supply chamber to the film take-up chamber across the rear side of the exposure chamber, and an operating mechanism. The operating mechanism includes a sprocket for engaging traction holes of the film extending across the rear side of the exposure chamber for activating the overall operating mechanism upon said movement of the film. The sprocket is formed by an external toothed wheel and an internal member which are co-axially rotatable relative to each other and provided with respective formations which are angularly engageable with each other in only one direction and at a single relative orientation between said wheel and member.
REFERENCES:
patent: 5187512 (1993-02-01), Kirkendall
patent: 5546146 (1996-08-01), Dobbs et al.
patent: 5615396 (1997-03-01), Craig
Blankenship Howard B.
Foster Assets Corporation
LandOfFree
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