Photography – Camera detail – Detachable or removable film holder unit
Patent
1996-11-06
1999-04-06
Blankenship, Howard B.
Photography
Camera detail
Detachable or removable film holder unit
242348, G03B 1776
Patent
active
058930019
ABSTRACT:
A film cassette having perforated film for permitting automated extension of the film, the film cassette comprises a core having the film convolutedly wound on the core. A rotatable drum receives the core, and includes a recessed slot and a projection which engages a perforation of the film for permitting motion of the film as the drum is rotated. A shell receives the drum, and includes an opening and a finger that matingly engages the recessed slot of the drum for forcing the film through the opening of the shell and, consequently, out of the film cassette.
REFERENCES:
patent: 446373 (1891-02-01), Whitney
patent: 1527476 (1925-02-01), Gianetto
patent: 3037719 (1962-06-01), Bemmann
patent: 3143050 (1964-08-01), Winkler et al.
patent: 4779110 (1988-10-01), Stella
patent: 5265821 (1993-11-01), Takatori
patent: 5522563 (1996-06-01), Earnhart et al.
patent: 5570152 (1996-10-01), Kaya
Breen John J.
Fraser Mark D.
Pagano Daniel M.
Robertson Jeffrey C.
Blankenship Howard B.
Eastman Kodak Company
Watkins Peyton C.
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