EP 4179736 A1 20230517 - ELECTRODYNAMIC TRANSDUCER
Title (en)
ELECTRODYNAMIC TRANSDUCER
Title (de)
ELEKTRODYNAMISCHER WANDLER
Title (fr)
TRANSDUCTEUR ELECTRODYNAMIQUE
Publication
Application
Priority
- FR 2007289 A 20200709
- EP 2021069063 W 20210708
Abstract (en)
[origin: WO2022008685A1] The invention relates to an electrodynamic transducer (1) comprising a magnetic mass (11) connected to the frame (5) via first and second axially offset suspension means (19), said means allowing translational displacement of the mass with respect to the frame, the suspension means having a plurality of basic springs, the direction of orientation of the basic springs of the first suspension means being opposite that of the basic springs of the second suspension means, such that each of the suspension means blocks axial rotation of the other suspension means.
IPC 8 full level
CPC (source: EP US)
H04R 1/025 (2013.01 - US); H04R 9/025 (2013.01 - EP US); H04R 9/041 (2013.01 - EP); H04R 9/043 (2013.01 - EP US); H04R 9/06 (2013.01 - US); H04R 2400/07 (2013.01 - EP US); H04R 2400/11 (2013.01 - US); H04R 2440/01 (2013.01 - EP); H04R 2499/13 (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
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3112445 A1 20220114; FR 3112445 B1 20230512; CN 116195272 A 20230530; EP 4179736 A1 20230517; US 2023254647 A1 20230810; WO 2022008685 A1 20220113
DOCDB simple family (application)
FR 2007289 A 20200709; CN 202180048310 A 20210708; EP 2021069063 W 20210708; EP 21743157 A 20210708; US 202118015100 A 20210708