Dual stage ultrafilter devices in the form of portable filter devices, shower devices, and hydration packs
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United States of America Patent
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May 19, 2009
Grant Date -
Jul 19, 2007
app pub date -
Aug 31, 2006
filing date -
Sep 2, 2005
priority date (Note) -
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Abstract
The present invention is directed to an alternative compact portable filtration device that can be used in remote locations and includes a single filtration cartridge that provides redundant filtration of the fluid (water). In particular, the device is a dual stage ultrafilter cartridge (apparatus) that is constructed and designed to provide a portable device that can be used in the field, such as during camping or military assignment, and offers two filtration stages (redundant filtration) within a single housing.
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