Self-supporting filter composite
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United States of America Patent
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-
Dec 5, 1995
Grant Date -
N/A
app pub date -
Mar 14, 1994
filing date -
Mar 14, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A filter composite comprising a first layer of glass fibers having random orientation, the layer being porous to gas flow therethrough; a porous mat of sufficient stiffness as to support the glass fiber layer during use as a filter, the mat consisting of compacted glass fibers, and; an additional porous layer carried by the mat to block escape of glass fibers or particles from the filter composite during gas flow therethrough.
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