Sound generator

Details Sound generator Sound generator

1996-12-26

1998-01-27

Dang, Khanh

Acoustics

Miscellaneous

446192, 446193, G01K 1100, A63H 331

Patent

active

057124523

ABSTRACT:
An improved sound generator includes a vibrating plate and a casing. The vibrating plate may become concave upon pressure and may return to its convex shape automatically to generate vibration and thus sound. An elastic plate is attached to the convex surface of the vibrating plate. The elastic plate is made of a material which may quickly return to its normal state after being compressed. The elastic plates prevents direct contact between an object or finger exerting a force and the vibrating plate, which may reduce the amplitude and thus the sound generated. The elastic plate absorbs the external force and release instantly its potential energy to counter the force exerted thereon so that the deformation of the vibrating plate may speed up to enhance the amplitude and sound volume. The sound generator may be used in toys or to substitute conventional castanets.

REFERENCES:
patent: 1039814 (1912-10-01), Sacavem
patent: 4391061 (1983-07-01), Fogarty et al.
patent: 4757739 (1988-07-01), Yeh
patent: 5419730 (1995-05-01), Diresta et al.
patent: 5522756 (1996-06-01), Barthhold

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