Floor covering having a strong noise-reducing properties
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United States of America Patent
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app pub date -
Jun 27, 2007
filing date -
Sep 9, 2000
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Abandoned
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Abstract
A floor covering with strong noise-reducing properties for the interior trim of means of transport having on the passenger side a textile or non-textile surface, acoustically coupled through at least one microperforated sheet to a fibrous non-woven and/or foamed plastic. A microperforated sheet having a hole diameter from 0.2 to 0.5 mm and an interhole distance from 3 to 7 mm.
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