Liquid purification or separation – Flow – fluid pressure or material level – responsive – Check valve
Patent
1988-06-13
1989-10-24
Spear, Frank
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Check valve
210137, 2102572, B01D 1300
Patent
active
048760021
ABSTRACT:
A domestic reverse osmosis water purification system utilizing few parts in the controller valve mechanism enhances reliability and economic feasibility. All surfaces of the controller valve mechanism in contact with water are non-metallic and are constructed of FDA approved materials. In addition to its normal function of metering the reject water flow, the controller valve mechanism allows the homeowner to easily rinse the reverse osmosis membrane and conserves water by automatically stopping influent water flow when the product storage tank is full.
REFERENCES:
patent: 4176063 (1979-11-01), Tyler
patent: 4604194 (1986-08-01), Entingh
patent: 4657674 (1987-04-01), Burrows
Marshall John D.
Mclain Thomas N.
Becker Stephen A.
Gaudier Dale V.
LeBlanc Robert E.
Schlumberger Industries Inc.
Spear Frank
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