Flexible insulated air duct
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United States of America Patent
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-
Oct 18, 1983
Issued Date -
N/A
app pub date -
Mar 29, 1982
filing date -
Jul 14, 1980
priority date (Note) -
Expired
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Abstract
A glass wool blanket is formed directly on glass fiber scrim for use in flexible insulated air duct with any kind of outer jacket. The scrim-faced wool passes the flame-penetration test of Underwriter's Laboratories Standard UL 181 regardless of the outer jacket material used.
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