EP 0022544 B1 19821117 - ELECTRODYNAMIC TRANSDUCER, IN PARTICULAR FOR TELEPHONIC APPARATUS
Title (en)
ELECTRODYNAMIC TRANSDUCER, IN PARTICULAR FOR TELEPHONIC APPARATUS
Publication
Application
Priority
DE 2927925 A 19790711
Abstract (en)
[origin: EP0022544A1] 1. Electro-dynamic transducer particularly for telephone stations with terminals (22) on the bottom side consisting of a housing (11) closeable with a cover (12) in which an assembly case (1) can be inserted, said assembly case (1) holds the membrane (3) with coil (6) and the magnetic system (14, 15, 16), whereby the cup shaped assembly case is provided with a concentric bearing surface (2) for the membrane (3) and two guiding slits (4, 18) for the connecting wires (23) of the coil (6) fixed on the membrane (3), said transducer comprising that the assembly case on its upper side is provided with a flange (5), that the bearing surface (2) is located within the flange (5) and is furnished with two parallel side by side oriented slits (4) running transversally across the whole width intersecting the flange (5).
IPC 1-7
IPC 8 full level
CPC (source: EP)
Designated contracting state (EPC)
AT BE CH FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0022544 A1 19810121; EP 0022544 B1 19821117; AT E1836 T1 19821215; DE 2927925 A1 19810122; DE 2927925 C2 19830120
DOCDB simple family (application)
EP 80103889 A 19800708; AT 80103889 T 19800708; DE 2927925 A 19790711