Non-electric zero waste reverse osmosis water filtering system
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United States of America Patent
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Issued Date -
Jun 7, 2007
app pub date -
Dec 2, 2005
filing date -
Dec 2, 2005
priority date (Note) -
Abandoned
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Abstract
A reverse osmosis filter system including a non-electric valve-pump assembly that allows the filter system to create zero waste and operate without electricity. The assembly includes two valves that are mechanically coupled to pistons of a pump, and in fluid communication with containers of the pump. Opening one of the valves allows the pistons to be moved in a first direction using the pressure of a cold water feed line. The pistons move in the first direction until the mechanically coupled first valve is closed and the second valve is opened, wherein the second opened valve allows the pistons to be moved in a second direction using the pressure of the cold water feed line. These movements are repeated to create a pumping action and the pump containers are sized so that concentrate water is delivered under pressure to a hot water feed line.
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