EP 0193886 A2 19860910 - Membrane for a plane loudspeaker.
Title (en)
Membrane for a plane loudspeaker.
Title (de)
Membran für Planarlautsprecher.
Title (fr)
Membrane pour haut-parleur plan.
Publication
Application
Priority
DE 3507726 A 19850305
Abstract (en)
[origin: US4764968A] The disklike diaphragm is made up of an essentially conical plastic film provided with vacuum-formed supporting members which extend up to the disklike radiating layer.
Abstract (de)
Die neue Planarmembran besteht aus einer im wesentlichen konusförmigen Kunststoffolie (7), in welche bis zur plattenförmigen Abstrahlschicht (8) reichende Stützelemente (9) eingeprägt sind.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
Designated contracting state (EPC)
BE DE FR GB IT SE
DOCDB simple family (publication)
EP 0193886 A2 19860910; EP 0193886 A3 19880127; DE 3507726 A1 19860911; DE 3507726 C2 19920514; DK 97486 A 19860906; DK 97486 D0 19860304; NO 860671 L 19860908; US 4764968 A 19880816
DOCDB simple family (application)
EP 86102605 A 19860228; DE 3507726 A 19850305; DK 97486 A 19860304; NO 860671 A 19860224; US 83602686 A 19860304