Patent ID: 6336957
Filing Date: 2002-01-08
Classification: E03B,Y02A

Abstract:
A method of extracting water from atmoshperic air, comprising:(a) causing ambient air to be drawn across a sorbent material (6) adapted to absorb or absorb water vapor, the sorbent material (6) being disposed in an enclosure (1) comprising a first area containing the sorbent material and a second area containing a condenser (13); (b) hermetically sealing the enclosure (1) from the atmosphere, after the sorbent material has been fully saturated with water vapor; (c) causing desorption of water vapor from the sorbent material (6) by heating the sorbent material (6), raising thereby the internal pressure of the enclosure (1); (d) creating a partial vacuum in the enclosure (1) and a pressure differential between the first area and the second area, by venting residual air and an amount of water vapor from the enclosure (1), so that water vapor flows from the first area to the condenser (13) in the second area; and (e) collecting the water which condenses on the condenser (13).