Abstract: Salinated or other contaminated water is fed to a chamber and sprayed into an evaporation chamber that is maintained at a relatively low pressure by means of a vacuum pump or the like. This evaporates the water so that desalinated water vapor is drawn out through the pump and discharged into a collection chamber at a higher pressure whereupon it condenses and may be discharged into a storage area The solids removed by the evaporation of the water collect at the base of the evaporation chamber and can be removed periodically through an air lock.

Abstract: Internally of an insert arranged within a container there is disposed a pre-evaporator, which at its lower end has an inlet for the starting material and at its upper end opens into a treatment compartment or chamber. The pre-evaporator is surrounded by a heating jacket whose outer surface serves as a heated treatment wall. For forming a thin layer there coact, with such treatment wall, up and down movable wiper elements. Arranged coaxially with respect to the insert or insert member, within the container, is a surface condenser. The starting material or product which is to be processed, is pre-evaporated within the pre-evaporator and subjected, along the treatment wall, to a final evaporation. The lighter volatile constituents condense at the surface condenser, and the condensate can be separately outfed from the concentrate which is formed during the final evaporation.

Abstract: An atmospheric effects still includes a fluid holding tank provided with a supply opening, a top cover of transparent material supported above the tank, and a vertically-disposed tapered hollow tower member having its base resting on the floor of the tank and having an intermediate portion penetrating the top cover. At its base, the tower member has openings in its side walls to permit fluid entry into the tower member beneath the top cover. The tower member has a plurality of vertically-spaced sections of decreasing cross-sectional area, each section including a plurality of short, open tube members extending through two spaced plates. Solar energy heats fluid in the tank and causes a flow of moisture-laden air to rise upwardly through the tower member where clean water is condensed from such vapor.

Abstract: A water purifying apparatus having an inner chamber to be filled with contaminated water which is heated by a heating unit to a point where water vapor or steam is created. The steam is evacuated from the chamber at its upper portion and passes downwardly in contact with a condensing wall having cooling vanes disposed on the exterior thereof into a trough provided near the base of the apparatus from whence it is drained off into a container located below the chamber. A cover surrounds the cooling vanes forming an annular air passage and is so constructed that open areas exist near the base of the cover. The cover has an aperture on the top and a fan is disposed below this aperture. Thus cooling air is carried from the open areas near the base of the apparatus upwardly over the vanes and to the aperture at the top where it is continuously evacuated.

Abstract: A combined water distiller and cooler having a boiler and a steam condenser incorporating an expansion chamber with an air inlet over a distilled water accumulating tank so that condensing steam and water condensate may mix with air to improve the potable quality of the distilled water before it drains into the accumulator tank. The evaporator of a refrigeration system used to cool the distilled water is located inside of the distilled water accumulator tank as is the steam condenser coil, so that the combined cooling effect of the refrigerant evaporator and the chilled distilled water are used to condense steam to water in the condenser coil.