EP 1483457 A1 20041208 - ACOUSTIC CONSTRUCTION ELEMENT
Title (en)
ACOUSTIC CONSTRUCTION ELEMENT
Title (de)
AKUSTISCHES BAUELEMENT
Title (fr)
ELEMENT DE CONSTRUCTION ACOUSTIQUE
Publication
Application
Priority
EP 0203045 W 20020314
Abstract (en)
[origin: WO03076736A1] Acoustic construction element comprising sound insulating cavities having a constant shape along an axis parallel to the exposed surface of the construction element, at least part of said cavities comprising a first portion, situated closest to the external surface of the element, having a smaller width than the maximum width of a second, internal portion of the cavity, of which: - at least part of said cavities have different depths; - at least part of said cavities have different internal volumes and/or different internal shapes; - at least part of said cavities have a substantially constant width over their entire depth; - and at least part of said cavities are completely or partially filled with sound insulating material.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
E01F 8/0082 (2013.01 - EP US); E04B 1/8404 (2013.01 - EP US); E04B 2001/8485 (2013.01 - EP US); E04B 2001/849 (2013.01 - EP US)
Citation (search report)
See references of WO 03076736A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 03076736 A1 20030918; AU 2002257683 A1 20030922; CA 2479258 A1 20030918; EP 1483457 A1 20041208; US 2005167193 A1 20050804
DOCDB simple family (application)
EP 0203045 W 20020314; AU 2002257683 A 20020314; CA 2479258 A 20020314; EP 02727439 A 20020314; US 50712304 A 20041020