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US 4,001,856 AGranted
Photographic processing apparatus
OwnerPaul B. Stimsoninventor
Life of this patent
Estimating the term…
Abstract
A film and print processing apparatus comprises a cylindrical tank and a plurality of cylindrical reels having progressively smaller diameters for coaxial mounting within the tank. A film track is disposed helically, longitudinally or circumferentially about each reel and is operative as a guide for winding a film about the reels and as a spacer for holding the film away from the surface of the reels. Exposed photographic sheets are positioned within the reels for print processing.
Claims10
A photographic processing apparatus comprising:
- a. a tank having an internal cylindrical cavity for holding a solution;
- b. at least first reel means and second reel means, each of said first and second reel means being a cylindrical member having open ends, said first reel means coaxially mountable within said internal cylindrical cavity, said second reel means coaxially mountable within said first reel means, said first reel means includes track means that defines a film guide and a film spacer, said second reel means including track means that defines a film guide and a film spacer;
- c. a cap mounted to each open end of said second reel means for sealing said second reel means;
- and
- d. means for sealing said tank, said first reel means and said sealed second reel means totally contained and sealed within said sealed tank.
2 more elements
A photographic processing apparatus comprising:
- a. an open ended cylindrical tank;
- b. means for sealing said cylindrical tank;
- c. at least first reel means and second reel means, said first and second reel means being open ended cylindrical members of substantially equal length, said first reel means coaxially mountable within said cylindrical tank, said second reel means coaxially mountable within said first reel means;
- d. a first track helically disposed about the periphery of said first reel means, said first track defining a guide for winding a film on said first reel means and a spacer for holding a film wound on said first reel means away from the periphery of said first reel means;
- e. a second track helically disposed about the periphery of said second reel means, said second track defining a guide for winding a film on said second reel means and a spacer for holding a film wound on said second reel means away from the periphery of said second reel means;
- and
- f. a pair of caps mounted on the opened ends of said second reel means for sealing said second reel means, said first reel means and said sealed second reel with said caps contained totally and sealed within said sealed tank.
4 more elements
Dependencies are inferred from the claim text.