초록 ▼

A reverse osmosis water purification system produces product water in response to pressurized feed water from a water supply line. The unit also produces waste or drain water. The purified product water is supplied to a reservoir wherein the pressure of the water increases when the reservoir becomes

A reverse osmosis water purification system produces product water in response to pressurized feed water from a water supply line. The unit also produces waste or drain water. The purified product water is supplied to a reservoir wherein the pressure of the water increases when the reservoir becomes filled or when waste water is used to pressurize the product water and enable it to be withdrawn at a tap or faucet. The product water is carbonated within the product water reservoir with pressurized carbon dioxide gas supplied to the reservoir at a pressure sufficient for the gas to dissolve in the product water via a valve responsive to the pressure of the product water in the reservoir which is normally closed and opens only when the product water is under pressure sufficient to dissolve the gas; this pressure occurring when the reservoir is full in accordance with one embodiment of the invention or when the reservoir pressure is increased when a regulating valve supplies pressurized waste water from the reverse osmosis unit to the reservoir to pressurize the product water therein, in accordance with another embodiment of the invention.

대표청구항 ▼

The method comprising carbonating product water produced by a reverse osmosis water purification system having a reverse osmosis filter unit to which water is fed for purification therein and also having outlets for drain water and product water and a means for providing an alternative to separate c

The method comprising carbonating product water produced by a reverse osmosis water purification system having a reverse osmosis filter unit to which water is fed for purification therein and also having outlets for drain water and product water and a means for providing an alternative to separate carbonation tanks including sealed reservoir for collecting said product water under pressurization, by sensing the magnitude of pressurization of said product water in said reservoir, and introducing pressurized CO2 gas into said product water when said pressurization reaches a certain magnitude.