MUMBAI, India, Nov. 14 -- Intellectual Property India has published a patent application (202517094923 A) filed by Saint-Gobain Glass France, Courbevoie, France, on Oct. 3, for 'glazing with improved acoustic insulation performance.'
Inventor(s) include Abbad, Ahmed; and Schreiber, Walter.
The application for the patent was published on Nov. 14, under issue no. 46/2025.
According to the abstract released by the Intellectual Property India: "The present invention relates to a glazing (100) comprising at least two glass walls (101, 102) forming a cavity (103) therebetween, wherein the cavity (103) comprises at least one sound-absorbent device (1) comprising a profile (2) or box formed of a plurality of walls (4, 5, 6), said walls (4, 5, 6) surrounding a chamber (3), said walls (4, 5, 6) comprising an inner wall face (11) facing said chamber (3) and an outer wall face (10) opposite to the inner wall face (11), said walls (4, 5, 6) comprising at least one perforated wall (4) provided with a plurality of periodically arranged wall perforations (7), with each of said wall perforations (7) extending from said inner wall face (11) to said outer wall face (10), said outer wall face (10) of at least one of said walls (4, 5, 6) being provided with a sound-absorbent layer (8) comprising or consisting of a sound-absorbent material, wherein i) the outer wall face (10) of said perforated wall (4) being provided with said sound-absorbent layer (8), said sound-absorbent layer (8) comprising an inner layer face (13) facing said chamber (3) and an outer layer face (12) opposite to the inner layer face (13), said sound absorbent layer (8) being provided with a plurality of layer perforations (9), with each of said layer perforations extending from said inner layer face (13) to said outer layer face (12), said layer perforations (8) being flush with said wall perforations (7), or ii) said walls (4, 5, 6) comprise an inner wall (4) facing the cavity (103) of the glazing (100) and an outer wall (5) opposite thereto, said inner wall (4) and said outer wall (5) being connected by side walls (6), with the outer wall face (10) of exclusively one or each of said side walls (6) being provided with said sound-absorbent layer (8), or iii) said walls (4, 5, 6) comprise an inner wall (4) facing the cavity (103) of the glazing (100) and an outer wall (5) opposite thereto, said perforated wall (4) being said inner wall, the outer wall face (10) of said outer wall (5) being provided with said sound-absorbent layer (8), with said outer wall (5) being provided with a plurality of periodic or non-periodic openings."
The patent application was internationally filed on Mar. 27, 2024, under International application No.PCT/EP2024/058175.
Disclaimer: Curated by HT Syndication.
