INTERFERENCE NOISE-CONTROL UNIT
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United States of America
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Issued Date -
Mar 17, 2022
app pub date -
Dec 3, 2019
filing date -
Dec 3, 2019
priority date (Note) -
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Abstract
The present inventive concept relates to an interference noise-control unit, for installation on a sound arresting wall for reducing noise from trains or cars. The interference noise-control unit comprises: a housing to be secured on a sound arresting wall. The housing comprises a hollow compartment comprising at least one first channel and at least one second channel, wherein the first channel has a first channel height A and a first channel length B, and wherein the second channel has a second channel height A′ and a second channel length B′, and wherein the first channel height A is different from the second channel height A′.
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