Reverse osmosis liquid purification apparatus
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United States of America Patent
Stats
-
Jan 4, 1983
Grant Date -
N/A
app pub date -
Oct 30, 1980
filing date -
Nov 5, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In apparatus for the reverse osmosis purification of water or other fluid in a module containing a membrane, the water is forced into the module under pressure using two piston-cylinder assemblies mechanically interconnected with the pressurized fluid from the module applied to the rear face of the piston which, from its front face, is driving water into the module, a low pressure continuously operating pump providing a low pressure on the other piston to supply the necessary extra pressure. Valve means automatically reverse the functions of the two cylinders at each end of each stroke.
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