Gradient pump apparatus

Details Gradient pump apparatus Gradient pump apparatus

1975-03-03

1976-08-24

Freeh, William L.

Pumps

Successive stages

Parallel stages to or from single stage

417270, 417287, 417429, 92 133, 92129, F04B 112, F04B 2304, F01B 3114, F16J 110

Patent

active

039764001

ABSTRACT:
A high pressure positive displacement gradient pump for two flowable materials utilizing two reciprocating pistons with the pair of pistons pumping in an overlapping reasonably pulse free manner. The gradient of the two flowable materials is created by adjustment of the stroke of each piston. Streams for the pair of pistons are combined and mixed in a mixing chamber. A third pair of pistons may deliver the mixed stream at high pressure to the desired location.

REFERENCES:
patent: 1933081 (1933-10-01), Stephan
patent: 2027076 (1936-01-01), Volliman
patent: 2215827 (1940-09-01), Ditto
patent: 2439879 (1948-04-01), Allen
patent: 2556426 (1951-06-01), Hoffer
patent: 3131855 (1964-05-01), Kocher

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