Dispensing – Plural sources – compartment – containers and/or spaced jacket – With discharge assistant for each source
Patent
1977-09-12
1979-04-24
Spar, Robert J.
Dispensing
Plural sources, compartment, containers and/or spaced jacket
With discharge assistant for each source
222145, 222318, 222333, 222334, 74459, G01F 1102
Patent
active
041507690
ABSTRACT:
Fluids to be mixed and dispensed are metered out of hydraulic cylinders by movement of pistons therein. The rate of movement is controlled by movement of a recirculating ball nut connected to each piston rod, movement of the nut, in turn, being controlled by the rate of rotation of its ball screw. Each screw carries a gear, and the gears have a common drive so that the ratio of the diameter of the gears accurately controls the volumetric metering ratio of the cylinders. In one form, an inert fluid under pressure acting on the reverse sides of the pistons assists the force of the ball nut drive. In another form, two cylinders work as a pair on each fluid, inert fluid under high pressure acting on the reverse sides of the pistons of each pair to meter, mix and dispense the fluids at about two thousand to two thousand five hundred pounds per square inch.
REFERENCES:
patent: 992897 (1911-05-01), Nichols et al.
patent: 2501004 (1950-03-01), Reese
patent: 2654505 (1953-10-01), Fuhrman
patent: 3390815 (1968-07-01), Kavan et al.
patent: 3419051 (1968-12-01), Gustafson et al.
Accuratio Systems Inc.
Handren Frederick R.
Spar Robert J.
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