US Patent No: 5,670,094
Number of patents in Portfolio can not be more than 2000
Method of and apparatus for producing ozonized water
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Sep 23, 1997
Issued date -
Jan 25, 1996
filing date -
08/590,361
serial no -
In Force
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Abstract
In an ozonized water producing apparatus in which a pressurized ozone gas generated by an electric discharge type ozonizer is dissolved in water to be treated through a porous hollow-fiber membrane, an infinite variable-speed control type pump is provided upstream of the hollow-fiber membrane to maintain the water pressure inside the hollow fibers higher than the ozone gas pressure and to control the water pressure and flow rate, and a control mechanism is provided to control the ozone concentration in the treated water on the basis of the ozone gas concentration. Thereby treated water containing neither tiny bubbles nor impurities is obtained, and the concentration, flow rate and pressure of the treated water are controlled at constant levels.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,897,359 Apparatus for oxygenating culture medium | 12 | 1989 | |
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| 4,836,929 Process for breaking down organic substances and/or microbes in pretreated feed water for high-purity water recirculation systems | 44 | 1988 | |
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| 4,355,636 Humdifier and heater for air to be inhaled for connection to an inhalation conduit of a respirator | 57 | 1980 | |
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| 5,073,268 Process and system for purifying pure water or ultrapure water | 88 | 1990 | |
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| 4,992,216 Method for producing ozone-containing water | 13 | 1989 | |
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| 5,037,610 Method for manufacturing a hollow fiber membrane oxygenator | 13 | 1990 | |
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| 4,555,335 Ozonator feed system | 37 | 1982 | |