EP 0015013 A1 19800903 - Universal dome loudspeaker construction element.
Title (en)
Universal dome loudspeaker construction element.
Title (de)
Universelles Kalottenlautsprecher-Bauelement.
Title (fr)
Haut-parleur du type à dÔme à élément de construction universel.
Publication
Application
Priority
DE 2905566 A 19790214
Abstract (en)
A dome loudspeaker component of simple construction consisting of a permanent magnet system and a moulded part to which the dome diaphragm with voice coil is firmly connected. <IMAGE>
Abstract (de)
Einfach aufgebautes Kalottenlautsprecher-Bauelement bestehend aus einem Dauermagnetsystem und einem Formteil, mit dem die Kalottenmembran mit Schwingspule fest verbunden ist.
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)
H04R 9/06 (2013.01)
Citation (search report)
- US 3780232 A 19731218 - WARD L
- US 3079471 A 19630226 - WIDENER MAURICE W
- US 3792526 A 19740219 - BREMSETH G
- DE 1817431 A1 19690814 - NIPPON MUSICAL INSTRUMENTS MFG
- GB 1371338 A 19741023 - EMI LTD
Designated contracting state (EPC)
BE DE FR GB SE
DOCDB simple family (publication)
EP 0015013 A1 19800903; DE 2905566 A1 19800828; DK 60880 A 19800815; JP S55130300 A 19801008; NO 800275 L 19800815
DOCDB simple family (application)
EP 80200068 A 19800124; DE 2905566 A 19790214; DK 60880 A 19800213; JP 1561280 A 19800213; NO 800275 A 19800204