Photography – Disposable or recyclable camera
Patent
1996-02-27
1998-04-07
Metjahic, Safet
Photography
Disposable or recyclable camera
396284, 396396, 396411, G03B 110, G03B 1718
Patent
active
057376409
ABSTRACT:
A film drive gear has a thumbwheel that is rotated by a camera user and also has a shutter cam surface that rotates with the thumbwheel to reset a shutter mechanism and has a film metering cam surface that rotates with the thumbwheel to release a film metering mechanism. The shutter cam surface and the film metering cam surface are axially separated along a shaft of the film drive gear that extends outwardly from the thumbwheel. The drive gear can include a toothed sprocket that actuates a film transport mechanism such that revolution of the thumbwheel rotates the toothed sprocket and moves the photographic film a predetermined distance. The thumbwheel also can be provided with an outer circumferential surface that is coupled to an exposure counter wheel having frame index numbers such that a predetermined number of revolutions of the thumbwheel moves the exposure counter wheel by one frame index number relative to the thumbwheel.
REFERENCES:
patent: 2309382 (1943-01-01), Cazin
patent: 3868710 (1975-02-01), Van Osch
patent: 5410378 (1995-04-01), Tasaka et al.
patent: 5541690 (1996-07-01), Petruchik
Alligood John Horace
Petruchik Dwight John
Zander Dennis Roland
Bilinski Peter J.
Eastman Kodak Company
Han J. K.
Metjahic Safet
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