Method of detecting remaining quantity of replenishing solution

Details Method of detecting remaining quantity of replenishing solution Method of detecting remaining quantity of replenishing solution

1988-06-13

1989-08-22

Noland, Tom

Measuring and testing

Volumetric content measuring

73290R, 340618, 364564, G01F 2300

Patent

active

048584681

ABSTRACT:
A method of detecting the quantity of replenishing solution remaining in a replenishing-solution tank in an automatic developing machine, which tank stores a replenishing solution to be supplied to a processing tank for processing a light sensitive material, comprises the steps of subtracting the quantity of replenishing solution supplied to the processing tank from a storage quantity representing the amount of replenishing solution stored in the replenishing-solution tank; and detecting the value of the subtraction as the quantity of replenishing solution remaining in the replenishing-solution tank. Accordingly, an operator can detect the remaining quantity of replenishing solution without the need to visually inspect the replenishing-solution tank.

REFERENCES:
patent: 3377859 (1968-04-01), Sanders
patent: 3874236 (1975-04-01), Reck
patent: 4339950 (1982-07-01), Lendino
"Computer Inventories Oil in Refinery Tanks"; Electronics; vol. 30, No. 10, Oct. 1957, pp. 143-147; D. J. Gimpel et al.

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