Treatment system

Details Treatment system Treatment system

2011-01-25

2011-01-25

Cecil, Terry K (Department: 1797)

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Float

C210S205000, C222S442000, C222S450000, C222S439000

Reexamination Certificate

active

07875170

ABSTRACT:
A treatment system comprising a holding tank for a source liquid, a pump having a pump inlet for the intake of source liquid and a pump discharge, at least one conduit connected to the pump discharge and a liquid dispenser connected to the one conduit, the dispenser comprising a container for treating liquid, a feed conduit, a dosing chamber for receiving treating liquid via the feed conduit, a vent for breaking an airlock in the dosing chamber, a first valve connected to the dosing chamber for controlling flow of treating liquid through the first valve, a second valve connected to the first valve, the second valve being operative in response to pressure resulting from the pumping of source liquid through the at least one conduit to close the second valve and open the first valve, stopping of the pump resulting in opening of the second valve and introduction of the treating liquid from the dosing chamber and into the source liquid.

REFERENCES:
patent: 3229854 (1966-01-01), Turnquist
patent: 4135263 (1979-01-01), Anderson
patent: 4707865 (1987-11-01), Ludwig et al.
patent: 4764992 (1988-08-01), Delia
patent: 5185891 (1993-02-01), Rise
patent: 6627071 (2003-09-01), Braden
patent: 2003/0155311 (2003-08-01), Chaffin

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