SOUND ABSORBER
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United States of America Patent
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Issued Date -
Oct 27, 2022
app pub date -
Oct 1, 2020
filing date -
Oct 1, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a sound absorber (1) for a traffic route noise protection wall, wherein the sound absorber (1) comprises at least one plastic foam board (2). According to the invention, a first surface (3) of the plastic foam board (2) has a predeterminable number of sound absorber recesses (4) for predetermination of the absorption behavior with a predeterminable frequency response, wherein each of the sound absorber recesses (4) extends only through part of the thickness (5) of the plastic foam board (2).
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