Electromagnetically operated audible signal generator

Details Electromagnetically operated audible signal generator Electromagnetically operated audible signal generator

1976-11-04

1977-08-02

Pitts, Harold I.

Communications: electrical

Audible indication

Percussion-type sound producer

340396, 340400, G10K 912

Patent

active

040400514

ABSTRACT:
An audible signal generator comprises a coil, a pole piece, and an armature movably mounted with respect to the pole piece so that one end of the armature approaches the pole piece upon energization of the coil. The pole piece has a pair of spaced protrusions that extend toward the one end of the armature, and a cantilever spring member is supported on the pole piece so as to extend between the spaced protrusions. The one end of the armature has a protrusion that extends toward the pole piece and is located so as to engage the portion of the spring member in between the spaced protrusions of the pole piece.

REFERENCES:
patent: 3116481 (1963-12-01), Kalin

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