Pump

Details Pump Pump

1979-02-09

1981-01-20

Freeh, William L.

Pumps

Successive stages

Reciprocating rigid stages

417540, F04B 300, F04B 1100

Patent

active

042459630

ABSTRACT:
A pump for precise, smooth delivery of liquid, particularly in liquid chromatography systems, featuring two liquid displacement elements mounted for reciprocating movement in chambers connected in series with two check valves, one displacement element serving to accumulate some of the liquid delivered by the first element and to deliver the accumulated liquid while the first element is refilling.

REFERENCES:
patent: 2448104 (1948-08-01), Longenecker
patent: 3077204 (1963-02-01), Bennett et al.
patent: 3311065 (1967-03-01), Hager
patent: 3597114 (1971-08-01), Hrdina
patent: 3855129 (1974-12-01), Abrahams et al.
patent: 4155683 (1979-05-01), Mochizuki

Affiliated with

Also associated with

Rating

Pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1764613