Dispensing – Processes of dispensing
Patent
1976-02-20
1977-10-25
Reeves, Robert B.
Dispensing
Processes of dispensing
73 611C, 13710111, 137607, 13762418, 222134, B01D 1508
Patent
active
RE0294543
ABSTRACT:
The method of proportioning two liquids comprising periodically controlling the operation of a valving [means] arrangement to control the amount of each liquid supplied to a mixing region during each period of valve operation to produce a supply of eluent having a precisely controlled time varying concentration of each liquid.
REFERENCES:
patent: 2770248 (1956-11-01), Audia
patent: 3251508 (1966-05-01), Borys
patent: 3270812 (1966-09-01), Gilchrist et al.
patent: 3381699 (1968-05-01), Coffman
patent: 3446057 (1969-05-01), Bakalyar et al.
patent: 3613729 (1971-10-01), Dora
Ashmead Howard L.
Byrne, Jr. Sydnor H.
Wolf, III John P.
E. I. Du Pont de Nemours and Company
Reeves Robert B.
Rolla Joseph J.
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