Patent ID: 7467523
Filing Date: 2008-12-23
Classification: A01G,B01D,C02F,E03B,Y02A

Abstract:
1. An apparatus for extracting water vapor from atmospheric air to produce liquid water comprising; a housing having an upper wall and a lower wall; a closure to selectively open said housing to communicate with outside atmosphere or restrict said housing from said outside atmosphere; a sorption medium in the interior of said housing; said sorption medium absorbing water vapor from atmospheric air at about ambient temperature, and releasing absorbed water vapor at above-ambient temperature; a condenser rejecting heat to ambient air for condensing water vapor released by said sorption medium to produce liquid water, said condenser forming said lower wall of said housing; a transparent face sheet for transporting solar radiation into said housing for heating of said sorption medium; said face sheet forming said upper wall of said housing; and a passageway for delivering of condensed liquid water to the exterior of said housing; said sorption material being located under said face sheet; and said sorption medium and said condenser constructed and arranged for thermal communication there between by a closed-loop convective flow of air inside said housing.