EP 0531691 B1 19970604 - Moving coil system for an electromagnetic transducer
Title (en)
Moving coil system for an electromagnetic transducer
Title (de)
Schwingspulsystem für einen elektromagnetischen Wandler
Title (fr)
Système de bobine mobile pour des transducteurs électromagnétiques
Publication
Application
Priority
DE 4130460 A 19910913
Abstract (en)
[origin: EP0531691A2] To improve loudspeakers (10) having an internal magnetic system (11), it is proposed to design the moving coil (21) without a support and connect it to a tube section (20) formed together during the production of the diaphragm (13). <IMAGE>
IPC 1-7
IPC 8 full level
H04R 9/02 (2006.01); H04R 9/04 (2006.01); H04R 9/06 (2006.01)
CPC (source: EP US)
H04R 9/025 (2013.01 - EP US); H04R 9/041 (2013.01 - EP US); H04R 2209/022 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE DK FR GB IT SE
DOCDB simple family (publication)
EP 0531691 A2 19930317; EP 0531691 A3 19940720; EP 0531691 B1 19970604; CZ 280992 A3 19930317; CZ 281356 B6 19960911; DE 4130460 A1 19930318; DE 59208565 D1 19970710; DK 0531691 T3 19971027; JP H05219592 A 19930827; PL 169087 B1 19960531; PL 295717 A1 19930419; US 5424496 A 19950613
DOCDB simple family (application)
EP 92112916 A 19920729; CS 280992 A 19920911; DE 4130460 A 19910913; DE 59208565 T 19920729; DK 92112916 T 19920729; JP 24515092 A 19920914; PL 29571792 A 19920824; US 15977193 A 19931130