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US 4,586,803 AGranted
Developing drum
AssigneeCiba-Geigy Corporation
InventorsBrian F. Moss, Ian B. Pilkington, Richard J. Brent
Life of this patent
Estimating the term…
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AssigneeCiba-Geigy Corporation
InventorsBrian F. Moss, Ian B. Pilkington, Richard J. Brent
Estimating the term…
Apparatus is described for the processing of a film contained in a cassette. The cassette comprises a substantially cylindrical body formed with a light-tight, longitudinally extending film exit slot, end caps to the body and a spool held between the caps and having the film wound thereon. The apparatus comprises a light-tight enclosure, preferably in the form of a columnar body, provided with means shaped to receive and retain the cassette body and provided with a space sufficiently large to receive from the cassette the spool with the film wound thereon. A plunger is provided for engaging the spool of the cassette and for moving it to force an end cap off the cassette body and to move the spool and the film wound thereon into said space where the film can be treated with processing liquid. The processing liquid may be present in the space or can be introduced into it and drained from it through light-tight channels and/or passages. The plunger may pass through a lid of the enclosure or be fixed to it. Rotation in both directions of the plunger in the apparatus causes the film to wind and unwind in the spool and to be washed evenly with processing liquid.
An apparatus for the processing of a film contained in a cassette, the cassette being of the kind comprising a substantially cylindrical body formed with protruding light-tight, longitudinally extending film exit slot means, end caps to said body and a spool held between said end caps and having the film wound thereon, said apparatus comprising a light-tight enclosure, means therein shaped to receive and retain said cassette body and having a space sufficiently large to receive from said cassette the spool with the film wound thereon, and a plunger adapted for engaging the spool of said cassette and being movable to force one of said end caps off said cassette body and to move said spool and the film wound thereon out of said cassette body and into said space, said space being adapted for containing liquid for processing the film.
The apparatus of claim 11, wherein said film has sprocket holes and said block comprises engaging means adapted for engaging a sprocket hole of said film.
Dependencies are inferred from the claim text.