Double pump device for mixing two or more liquids with variable

Details Double pump device for mixing two or more liquids with variable Double pump device for mixing two or more liquids with variable

1974-05-23

1976-02-03

Husar, C. J.

Dispensing

Plural sources, compartment, containers and/or spaced jacket

Interconnected discharge volume varying means

222 26, 417426, 318678, B67D 560

Patent

active

039359719

ABSTRACT:
A double pump device for mixing with variable ratios and concentrations two or more liquids, comprising in combination: a first peristaltic pump, and a second peristaltic pump, each of said pumps acting on a plurality of collapsible tubes, said pumps being operated by two electric motors, interdependant and preferably identical to each other, driven by an electronic circuit comprising as main elements a differential amplifier and circuitry means for adjusting the input voltage of the differential amplifier and for amplifying the output signals from the differential amplifier before their application to the two driving motors.

REFERENCES:
patent: 3398689 (1968-08-01), Allington
patent: 3427520 (1969-02-01), Oppedahl
patent: 3523228 (1970-08-01), Currie et al.
patent: 3559008 (1971-01-01), Stut et al.
patent: 3565286 (1971-02-01), Latham, Jr.
patent: 3771032 (1973-11-01), Hender

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