Liquid purification or separation – Flow – fluid pressure or material level – responsive – Proportionate feed means
Patent
1976-02-23
1977-04-12
Adee, John
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Proportionate feed means
210128, 210152, 210206, 222450, C02B 123
Patent
active
040173933
ABSTRACT:
An apparatus for dosing a treatment solution into a waste liquid comprises a device for measuring and dispensing a predetermined volume of solution, means for delivering treatment solution to and from the device and control means adapted to determine when waste liquid is present to be dosed and activate the device to dispense a measured volume of treatment solution into a waste liquid. The device has a container with an inlet and outlet diaphragm valve, and an air vent means for venting the chamber during filling and dispensing of treatment solution. Reversible actuation means is provided for simultaneously opening the inlet valve and closing the outlet valve to permit filling of the chamber with a treatment solution and for simultaneously closing the inlet valve and opening the outlet valve to permit dispensing of the measured volume of treatment solution. The control means operates the reversible actuation means to dispense treatment solution into the waste liquid and is adapted to close the outlet valve and open the inlet valve in the absence of waste liquid to be dosed.
REFERENCES:
patent: 489084 (1893-01-01), Morgan
patent: 1200324 (1916-10-01), Earl et al.
patent: 2479842 (1949-08-01), Kirwan
patent: 3795349 (1974-03-01), Schetinin
Adee John
Her Majesty the Queen in right of Canada as represented by the M
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