Electroacoustic converter

Details Electroacoustic converter Electroacoustic converter

1987-11-25

1989-01-17

LaRoche, Eugene R.

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having electrostatic element

381194, 381199, 381202, H04R 718, H04R 720

Patent

active

047992662

ABSTRACT:
An electroacoustic converter comprising a magnetic circuit including a center pole, a magnet and a top plate with an upper side surface of the center pole being space from an adjacent side of the top plate. The top plate includes an incision on a horizontal rear surface thereof and a horizontal part adjacent to the incision. A diaphragm system is provided over the top of the center pole and includes a dome-like diaphragm, a cylinderical bobbin on which a voice coil is wound, and a brim-like suspension which extends outwardly from the bobbin. A guide ring is bridged between a ledge on a vertical surface of the center pole and the incision of the top plate. The periphery of the suspension of the diaphragm system is fixedly sandwiched between the horizontal part of the guide ring and the horizontal surface of the top plate.

REFERENCES:
patent: 2501032 (1950-03-01), Harbaugh
patent: 2554859 (1951-05-01), Hoekstra et al.
patent: 2590935 (1952-04-01), Charlesworth
patent: 2604551 (1952-07-01), Charlesworth
patent: 2670807 (1954-03-01), Brown
patent: 2910546 (1959-10-01), Swanson
patent: 3106670 (1963-10-01), Laux

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