SOUND ABSORBING ELEMENT WITH LOW PROFILE MICRO-LOUVER SLITS AND MUFFLER ASSEMBLY USING THE SAME
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United States of America Patent
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Issued Date -
Sep 7, 2023
app pub date -
Mar 2, 2023
filing date -
Mar 4, 2022
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status (Latency Note)
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Abstract
A novel sound absorbing sheet material with a unique combination of micro-louver slit parameters and patterns provides superior noise attenuation and a reduced perforation area (less than 3.5%) to better protect fiberglass insulation when used in a muffler assembly. A muffler assembly is disclosed incorporating the novel sound absorbing sheet as the inner exhaust conduit.
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