Title (en)

MEMBRANE OR MEMBRANE ARRANGEMENT FOR AN ELECTRODYNAMIC SOUND TRANSDUCER, AND LOUDSPEAKER COMPRISING SUCH A MEMBRANE OR MEMBRANE ARRANGEMENT

Title (de)

MEMBRAN BZW. MEMBRAN-ANORDNUNG FÜR EINEN ELEKTRODYNAMISCHEN SCHALLWANDLER BZW. LAUTSPRECHER MIT EINER DERARTIGEN MEMBRAN ODER MEMBRAN-ANORDNUNG

Title (fr)

MEMBRANE OU ENSEMBLE MEMBRANE POUR UN TRANSDUCTEUR ACOUSTIQUE ÉLECTRODYNAMIQUE ET HAUT-PARLEUR COMPRENANT UNE TELLE MEMBRANE OU UN TEL ENSEMBLE MEMBRANE

Publication

EP 2143299 A1 20100113 (DE)

Application

EP 08749264 A 20080430

Priority

• EP 2008003517 W 20080430
• DE 102007020847 A 20070502

Abstract (en)

[origin: US2010098271A1] A membrane for an electrodynamic sound transducer, particularly a membrane for an AMT loudspeaker, has a meandering shape and is disposed in an air gap between two pole plates. The membrane has a plurality of opposite flanks and a plurality of wave crests and/or wave troughs. In order to avoid parasitic oscillations, at least one supporting element is provided which stabilizes the position and/or the orientation of at least one wave crest and/or wave trough.

IPC 8 full level

H04R 7/12 (2006.01); H04R 7/26 (2006.01)

CPC (source: EP US)

H04R 1/323 (2013.01 - EP US); H04R 9/048 (2013.01 - EP US); H04R 1/24 (2013.01 - EP US); H04R 7/14 (2013.01 - EP US)

Citation (search report)

See references of WO 2008135221A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

DOCDB simple family (publication)

US 2010098271 A1 20100422; US 8208678 B2 20120626; AT E543344 T1 20120215; DE 102007020847 A1 20081106; DE 102007020847 B4 20091126; DE 112008001166 A5 20100506; EP 2143299 A1 20100113; EP 2143299 B1 20120125; ES 2380273 T3 20120510; WO 2008135221 A1 20081113

DOCDB simple family (application)

US 61074009 A 20091102; AT 08749264 T 20080430; DE 102007020847 A 20070502; DE 112008001166 T 20080430; EP 08749264 A 20080430; EP 2008003517 W 20080430; ES 08749264 T 20080430