Method and apparatus for preparing chemical solutions

Details Method and apparatus for preparing chemical solutions Method and apparatus for preparing chemical solutions

1975-06-19

1978-06-06

Schwadron, Martin P.

Fluid handling

Processes

Cleaning, repairing, or assembling

134169R, 137205, 137238, 137563, 137636, 222133, 239350, B05B 900, F16K 1118

Patent

active

040929930

ABSTRACT:
A method and system for carrying out the method, relating to mixing of solutions, wherein the base liquid in a tank is circulated through an endless circuit while the chemical is gradually introduced into the circulating flow base liquid to achieve through mixing. A chemical is withdrawn under valve control into a measuring receptacle prior to mixing same with the base liquid. Provision is included for rinsing the chemical source container, the resulting rinse solution being automatically introduced into the tank, leaving the source container in condition to meet legal requirements for disposal. To simplify disposal of rinsed containers and discourage re-use thereof, a feature of the method and system involves means for collapsing the containers. A novel multiple valve assembly enables all features to be embodied in a simplified and condensed system.

REFERENCES:
patent: 2578994 (1951-12-01), Dunaway
patent: 3133558 (1964-05-01), Fajans et al.
patent: 3275030 (1966-09-01), Alvin
patent: 3575348 (1971-04-01), MacKay
patent: 3655054 (1972-04-01), Pansini
patent: 3756220 (1973-09-01), Tehrani et al.
patent: 3763878 (1973-10-01), Harden
patent: 3913606 (1975-10-01), Anderson
patent: 3916924 (1975-11-01), McGowan

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