Liquid purification or separation – Flow – fluid pressure or material level – responsive – Check valve
Patent
1987-06-24
1989-02-14
Cintins, Ivars
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Check valve
210191, 210284, 210288, 222 71, B01J 4900
Patent
active
048044652
ABSTRACT:
A water treatment system including a pair of tank assemblies 110, 112 interconnected by a valve module 114 for controlling the communication of water to be treated to an on-line tank and the regeneration of an exhausted tank. Each tank assembly includes a compartment containing a water softening resin 125 and a compartment centering an iron filter media. The valve module is connected to a regeneration solution reservoir 150 by brine conduits 164, 220. A pumping assembly 192 automatically transfers a predetermined amount of a supplemental regenerant fluid from a well 168 into the regeneration solution reservoir at the conclusion of a regeneration cycle. The pumping assembly includes upper and lower chambers 194a, 196a communicating with the supplemental regenerant fluid reservoir 168 and brine supply conduits 164, 220 respectively. The lower chamber 196a contracts and expands in response to the depressurization and pressurization of the brine conduits and produces attendant expansion and contraction in the upper chamber 194a. The upper chamber draws a predetermined amount of regenerant fluid from the reservoir 168 and injects the fluid into the regeneration solution reservoir 150. Check valves 186, 202 control the direction of flow of the regenerant fluid from the regenerant well 168.
REFERENCES:
patent: 3092029 (1963-06-01), Hanson et al.
patent: 3319791 (1967-05-01), Horne
patent: 4140541 (1979-02-01), Popper
Cintins Ivars
Kinetico, Inc.
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