Flexible adsorbent filter
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United States of America Patent
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Jul 13, 2004
Grant Date -
Apr 17, 2003
app pub date -
Aug 14, 2001
filing date -
Aug 14, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention comprises a flexible adsorbent-loaded filter formed from a flexible support web and attached adsorbent particles. The adsorbent-loaded filter has open filter cells which are defined by the support web and the attached adsorbent particles and are random in size and orientation through the length and depth of the filter. The support web is formed of substantially nonlinear filaments that randomly intersect. The adsorbent particles largest average cross sectional dimension is smaller than the average diameter of the pores of the support web. When the flexible adsorbent loaded filter is flexed about a radius of curvature 20 mm, the percent increase in pressure drop is less than 100 percent when measured at a face velocity of 0.25 m/s.
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