Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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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 |
| 7264695 | Systems and methods for solar distillation The present invention is directed to a solar powered distillation system and method. The solar powered still may have an impermeable nonporous membrane that may be extruded, molded, vacuum formed or sprayed-on. The membrane may be installed in a lightweight basin as... | 09/04/2007 |
| 7153395 | Systems and methods for solar distillation The present invention is directed to an improved solar powered distillation system and method. The solar powered still may have a membrane that is extruded, molded, or sprayed-on. The membrane may be installed in a lightweight basin as a liner resulting in improved ... | 12/26/2006 |
| 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 |
| 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 |
| 6797124 | Solar distillation unit A solar distilling apparatus employs anthracite coal as a heat-absorbing medium. Greenhouse roof elements rest over a gutter that is isolated from the water-holding container to prevent deposit formation and algae growth from reaching the gutter. Bacterial growth is... | 09/28/2004 |
| 6767433 | System and method for solar distillation The present invention is directed to an improved solar powered distillation system and method. The solar powered still may have a waterproof membrane that is extruded, molded, or sprayed-on. The membrane may be installed in a lightweight basin as a liner resulting i... | 07/27/2004 |
| 6761802 | Tunnel for distillation of fresh water from ocean salt water A closed tunnel system for distilling fresh water from ocean salt water is provided with an elongated evaporation plate adapted to hold ocean water for evaporation therefrom. During the distillation process, a vacuum is drawn in the tunnel, and sunlight is focused o... | 07/13/2004 |
| 6673213 | Method and apparatus for the thermo-solar distillation and transportation of water from a water table The invention refers to a simultaneous system for the distillation and elevation of water on top of the water table itself, which driven by thermo solar energy allows in an autonomous operation the generation of electrical power through transportation and... | 01/06/2004 |
| 6440275 | Solar stills for producing fresh water A solar still for producing fresh water including a device, adapted to absorb solar radiation and to contain water to be distilled; a condensation surface on which vapor, produced by heating up of water of the device can condense; a fresh water collector ... | 08/27/2002 |
| 6391162 | Desalination apparatus and method of operating the same A desalination apparatus and method utilizing solar energy provided with a solar heat collector for heating a heating medium with solar energy, a heat exchanger cooperating with an evaporation can so as to subject the heating medium and raw water in the e... | 05/21/2002 |
| 6355144 | High output solar water distillation system A high output solar fluid distillation system is described that is practical to manufacture and efficient to operate, and can distill a variety of fluids such as water or ethyl alcohol. The distillation system uses a fluid feed system that collects source... | 03/12/2002 |
| 6342127 | Distillation device A distillation device including an enclosed tube of elliptical or circular cross section and having a top of an inverted shape so that the inverted portion points downward. The upper section of the outer tube should be of a material that permits the heati... | 01/29/2002 |
| 6274004 | Water purification device A water purification and/or desalination plant for producing drinking water from a polluted water source or sea water with the aid of sunlight, which plant includes an evaporator (1) having a roof part (2) made of a light-penetrable material, and an under... | 08/14/2001 |
| 6197152 | Process and apparatus for recovery of lithium in a helminthoid evaporator A process and apparatus for continuously removing soluble minor constituents from brines containing soluble major and minor constituents by use of a Helminthoid evaporator.... | 03/06/2001 |
| 6165326 | Facility for desalinating of purifying sea water or brackish water by means of solar energy A facility for the desalination and purification of sea water or brackish water by solar energy provided with a closed cycle including a thermal solar collector and a heat exchanger in which a heat transfer medium is circulating, and a basin for receiving... | 12/26/2000 |
| 6001222 | Solar heating and evaporation plant A solar heating and evaporation plant is described which can be used to either produce distilled potable water from salty water or to heat water for industrial or domestic purposes. The plant includes a plurality of substantially equally spaced solar stil... | 12/14/1999 |
| 5650050 | Device for the desalination of sea water The sea water to be desalted is fine-sprayed through nozzles (3) against an underside (1b) of a plate-shaped element (1). The element (1) may, for example, be an aluminum plate forming a heat transfer medium and is exposed to solar radiation through glass... | 07/22/1997 |
| 5645693 | Plant for sea water desalinizing using solar energy An apparatus for desalination of sea water by the utilization of solar energy, advantageously accompanied by electric power generation, containing a heat caption unit (1) serving as a heat source, a sea water collecting tank (10), a pre-heating tank (11),... | 07/08/1997 |
| 5628879 | Sun actuated automated distillation apparatus A portable solar still, controlled by a sun actuated mechanical valve, including a thermally insulated evaporation chamber structure within which distillation takes place, is assembled from sidewall panels and floor panels of foam plastic thermal insulati... | 05/13/1997 |
