Abstract 1. A still apparatus adapted to be placed in contact with a source of liquid solvent having a concentration of dissolved solids therein and from which the solvent is to be obtained, said apparatus comprising a frame, means in said frame defining an enclosed chamber and including a first osmotic membrane forming a peripheral portion of said chamber and located in said frame to be in contact with the liquid in said source and a second membrane at least partially formed of an osmotic material defining another peripheral portion of said chamber; and a liquid solution in said chamber having a higher concentration of solids tan said source whereby an osmotic pressure is produced causing liquid solvent to pass by osmosis from said source to said chamber creating a pressure therein while the dissolved solids in said source remain n the source; an evaporator lens mounted in said frame opposite said second membrane in position to be exposed to electromagnetic radiation when said first osmotic membrane is in contact with said source and cooperating with said second membrane to form an evaporation chamber wherein said lens evaporates liquid solvent through the portion of said second membrane formed of an osmotic material by reverse osmosis as said solvent is evaporated and condenses on said lens, and means for collecting the condensed solvent from said lens.
A still apparatus adapted to be placed in contact with a source of liquid solvent having a concentration of dissolved solids therein and from which the solvent is to be obtained, said apparatus comprising a frame, means in said frame defining an enclosed chamber and including a first osmotic membrane forming a peripheral portion of said chamber and located in said frame to be in contact with the liquid in said source and a second membrane at least partially formed of an osmotic material defining another peripheral portion of said chamber; and a liquid solution in said chamber having a higher concentration of solids tan said source whereby an osmotic pressure is produced causing liquid solvent to pass by osmosis from said source to said chamber creating a pressure therein while the dissolved solids in said source remain n the source; an evaporator lens mounted in said frame opposite said second membrane in position to be exposed to electromagnetic radiation when said first osmotic membrane is in contact with said source and cooperating with said second membrane to form an evaporation chamber wherein said lens evaporates liquid solvent through the portion of said second membrane formed of an osmotic material by reverse osmosis as said solvent is evaporated and condenses on said lens, and means for collecting the condensed solvent from said lens.
Claim 2
Dependent Claim
223 words
A still apparatus adapted to be placed in contact with a source of liquid solvent having a concentration of dissolved solids therein and from which the solvent is to be obtained, said apparatus comprising a frame, means in said frame defining an enclosed chamber and including a first osmotic membrane forming a peripheral portion of said chamber and located in said frame to be in contact with the liquid in said source and a second membrane at least partially formed of an osmotic material defining another peripheral portion of said chamber; and a liquid solution in said chamber having a higher concentration of solids tan said source whereby an osmotic pressure is produced causing liquid solvent to pass by osmosis from said source to said chamber creating a pressure therein while the dissolved solids in said source remain n the source; an evaporator lens mounted in said frame opposite said second membrane in position to be exposed to electromagnetic radiation when said first osmotic membrane is in contact with said source and cooperating with said second membrane to form an evaporation chamber wherein said lens evaporates liquid solvent through the portion of said second membrane formed of an osmotic material by reverse osmosis as said solvent is evaporated and condenses on said lens, and means for collecting the condensed solvent from said lens.