Fluid cleaning filter and filter device
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United States of America Patent
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Jul 24, 2007
Grant Date -
Dec 30, 2004
app pub date -
Jul 13, 2004
filing date -
Feb 7, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A fluid cleaning filter of the present invention consists of a composite matrix composed of a pleated substrate 2 configured into a pleated shape and an active carbon-containing layer 3, wherein the pleated substrate 2 is made of polyurethane foam 2a having a three-dimensional network skeletal structure, and the composite matrix is configured into a cylindrical shape. A filtering medium layer 2b made of fibers is formed on the surface of the polyurethane foam 2a facing the active carbon-containing layer 3. The fibers of the filtering medium layer maybe electrostatically charged. The fluid cleaning filter exhibits good efficiency of dust collecting and deodorization even when a fluid flows through the filter at high rate.
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