Fluid mixer arrangement

Details Fluid mixer arrangement Fluid mixer arrangement

1984-03-16

1984-12-18

Marcus, Stephen

Fluent material handling, with receiver or receiver coacting mea

With signal, indicator, recorder, inspection means or exhibitor

Level or pressure in receiver

137423, 141100, 141330, F16K 3132

Patent

active

044885822

ABSTRACT:
A fluid mixer arrangement such as for mixing fluid concentrates with water to produce a mixture available on a demand basis. One embodiment includes two such mixing arrangements particularly suited to semiautomatically provide separate fixer and developer fluid mixtures for film development. In each mixer arrangement, bottles of liquid chemicals are positioned in inverted fashion above a tank with hydraulically operated piercing knives located to pierce the caps of the bottles to replenish the chemical mixture in the tank. When the mixture of fluid in the tank reaches a certain minimum level, a secondary float permits a valve to open, coupling pressurized tap water to cylinders to activate the piercing knives and also to permit water flow into the tank. A primary float closes the valve when the fluid mixture in the tank reaches its desired high level.

REFERENCES:
patent: 1803423 (1931-05-01), Brown
patent: 3049144 (1962-08-01), Oleskow
patent: 3515830 (1970-06-01), Johnson
patent: 4080986 (1978-03-01), Schoepe
patent: 4098431 (1978-07-01), Palmer et al.
patent: 4103358 (1978-07-01), Gacki et al.
patent: 4186765 (1980-02-01), Anderson

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