Pressurized liquid delivery apparatus

Details Pressurized liquid delivery apparatus Pressurized liquid delivery apparatus

1998-09-24

1999-11-30

Therkorn, Ernest G.

Liquid purification or separation

With means to add treating material

Chromatography

210101, 210656, 417 2, 417 26, 417 442, B01D 1508

Patent

active

059936541

ABSTRACT:
First liquid pumping apparatus for containing a first quantity of first liquid, second liquid pumping apparatus for containing a second quantity of second liquid and control apparatus for alternately connecting the first liquid pumping apparatus and second liquid pumping apparatus to pressurized liquid utilization apparatus and for causing the first and second liquid pumping apparatus to alternately deliver the respective liquids to the liquid utilization apparatus at a substantially constant flow or substantially constant pressure; the first and second liquids may be the same liquid or different liquids.

REFERENCES:
patent: 3917531 (1975-11-01), Magnussen
patent: 4043906 (1977-08-01), Helmer
patent: 4347131 (1982-08-01), Brownlee
patent: 4422942 (1983-12-01), Allington
patent: 4457846 (1984-07-01), Munk
patent: 4592842 (1986-06-01), Tomlinson
patent: 4595496 (1986-06-01), Carson
patent: 4767279 (1988-08-01), Dourdeville
patent: 4883409 (1989-11-01), Strohmeier
patent: 5393434 (1995-02-01), Hutchins
patent: 5637208 (1997-06-01), Dourdeville
patent: 5897781 (1999-04-01), Dourdeville

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