Foam acoustic absorption member

Details Foam acoustic absorption member Foam acoustic absorption member

1985-12-11

1987-12-29

Nozick, Bernard

Acoustics

Sound-modifying means

Sound absorbing panels

264515, 264516, 181288, 181292, 181293, E04B 182

Patent

active

047154730

ABSTRACT:
A foam acoustic absorption member having a stabilizing layer with perforations and, in order to obtain a simple, stable structural shape of homogeneous resistance to flow, the stabilizing layer (2) is a wide-side wall of a hollow body (K) which wall is pressed, under thermal deformation, against the foam layer (1), the openings in said hollow body consisting of holes (9) punched from the foam side.

REFERENCES:
patent: 4128683 (1978-12-01), Nomura et al.
patent: 4170674 (1979-10-01), Matsuki
patent: 4253543 (1981-03-01), Johansson
patent: 4584232 (1986-04-01), Frank et al.

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