EP 3935624 A1 20220112 - SOUND ABSORBER, STRUCTURE AND USE OF A SOUND ABSORBER
Title (en)
SOUND ABSORBER, STRUCTURE AND USE OF A SOUND ABSORBER
Title (de)
SCHALLABSORBER, BAUWERK UND VERWENDUNG EINES SCHALLABSORBERS
Title (fr)
ABSORBEUR ACOUSTIQUE, STRUCTURE ET UTILISATION D'UN ABSORBEUR ACOUSTIQUE
Publication
Application
Priority
- EP 2020056017 W 20200306
- DE 102019203112 A 20190307
- DE 102019208743 A 20190617
Abstract (en)
[origin: WO2020178427A1] The invention relates to a use of a sound absorber with an open-pored base plate (1), which has a flow resistance of approximately 500 Ns/m3 to approximately 6000 Ns/m3 according to DIN EN 29053:1993-05, with at least a partial surface of the base plate (1) being provided with a microperforated material layer (2), in or on a building. The invention further relates to a sound absorber with at least one open-pored base plate (1), which has a flow resistance of approximately 500 Ns/m3 to approximately 6000 Ns/m3 according to DIN EN 29053:1993-05, with at least a partial surface of the base plate (1) being provided with a microperforated material layer (2) which is connected to the base plate (1) only in a strip-like or linear or punctiform manner, and a structure provided with such a sound absorber.
IPC 8 full level
G10K 11/172 (2006.01); E04B 1/84 (2006.01); G10K 11/168 (2006.01)
CPC (source: EP)
E04B 1/86 (2013.01); G10K 11/168 (2013.01); G10K 11/172 (2013.01); E04B 2001/8433 (2013.01); E04B 2001/8461 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020178427 A1 20200910; EP 3935624 A1 20220112; EP 3935624 B1 20230802; EP 3935624 C0 20230802
DOCDB simple family (application)
EP 2020056017 W 20200306; EP 20709569 A 20200306