| 5598661 | Soil irrigation solar still system The invention provides a soil irrigation solar still system of the type hng a material transparent to solar radiation, supported in a non-planar, arched or sloped roof configuration above a darkened channel containing an impure liquid in such a manner as... | 02/04/1997 |
| 5593549 | Method for changing solar energy distribution In a method for concentrating solar energy waveform energy is directed to a predetermined region of the atmosphere located a pre-established distance above a surface of the earth. The directing of the energy is controlled so as to modulate an index of ref... | 01/14/1997 |
| 5582690 | Method of and means for water desalinization Desalination of sea water is achieved using a solar pond that includes a halocline interposed between a convective upper wind mixed layer exposed to the ambient atmosphere, and a lower heat storage layer of hot, concentrated brine, Hot brine from the heat... | 12/10/1996 |
| 5468351 | Apparatus for recovering fresh water and apparatus for concentrating liquid An apparatus for recovering fresh water or for concentrating a liquid has a structure formed of a roof member 10 having a gradient and a base member 14 provided with a liquid reservoir member 18. A cellulose-based film 20 has one surface saponified 2 to 5... | 11/21/1995 |
| 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 |
| 5391262 | Solar still vibrator A solar still of the type having a container for holding a supply of liquid to be evaporated and an inclined solar transmissive cover mounted in an inclined position thereon, is provided with a vibrating device for imparting vibrations to the cover member... | 02/21/1995 |
| 5316626 | Process and apparatus for the production of fresh water using solar energy In a method for producing fresh water using solar energy, the method involving the use of an installation comprising a structure oriented toward the sun and permeable to solar radiation, forming a greenhouse including a preheating and reheating chamber an... | 05/31/1994 |
| 5282979 | Desalination system having rechargeable syphon conduit A desalination system includes a transfer conduit between a pool of salt water and a pool of desalinated water. The conduit is initially filled with water and is then elevated so that a portion of the conduit is above the syphon height of water at atmosph... | 02/01/1994 |
| 5158650 | Solar still assembly A solar still assembly has a thermally-insulated pan which supports an open frame of elongated members. The pan has side walls which support the frame members, with one side wall being higher than the other side wall. One end of each frame member is attac... | 10/27/1992 |
| 5053110 | Solar water distillation system The disclosure relates to a solar-operated apparatus to purify and/or desalinate water. Several embodiments are disclosed, each of which substantially derives its source of heat from solar energy. The apparatus includes a unique design of the evaporating ... | 10/01/1991 |
| 4966655 | Plastic covered solar still An open wire frame formed of wire ladder stock having intersecting right angle wires includes at least one upwardly inclined open frame section overlying an underlying open pan and terminating at a lower edge in a downward directed projection of U-shape a... | 10/30/1990 |
| 4921580 | Solar water distiller A solar water distiller is set forth utilizing a spherical boiler formed with an underlying concave reflective lens arranged for tracking of the position of the sun to effect boiling of water provided within the solar boiler. Water vapor is forcibly remov... | 05/01/1990 |
| 4882071 | Method and apparatus for the in situ decontamination of underground water with the aid of solar energy A method for the in situ decontamination of underground water containing -volatile contaminants comprising continuously contacting in situ underground water containing non-volatile contaminants with a liquid-absorbent material possessing high capillary a... | 11/21/1989 |
| 4853088 | Solar enhanced separation of volatile components from a liquid A process and apparatus for separating volatile components from a volatile-containing liquid by a stripping gas flowing countercurrent to the liquid. Separation of the volatile components is enhanced by heating the liquid with radiant solar energy and agi... | 08/01/1989 |
| 4834840 | Hazardous waste management solar dryer apparatus Processes for managing toxic and hazardous waste materials containing distillable solvents or chemicals in which the waste materials are collected and introduced into solar dryers wherein the more volatile solvent or chemical components thereof are distil... | 05/30/1989 |
| 4756802 | Solar distillation device A distillation device for distilling liquids, using concentrated solar energy to evaporate the undistilled liquid. A lens focuses solar rays into a concentrated area on the outer surface of an opaque heat target, the inner surface of which is in contact w... | 07/12/1988 |
| 4749447 | Evacuated evaporation-pressurized condensation solar still This invention discloses a solar still comprising a plurality of twin conduits routed through a plurality of solar collectors wherein the liquid is evaporated in the evaporation conduit constituting the first of the twin conduits and the vapor is condense... | 06/07/1988 |
| 4698135 | Desalinating drip-irrigation system A system is provided for use adjacent a plant supporting material to be irrigated, for converting salt water into fresh water and dispensing the fresh water dripwise to the plant supporting material. The system comprises an evaporator member made of micro... | 10/06/1987 |
| 4639293 | Partially evacuated solar still This invention relates to a solar still wherein the evaporation takes place in partially evacuated tubings which are heated by sunlight. The water to be distilled is supplied from a reservoir vessel which is sealed off after batch loading. The reservoir v... | 01/27/1987 |
