Global patent index - EP 1040727 A2

EP 1040727 A2 2000-10-04 - MOVING-COIL LOUDSPEAKER

Title (en)

MOVING-COIL LOUDSPEAKER

Title (de)

LAUTSPRECHER MIT BEWEGLICHER SPULE

Title (fr)

HAUT-PARLEUR A BOBINE MOBILE

Publication

EP 1040727 A2 (EN)

Application

EP 98955893 A

Priority

  • IT 9800310 W
  • IT BO970658 A

Abstract (en)

[origin: WO9925149A2] A loudspeaker (1) having a substantially cup-shaped frame (2); a magnetic body (3) extending inside the frame (2) and coaxial with a longitudinal axis (A) of the frame (2); a substantially truncated-cone-shaped diaphragm (4) fitted in axially-sliding manner to the magnetic body (3); and an actuating coil (8) fitted in axially-sliding manner to the magnetic body (3) and integral with the diaphragm (4); the loudspeaker (1) also having a first annular centering and damping membrane (14) connecting the magnetic body (3) to the diaphragm (4); and a second annular centering and damping membrane (17) connecting the coil (8) to the lateral wall (18) of the frame (2).

IPC 1-7 (main, further and additional classification)

H04R 9/06

IPC 8 full level (invention and additional information)

H04R 7/16 (2006.01); H04R 7/18 (2006.01); H04R 9/02 (2006.01); H04R 9/04 (2006.01)

CPC (invention and additional information)

H04R 9/041 (2013.01); H04R 7/16 (2013.01); H04R 9/025 (2013.01)

Citation (third parties)

Third party :

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI NL PT SE

EPO simple patent family

WO 9925149 A2 19990520; WO 9925149 A3 19990722; AT 226384 T 20021115; AU 1257999 A 19990531; CA 2309209 A1 19990520; CN 1282502 A 20010131; DE 69808799 D1 20021121; DE 69808799 T2 20030703; EP 1040727 A2 20001004; EP 1040727 B1 20021016; ES 2186239 T3 20030501; IT 1296539 B1 19990709; IT BO970658 A1 19990506; IT BO970658 D0 19971106; JP 2001523079 A 20011120

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