Pumps – Motor driven – Relatively movable pumping members driven by relatively...
Patent
1975-12-11
1978-02-28
Freeh, William L.
Pumps
Motor driven
Relatively movable pumping members driven by relatively...
417393, 92 133, F01B 720, F04B 3500, F15B 1517, F15B 1524
Patent
active
040764656
ABSTRACT:
A reciprocating device for proportionating volumes of two distinct and different fluids within the same housing by a simultaneous fluid drawing from a supply source into the separate compartments provided inside an elongated housing of differential diameters having separating seals incorporated therein and receiving slideably different diameter pistons of elongated close sliding fit, comprising separate chambers suitable for fluid separation and holding therein at the end of a first suction cycle and subsequently by a simultaneous fluid discharge from the separate chambers for mixing with resultant dilution thereof during a second exhaust cycle, to provide simple and accurate proportioning-diluter adaptable for use in applications handling highly concentrated chemicals in a solution form subject to a precise dilution in fixed measured displacements per each stroke, including various means of diluter operation from manual to automatic unit operation by the use of pressurized fluids such as pressurized air or even city water under pressure in a system incorporating volume adjustment of ratio diluent vs. concentrate discharged when controlled by appropriate three way valve-operator in the actuating end of the diluter while in the discharge end-by check valves.
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