SOUND ABSORBING STRUCTURE AND SOUND ABSORBING WALL
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United States of America Patent
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Issued Date -
Dec 22, 2022
app pub date -
Aug 25, 2022
filing date -
Aug 25, 2022
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Abstract
A sound absorbing structure includes a perforated surface with a plurality of through-holes, a first cavity that has a portion extending non-parallel to a normal direction of the perforated surface, the first cavity being breathable between an interior and exterior of the first cavity via the plurality of through-holes existing in a first region of the perforated surface, and a second cavity that is breathable between an interior and exterior of the second cavity via the plurality of through-holes existing in a second region adjacent to the first region of the perforated surface.
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