Liquid purification or separation – Flow – fluid pressure or material level – responsive – Discharge of treated material
Patent
1987-01-07
1989-05-16
Castel, Benoit
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Discharge of treated material
2101952, 2102572, B01D 1300
Patent
active
048307440
ABSTRACT:
A single control valve and associated conduits for operating a reverse osmosis assembly that includes a reverse osmosis cartridge, a reservoir that has a movable barrier therein that subdivides the interior into first and second confined spaces of variable volume, and a manually operated purified water dispensing valve, so that as the first confined space approaches a filled condition with purified water, the single control valve throttles the flow of pressurized feed water to the cartridge to minimize the use of feed water in the operation thereof, with the maximum backpressure to which purified water is subjected in discharging from the cartridge being that due to the weight of reject water in the second confined space, and a membrane in the reverse osmosis cartridge being fast-flushed with feed water to remove foreign material therefrom when the purified water dispensing valve is discharging purified water.
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