Sound muffler for covering the mouth

Details Sound muffler for covering the mouth Sound muffler for covering the mouth

1987-03-30

1989-05-30

Fuller, B. R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181 21, 181175, 381158, 381169, G10K 1100

Patent

active

048342122

ABSTRACT:
A human sound muffler and indicator for placement around the mouth of a user to absorb most of the sound emanating from the user's mouth including a microphone and associated electrical circuit for receiving unabsorbed sound and providing an indication of the intensity of the unabsorbed sound.

REFERENCES:
patent: 1776584 (1930-09-01), Gerlach, Jr.
patent: 2485278 (1949-10-01), Gilmen et al.
patent: 2882355 (1959-04-01), Webb
patent: 4129754 (1978-12-01), Gore

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