Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Patent
1997-07-18
1999-09-14
Kuntz, Curtis A.
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Electromagnetic
381412, 381340, 381417, 3403881, 3403911, H04R 100, H04R 906, H04R 102
Patent
active
059534362
ABSTRACT:
An apparatus for generating a audible tone is disclosed. The apparatus includes a ferromagnetic container 105, a ferromagnetic pole 110, a coil 115, a first stationary lead wire 175, a second stationary lead wire 180, and a flexible ferromagnetic diaphragm 120. The ferromagnetic pole 110 is disposed within the ferromagnetic container 105. The coil 115 is encircling a portion of the ferromagnetic pole 110. The coil 115 has an input end 165 connected to a first stationary lead wire 175, configured to receive an electrical signal, and an output end 170 connected to a second stationary lead wire 180. The flexible ferromagnetic diaphragm 120 is disposed along the top edge 135 of the ferromagnetic container 105. The flexible ferromagnetic diaphragm 120 is configured to flex when magnetically attracted toward the ferromagnetic pole 110. As the flexible ferromagnetic diaphragm 120 flexes the first stationary lead wire 175 and the second stationary lead wire 180 will remain stationary.
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Barnie Rexford N
Caterpillar Inc.
Donato, Jr. Mario J.
Kuntz Curtis A.
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