EP 2461220 B1 20191106 - Acoustic membrane for a musical box or an alarm watch
Title (en)
Acoustic membrane for a musical box or an alarm watch
Title (de)
Schallabstrahlungsmembran für eine Spieluhr oder eine Armbanduhr mit Schlagwerk
Title (fr)
Membrane de rayonnement acoustique pour une boîte à musique ou une montre à sonnerie
Publication
Application
Priority
EP 10193427 A 20101202
Abstract (en)
[origin: EP2461220A1] The acoustic radiating membrane (1) includes, over a first thickness of the total thickness of the membrane, a certain number of cells (5,6) or a certain number of projecting portions. The shape and dimension of each cell or of each portion are adapted according to the type of material and the note to be radiated by the membrane. An independent claim is also included for a striking or musical watch.
IPC 8 full level
G04B 37/00 (2006.01); G10K 13/00 (2006.01)
CPC (source: EP US)
G04B 37/0075 (2013.01 - EP US); G04G 17/02 (2013.01 - EP US); G10K 9/20 (2013.01 - EP US); G10K 13/00 (2013.01 - EP US)
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)
EP 2461220 A1 20120606; EP 2461220 B1 20191106; CH 704183 A2 20120615; CN 102540854 A 20120704; CN 102540854 B 20140709; HK 1172958 A1 20130503; JP 2012118067 A 20120621; JP 5863416 B2 20160216; US 2012140602 A1 20120607; US 8638644 B2 20140128
DOCDB simple family (application)
EP 10193427 A 20101202; CH 20232010 A 20101202; CN 201110396935 A 20111202; HK 13100062 A 20130103; JP 2011258257 A 20111125; US 201113283149 A 20111027