Photographic processing tank

Details Photographic processing tank Photographic processing tank

1975-01-24

1976-08-31

Gonzales, John

G03D 1700

Patent

active

039785050

ABSTRACT:
A photographic film and print processing tank having a bottom drain valve which in a preferred embodiment coacts with a tank support stand whereby the valve and stand cooperate to facilitate rapid substantial draining of processing solution and recovery thereof for reuse. The size of the tank is selectively variable to enable the volumetric capacity, and vertical extent, of the tank to be adjusted to minimize the amount of processing solution required for processing varying amounts and sizes of photographic film or print material.

REFERENCES:
patent: 1208244 (1916-12-01), Waite
patent: 1501904 (1924-07-01), Harris
patent: 2419859 (1947-04-01), Tarr
patent: 3677163 (1972-07-01), Porter

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