Combined reverse osmosis unit and water inflow control valve for

Details Combined reverse osmosis unit and water inflow control valve for Combined reverse osmosis unit and water inflow control valve for

1988-08-17

1989-05-30

Hruskoci, Peter

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Check valve

210131, 2102572, 21032165, 21032167, 210354, 210431, B01D 1300

Patent

active

048348732

ABSTRACT:
An improved reverse osmosis unit is provided for use in a water purification system, wherein the reverse osmosis unit includes an integral control valve for regulating water inflow in response to system demand for purified water. The reverse osmosis unit includes a feed water inlet receiving a supply of ordinary tap water or the like for flow through a reverse osmosis cartridge having a membrane for separating the water inflow into a relatively pure water supply and a reject water supply with impurities concentrated therein. The pure water supply is coupled through a pure outlet port for collection within an appropriate storage vessel to await dispensing through a faucet valve or the like, whereas the reject water supply flows through a reject outlet port for discharge to a drain. When the storage vessel reaches a predetermined or substantially filled condition, the fluid pressure within the storage vessel acts against a control piston to displace the reverse osmosis cartridge and an integrated inflow control valve carried thereby toward a position closing or throttling the incoming feed water flow.

REFERENCES:
patent: 1506967 (1924-09-01), Bosworth
patent: 1805450 (1931-05-01), Harvey
patent: 2134413 (1938-10-01), Munoz
patent: 3568843 (1971-03-01), Brown
patent: 4070280 (1978-01-01), Brag
patent: 4190537 (1980-02-01), Tondreau et al.
patent: 4585554 (1986-04-01), Burrows
patent: 4595497 (1986-06-01), Burrows
patent: 4734262 (1988-03-01), Bagshawe
patent: 4743366 (1988-05-01), Burrows
Herron and Maynard: Self Regulating Filter and Valve Assembly-IBM Technical Disclosure Bulletin, vol. 16, No. 11, 4/74.

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