Fluid dispensing system having independently operated pumps

Details Fluid dispensing system having independently operated pumps Fluid dispensing system having independently operated pumps

1996-02-23

1998-06-30

Drodge, Joseph W.

Liquid purification or separation

Processes

Separating

210136, 210143, 2104161, 222 52, 22218906, 222255, 417 2, 417205, 417313, 417426, B01D 2438, F04B 2306

Patent

active

057728992

ABSTRACT:
A fluid dispensing system is provided which has first diaphragm pump means, a filter connected to receive the discharge of said first pump, and accumulator/second diaphragm pump means connected to receive the discharge of said filter. Hydraulic fluids pumped by cylinder/piston/stepper assemblies independently actuate each of the diaphragm pumps, providing accurate, controllable and repeatable dispense of the subject fluid.

REFERENCES:
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patent: 3637328 (1972-01-01), Kurokawa et al.
patent: 3704968 (1972-12-01), Haupt
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patent: 4983102 (1991-01-01), Swain
patent: 5167837 (1992-12-01), Snodgrass et al.
patent: 5516429 (1996-05-01), Snodgrass et al.
"Control of the Surface Water Purification Plant for the Amsterdam Water-Supply Authority", Philips Technical Review, vol. 36, 1976, No. 10, M. Klinck.

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