Sound absorbing panel for interior walls

Details Sound absorbing panel for interior walls Sound absorbing panel for interior walls

1990-03-16

1991-06-18

Brown, Brian W.

Acoustics

Sound-modifying means

Sound absorbing panels

E04B 182

Patent

active

050242903

ABSTRACT:
A sound absorbing panel (1) is disclosed having several grooves (3a,3b) opening in the shape of a funnel in parallel opposite surfaces. At their intersections the grooves (3a, 3b) form relatively small holes. The grooves (3a, 3b) exhibit a funnel-shaped cross-section, as a result of which sound emerging behind the panel (1) is dissipated and effectively absorbed in a backing layer consisting, for example, of fiber glass. The panel (1) is flexible and reflects incident light well.

REFERENCES:
patent: 2954838 (1960-10-01), Nuorivaara
patent: 4261433 (1981-04-01), Propst
patent: 4555433 (1985-11-01), Jablonka et al.
patent: 4821839 (1989-04-01), D'Antonio et al.
patent: 4829728 (1989-05-01), Castelli

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