EP 1749294 A1 20070207 - ACOUSTIC SOUND PRODUCER
Title (en)
ACOUSTIC SOUND PRODUCER
Title (de)
AKUSTISCHER SCHALLERZEUGER
Title (fr)
PRODUCTEUR DE SON ACOUSTIQUE
Publication
Application
Priority
- BE 2005000049 W 20050414
- BE 200400263 A 20040527
Abstract (en)
[origin: WO2005116989A1] Acoustic sound producer which mainly consists of a housing, in which is provided a metal foil (6) with a piezo-ceramic disc (5) fixed onto it, and of means to provide an electric signal to the piezo-ceramic disc, characterised in that the above-mentioned metal foil (6) is fixed in the housing (2) by means of a polymeric membrane (4) which is fixed to the housing (2) at its perimeter and whereby the central part (21) of this polymeric membrane is tub-shaped.
IPC 8 full level
G10K 9/122 (2006.01)
CPC (source: EP)
G10K 9/122 (2013.01)
Citation (search report)
See references of WO 2005116989A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005116989 A1 20051208; BE 1016058 A3 20060207; EP 1749294 A1 20070207
DOCDB simple family (application)
BE 2005000049 W 20050414; BE 200400263 A 20040527; EP 05737805 A 20050414