Audio-frequency electromechanical vibrator

Details Audio-frequency electromechanical vibrator Audio-frequency electromechanical vibrator

1985-09-11

1987-07-14

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Reciprocating

310 25, H02K 4100

Patent

active

046804927

ABSTRACT:
An audio frequency electromechanical vibrator comprising a flat plate permanent magnet magnetized in a predetermined direction and a coil wound around the permanent magnet for crossing the direction of magnetization. The permanent magnet and coil are fixedly disposed in a yoke which is elastically supported in a case through a spring plate. The case partly consists of a magnetic plate which is placed for opposing the permanent magnet to form a magnetic flux circuit, whereby the vibrator can generate a vibration corresponding to an audio signal applied to the coil.

REFERENCES:
patent: 1746171 (1930-02-01), Vatinet et al.
patent: 2548990 (1951-04-01), McLoad
patent: 3018467 (1962-01-01), Harris
patent: 3202847 (1965-08-01), Erickson
patent: 3440459 (1969-04-01), Pitt et al.
patent: 3774058 (1973-11-01), Abel
patent: 4439700 (1984-03-01), Menzel et al.

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