Small sound generating device

Details Small sound generating device Small sound generating device

1986-03-20

1989-03-07

Caldwell, Sr., John W.

Communications: electrical

Audible indication

Ultrasonic pest control

340384R, 381 90, 446297, G08B 300

Patent

active

048109975

ABSTRACT:
A small sound generating device such as may be incorporated into a child's stuffed doll or the like. The device includes a cover having a sound radiating hole formed therein, a holding plate, a sound generating element supported between the cover and the holding plate, a touch plate case, and a circuit board supported between the rear side of the holding plate and the touch plate case. A contact switch is provided on the rear side of the circuit board, and the touch plate of the contact switch is exposed through a window formed in the touch plate case.

REFERENCES:
patent: 3932868 (1976-01-01), Saitou
patent: 3996429 (1976-12-01), Chu et al.
patent: 4210223 (1980-07-01), Gillum
patent: 4245218 (1981-01-01), Berkebile et al.
patent: 4249338 (1981-02-01), Wexler
patent: 4263485 (1981-04-01), Corwin
patent: 4537109 (1985-08-01), Sakurai
patent: 4597099 (1986-06-01), Sawafuji
patent: 4604606 (1986-08-01), Sweany

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