04367140 is referenced by 103 patents and cites 4 patents.

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.

Title
Reverse osmosis liquid purification apparatus
Application Number
6/202197
Publication Number
4367140
Application Date
October 30, 1980
Publication Date
January 4, 1983
Inventor
Leslie P S Wilson
Nassau
BS
Agent
Mawhinney & Mawhinney & Connors
Assignee
Sykes Ocean Water
TC
IPC
B01D 31/00
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