Method of and apparatus for removing exposed film from cartridge

Details Method of and apparatus for removing exposed film from cartridge Method of and apparatus for removing exposed film from cartridge

1995-06-02

1996-09-10

Rutledge, D.

354321, 354340, G03D 308

Patent

active

055550665

ABSTRACT:
An apparatus for developing films confined in cartridges has a lightproof housing which accommodates a developing bath. Two chambers are located in the housing upstream of the developing bath, and each has a holder for a film cartridge. Transporting rollers are associated with each chamber and serve to withdraw films from cartridges and convey the films toward the developing bath along respective paths. These paths merge into a third path which extends through the developing bath. A first film cartridge is placed in a first one of the chambers, and the chamber is closed with a cover to seal the chamber from light. A control unit locks the cover and activates the transporting rollers for the first chamber so that the film in the first cartridge is unwound and conveyed into the developing bath. Meanwhile, a second film cartridge is placed in the second chamber which is likewise closed with a cover. A sensor signals the control unit when the withdrawal of film from the first cartridge has been completed. The control unit then unlocks the cover and stops the transporting rollers for the first chamber while locking the cover and starting the transporting rollers for the second chamber. The film from the second cartridge is thereupon conveyed into the developing bath closely behind the film from the first cartridge.

REFERENCES:
patent: 4362376 (1982-12-01), Otani
patent: 4843430 (1989-06-01), Huber et al.
patent: 5049915 (1991-09-01), Nakamura et al.
patent: 5053805 (1991-10-01), Sakai et al.
patent: 5308005 (1994-05-01), Hutteman et al.

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