Photographic material processor

Details Photographic material processor Photographic material processor

1992-08-21

1994-07-26

Rutledge, D.

G03D 302

Patent

active

053330269

ABSTRACT:
A photographic material processor which having at least two processing tanks for solutions used in the processing of photographic material, and one positive displacement pump for each processing solution for transferring concentrated processing solution and water to said processing tanks, the processor also comprising means for connecting each pump to a concentrated solution container and to a water source by a two-way valve, means for measuring the area of photographic material processed and means for activating the said pumps when a predetermined area of photographic material has been processed to perform a replenishment cycle, means for directing the liquid flow in each two-way valve so that during each replenishment cycle a predetermined volume of concentrate processing solution and a predetermined volume of water are pumped to the processing tanks by each PUMP.

REFERENCES:
patent: 4002267 (1977-01-01), Aelterman et al.
patent: 4329042 (1982-05-01), Libicky et al.
patent: 4999660 (1991-03-01), Wright
patent: 5151731 (1992-09-01), Yamada

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