Atmospheric water extractor and method

Water extractor apparatus comprising:

• compressor means for compressing a refrigerant gas to a liquid;
• evaporator means for evaporating refrigerant liquid to refrigerant gas and cooling an atmosphere adjacent the evaporator means;
• condensing means for rejecting the heat of compression of hot refrigerant vapor to the atmosphere adjacent to the condenser;
• chamber means, having a free-floating piston separating said chamber means into a first chamber and a second chamber, for alternately
• (1) condensing refrigerant gas in the first chamber and storing refrigerant liquid in the second chamber, and
• (2) condensing refrigerant gas in the second chamber and storing refrigerant liquid in the first chamber;
• means, including lines interconnecting the compressor means, the evaporator means and the first and second chambers, for enabling the compressor means to alternately
• (a) introduce refrigerant gas into the first chamber and move refrigerant liquid into the evaporator means by displacement of the free-floating piston, and
• (b) introduce refrigerant gas into the second chamber and move refrigerant liquid into the evaporator means by reverse displacement of the free-floating piston;
• means for cooling said chamber means;
• and
• means, including at least one reservoir, for collecting water condensing on the evaporator means from the adjacent atmosphere.