Low Pressure Drop Cyst Filter
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United States of America Patent
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Issued Date -
Feb 19, 2009
app pub date -
Aug 15, 2007
filing date -
Aug 15, 2007
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Abandoned
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Abstract
A long life, low pressure drop, cyst reduction water filter includes two active layers, the first comprising a non-woven fiber layer of nominal submicron porosity that retains cysts, but provides a good flow rate, and an upstream protective layer of a different non-woven fiber layer that captures particulates which would otherwise overwhelm and plug the cyst reduction layer.
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