Sound producing device

Details Sound producing device Sound producing device

1976-03-19

1977-06-21

Claffy, Kathleen H.

A61M 2100

Patent

active

040313204

ABSTRACT:
An apparatus for inducing general relaxation and sleep is described which plugs into a regular electrical outlet and emits a low, but constant humming sound of barely audible amplitude within specified decibel ranges, frequency ranges, oscillatory amplitude ranges, and periodicity ranges. In the preferred embodiment of the device, a housing is provided having a plug protruding therefrom which enables the housing to cover an outlet to prevent small infants from receiving electrical shocks. An alternate embodiment is provided wherein the sound producing device further comprises a night light assembly.

REFERENCES:
patent: 2304095 (1942-12-01), Hull
patent: 3213851 (1965-10-01), Curren
patent: 3272198 (1966-09-01), Balkin

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