Variable ratio liquid metering dispenser

Details Variable ratio liquid metering dispenser Variable ratio liquid metering dispenser

1982-09-23

1985-05-07

Rolla, Joseph J.

Dispensing

Plural sources, compartment, containers and/or spaced jacket

Interconnected discharge volume varying means

222334, 74110, 74348, 417343, 417426, G01F 1106

Patent

active

045152969

ABSTRACT:
A variable speed ratio system for the controlled dispensing of a plurality of non-compressible fluids at high pressure, principally for use in reaction injection molding processes. Each of the pistons in two or more displacement cylinders that contain the fluids to be mixed is connected via a rack gear to the piston of a hydraulic driving cylinder, all hydraulic cylinders being connected to a common source of pressure. A variable speed change gear train connected to each rack gear will control the speed ratios of the displacement pistons irrespective of the fluid viscosities or mixing orifice sizes while the gears are subjected to only the differences in forces acting on the displacement piston rods.

REFERENCES:
patent: 3710982 (1973-01-01), Ferrari
patent: 4366918 (1983-01-01), Naka

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