Reverse osmosis water purification system for use in limited water supply installations
OwnerBelton E. Hallinventor
Life of this patent
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Abstract
A reverse osmosis water purification system for purification of water received from a supply tank having a limited and exhaustible supply of water. Water is extracted from the supply tank by a pump which directs the extracted water under pressure to a reverse osmosis unit which in turn directs the purified water to a hydro-pneumatic storage tank with the waste water produced by the reverse osmosis unit being returned to the supply tank for water conservation purposes. The system further includes a pressure sensing switch associated with the hydro-pneumatic storage tank and the pump to maintain the differential pressure across the reverse osmosis unit in a predetermined pressure range.
Claims13
A reverse osmosis water purification system for use with a limited and exhaustible water supply comprising:
- (a) a water supply tank for containment of a limited and exhaustible water supply and having an outlet port and a return port;
- (b) a reverse osmosis unit for producing purified water and having an inlet port, a pure water outlet port and a waste water outlet port;
- (c) pump means coupled between the outlet port of said supply tank and the inlet port of said reverse osmosis unit for extracting water from said supply tank and directing it under pressure to said reverse osmosis unit;
- (d) pipeline means coupled between the waste water outlet port of said reverse osmosis unit and the return port of said supply tank for returning the waste water produced by said reverse osmosis unit to said supply tank;
- (e) a hydro-pneumatic storage tank defining a pure water storage compartment which is coupled to the pure water outlet port of said reverse osmosis unit to receive pure water therefrom;
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- (f) means associated with said storage tank and said pump means for sensing the pressure in the pure water storage compartment of said storage tank and controlling the operation of said pump means to maintain the differential pressure across said reverse osmosis unit in a predetermined pressure range.
A reverse osmosis water purification system for use with a limited and exhaustible water supply, said system comprising:
- (a) a water supply tank for containment of a limited and exhaustible water supply, said supply tank having an outlet port and a return port;
- (b) a reverse osmosis unit for producing purified water and having an inlet port, a pure water outlet port and a waste water outlet port;
- (c) pump means coupled between the outlet port of said supply tank and the inlet port of said reverse osmosis unit for extracting water to be purified from said supply tank and directing it under pressure to said reverse osmosis unit;
- (d) pipeline means coupled between the waste water outlet port of said reverse osmosis unit and the return port of said supply tank for returning the waste produced by said reverse osmosis unit to said supply tank;
- (e) a hydro-pneumatic storage tank defining a pure water storage compartment which is coupled to the pure water output port of said reverse osmosis unit to receive pure water therefrom;
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- (f) pressure sensing switch means associated with said storage tank for sensing the pressure in the pure water storage compartment thereof, said switch means being in the power supply lines of said pump means to allow operation of said pump means when the sensed pressure is below a predetermined value and interrupt operation of said pump means when the sensed pressure is above the predetermined value.
Dependencies are inferred from the claim text.