Soundproofing coating comprising a cellular structure
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United States of America Patent
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Sep 10, 2024
Grant Date -
Nov 10, 2022
app pub date -
Jun 16, 2020
filing date -
Jul 5, 2019
priority date (Note) -
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Abstract
A soundproofing coating with a cellular structure having several structures connected in a transverse direction, each formed by connecting a first longitudinal strip with a second longitudinal strip. Each structure has, successively in the longitudinal direction, 1) a first cavity, the cross-section of which narrows gradually in the thickness of the coating until it closes, 2) a first connection of two walls, respectively of the first strip and the second strip, in contact with each other over part of the thickness of the coating, which provides a passage between the first cavity and a second cavity that thus form a Helmholtz resonator, 3) the second cavity, the cross-section of which gradually increases in the thickness of the coating and which is closed by a closing sheet, and 4) a second connection of two walls.
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