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| Number | Title | Issue Date |
| 7416643 | Solar water desalination/purification device A solar water desalination and purification device includes an outer liquid-tight containment and an inner liquid-tight containment disposed within the outer containment. The outer containment collects liquid that forms from condensing water vapor that evaporates wi... | 08/26/2008 |
| 7127894 | Solar thermal energy conversion system A solar cell floats over a body of saline water. A submerged fresh water collection system underlies the cell. A partial vacuum is created in the solar cell for drawing water vapor from the cell to the collection system. Water vapor is condensed in a condenser dispo... | 10/31/2006 |
| 7108769 | Solar distillation loop A solar distillation loop apparatus includes a first pipe section disposed on a ground surface, the first pipe section including a substantially straight portion and elevated portions on each end of the substantially straight portion, an impure water inflow coupling... | 09/19/2006 |
| 7008515 | Solar water still A solar water still (10) includes an enclosure assembly (12) and an evaporation assembly (14) that float on a body of source water and that are readily collapsed and folded for storage or transport. The enclosure assembly includes a transparent ... | 03/07/2006 |
| 6663750 | Multi-unit, distributive, regenerable, in situ desalination system, apparatus and method Cultivated field water is desalinated by a series of independent units that float on the water surface, taking up the saline water with a wick, evaporating the water from the wick in desalinating relation by concentrating incident solar radiation with a c... | 12/16/2003 |
| 6656326 | Apparatus and method for water purification using solar energy An apparatus for the desalination or purification of water includes a non-solid vessel (3) having a bottom defining an opening, the vessel (3) capable of being partially submerged below the surface of a body of water, a pan (5) located within the vessel (... | 12/02/2003 |
| 6494995 | Solar distillation system A solar cell floats over a body of saline water. A submerged fresh water collection system underlies the cell. A partial vacuum is created in the solar cell for drawing water vapor from the cell to the collection system. Water vapor is condensed in a cond... | 12/17/2002 |
| 5421962 | Desalination plant for salt water using solar energy The present invention relates to water treatment using solar energy. The desalination plant includes an evaporator-desalter communicating with an intake system for water to be desalinated and a vapour and condensate discharge system. The evaporator is essentia... | 06/06/1995 |
| 5409578 | Method of distilling water by use of solar heat A method for transferring water upwardly and distilling it and/or of generating electricity by harnessing the heat of sunrays. The method includes placing a panel or a sheet which permits sunrays to pass therethrough near a water surface, evaporating the ... | 04/25/1995 |
| 4959127 | System for desalinization of saltwater A system for desalinating saltwater. The system includes a platform container and a plastic dome covering through which solar ray heat passes to distall the saltwater fed therein and thereby separate therefrom distilled fresh water.... | 09/25/1990 |
| 4504362 | Solar desalination system and method A solar desalination system in which fresh water is derived from sea water by focussing solar ray energy from a collecting reflector onto an evaporator tube located at substantially the focal apex of the reflector. The reflector/evaporator tube assembly i... | 03/12/1985 |
| 4363703 | Thermal gradient humidification-dehumidification desalination system A solar energy desalination process utilizing solar radiation directly for the evaporation of salt water is described. Ambient air takes on water vapor as the air passes through an evaporative medium. It is then directed between a saline water-covered, so... | 12/14/1982 |
| 4219387 | Solar still A solar still adapted to float on a body of water has a toroidal evaporating chamber with sunlight admitting and absorbing, respectively, top and bottom walls for vaporizing water from the body admitted to overlie the bottom wall. A surrounding inner floa... | 08/26/1980 |
| 4197162 | Solar heating using the tide A fixed tank is disposed in the sea adjacent a floating solar still, with a flexible conduit extending between a lower portion of the tank and the interior of the still. A one-way check valve disposed in the lower portion of the tank permits sea water to ... | 04/08/1980 |
| 4187151 | Apparatus for producing sweet water A simple desalination device as described. A base with a preferably transparent or translucent chamber floats on the surface of a body of salt water. Waves cause the chamber to expand and contract, and valves cause air to be pumped through the chamber. Th... | 02/05/1980 |
| 4151046 | Double effect floating solar still comprising a submerged condensing system The double effect floating solar still uses a partly immersed corrugated metal plate to heat the upper layer of a body of water in order to establish a temperature difference between the upper and lower sections of the still. The difference in temperature... | 04/24/1979 |
| 4131513 | Seawater distillation apparatus A float member is provided defining a hollow chamber therein and a vertically elongated conduit depends downwardly from the float member and includes an upper portion projecting upwardly and opening into the hollow chamber to a level above the liquid leve... | 12/26/1978 |
