Devices for the preparation of a mixture from at least two fluid

Details Devices for the preparation of a mixture from at least two fluid Devices for the preparation of a mixture from at least two fluid

1984-12-05

1987-07-28

Rolla, Joseph J.

Dispensing

Plural sources, compartment, containers and/or spaced jacket

With discharge assistant for each source

222249, 137 98, 417397, B67D 552

Patent

active

046827129

ABSTRACT:
A device for the preparation of a mixture of a basic fluid and at least one additional fluid in a definite mixing ratio is described. The device has a main piston which is movable in a master cylinder between two limit positions. A control unit can feed basic fluid under pressure alternately to one side of the piston and to the other. The main piston is connected to at least one metering piston which is movable in a metering cylinder having an inlet for an additional fluid and an outlet connected to the mixing vessel. In operation, movement of the main piston in the direction which increases the volume of the metering chamber formed in the metering cylinder causes additional fluid to be fed to the metering chamber through its inlet, while movement of the main piston in the opposite direction causes additional fluid in the metering chamber to be expelled through the metering cylinder outlet into the mixing vessel.

REFERENCES:
patent: 1929719 (1933-10-01), Werder
patent: 2533281 (1950-12-01), Oliveau
patent: 2736466 (1956-02-01), Rodth
patent: 2894732 (1959-07-01), Taber et al.
patent: 2912994 (1959-11-01), Mori
patent: 3322305 (1967-05-01), Tremolada
patent: 3345997 (1967-10-01), Miller et al.
patent: 3744764 (1973-07-01), Sedam
patent: 3901408 (1975-08-01), Boden et al.
patent: 4132483 (1979-01-01), Slaats et al.
patent: 4538919 (1985-09-01), Bohnensieker

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