Acoustic shielding article

Details Acoustic shielding article Acoustic shielding article

G - Physics

10

K

G10K 11/16 (2006.01) B60R 13/08 (2006.01) F02B 77/13 (2006.01) G10K 11/162 (2006.01)

Patent

CA 2416585

An acoustic shielding article which includes a shaped thermoplastic element that has a metal inlay element fixedly attached thereto, is described. More particularly, the acoustic shielding article (1) includes: (a) a shaped thermoplastic element (3) having a surface (11) that faces a source of sound (14); and (b) a metal inlay element (2) having substantially opposed first (17) and second (20) surfaces, at least one of which is fixedly joined to the shaped thermoplastic element. The shaped thermoplastic element is formed by means of molding thermoplastic material onto at least one of the first and second surfaces of the metal inlay element, thereby fixedly joining the metal inlay element to the shaped thermoplastic element. In an embodiment of the present invention, the metal inlay element has a plurality of perforations having edges, and a portion of the thermoplastic material of the shaped thermoplastic element extends through and embeds the edges of at least some of the perforations, thereby fixedly attaching the metal inlay element to the shaped thermoplastic element. The acoustic shielding article of the present invention may be used as an air intake pipe of an internal combustion engine, e.g., of a motor vehicle.

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