Film cassette usable as processing chamber

Details Film cassette usable as processing chamber Film cassette usable as processing chamber

1984-05-02

1985-05-14

Mathews, A. A.

354313, 354338, G03B 1726, G03B 1750, G03D 1302

Patent

active

045168440

ABSTRACT:
A photographic film assemblage including a film cassette having a film spool rotatably supported therein, and a length of self-developing type film coiled about the spool with one of its ends secured to the spool and its other end extending to the exterior of the film cassette for subsequent attachment to a film take-up member of a camera. The spool includes a cylinder and a piston mounted for reciprocating movement within the cylinder. Also located within the cylinder is a supply of processing fluid. After the film has been exposed and rewound into the cassette, the piston is moved deeper into the cylinder to cause the processing fluid to move from the cylinder into an annular chamber which surrounds the cylinder and which contains the film, where it initiates the formation of visible images within the film.

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"The Man Who Fell to Earth" by Walter Tevis, published by Fawcett Publications Inc. in 1963, pp. 27 through 29.
Research Disclosure, Apr. 1980, pp. 132-134, Disclosure No. 19219.

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