Apparatus and method for reducing surface tension in oxygenated water
US9783432B2 · kind B2 · utility
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17References
1Claims
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Key dates
| Filing date | Apr 25, 2013 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | Feb 14, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/005
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A non-chemical apparatus and method to lower the surface tension of a solution of liquid water and gaseous oxygen. An apparatus of the present invention comprises a source of chilled purified water, and gaseous oxygen fed into a positive displacement pump, followed by a cylinder reduced at one end by means of a convergent cone, a section of a smaller diameter cylinder attached to a divergent cone tapering up to another cylinder of a diameter the same or larger than the original cylinder. A coil of refrigeration tubing is wrapped around the smaller center cylinder to control the temperature of the inner cylinder surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.