Biological filter on a tube
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United States of America Patent
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app pub date -
Oct 17, 2005
filing date -
May 6, 1999
priority date (Note) -
Abandoned
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Abstract
A water filtration system for the removal of bacteria and protozoa as well as certain chemical contaminants which includes a bottle having a top, a bottom and an interior, where the bottle is oriented in an upright attitude when the top is above the bottom. A first filter is disposed in the bottle interior, and a second filter is disposed in the bottle interior downstream from and in series with the first filter. The second filter is formed of a sub-micron hollow fiber membrane filter and includes a filtered water outlet. The first and second filters are configured such that filtered water exits the filtered water outlet with the bottle in the upright attitude.
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