SEALED LOUDSPEAKER COMMUNICATION APPARATUS Russian patent published in 2006 - IPC H04R1/44 

FIELD: electroacoustic communications engineering.

SUBSTANCE: proposed apparatus that has shielding casing accommodating electroacoustic transducer, receive-transmit mode selector switch and cable is provided with newly introduced inductor-type connector whose first and second coils are coupled, respectively, with electroacoustic transducer and cable; shielding casing is assembled of removable unsealed block and fixed sealed one; receive-transmit mode selector switch is made in the form of ferreed relay incorporating permanent control magnet mechanically coupled with push-to-talk switch. First coil of connector and permanent magnet are installed in unsealed removable block, ferreed relay and second coil of connector, in sealed fixed block.

EFFECT: enhanced reliability under impact of high hydrostatic pressure.

2 cl, 1 dwg