Global Patent Index - EP 3935624 B1

EP 3935624 B1 20230802 - 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

EP 3935624 B1 20230802 (DE)

Application

EP 20709569 A 20200306

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 1/86 (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)

Citation (opposition)

Opponent : Sandler AG

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

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