EP 0246464 B1 19901031 - SOUND-ABSORBING LAYER FOR A WALL OR COVERING
Title (en)
SOUND-ABSORBING LAYER FOR A WALL OR COVERING
Publication
Application
Priority
- DE 3616258 A 19860514
- DE 3643481 A 19861219
Abstract (en)
[origin: EP0246464A1] 1. A sound absorber for an acoustic wall or ceiling, with a grouping of Helmholtz resonators (1), before which an absorber panel (2) with coupling apertures (6) is fitted, the absorber panel (2) being completely covered over by a lining, characterized in that the lining is a wallpaper or a woven or felted textile wall covering or an embossed wall covering with a basis of plastics materials, the wall covering strips (3) of which are permeable to air at least in the regions of the coupling apertures (6).
IPC 1-7
IPC 8 full level
E04B 1/84 (2006.01); G10K 11/172 (2006.01); E04B 1/74 (2006.01); E04B 1/82 (2006.01)
CPC (source: EP)
E04B 1/8409 (2013.01); E04B 9/001 (2013.01); E04B 9/045 (2013.01); E04B 9/0457 (2013.01); E04B 9/0464 (2013.01); G10K 11/172 (2013.01); E04B 2001/747 (2013.01); E04B 2001/8281 (2013.01); E04B 2001/8461 (2013.01); E04B 2001/8471 (2013.01); E04B 2001/848 (2013.01)
Designated contracting state (EPC)
AT BE CH FR LI NL
DOCDB simple family (publication)
EP 0246464 A1 19871125; EP 0246464 B1 19901031; DE 3643481 A1 19871119; DE 3643481 C2 19891109
DOCDB simple family (application)
EP 87106062 A 19870425; DE 3643481 A 19861219