Voice transmitting apparatus for a breathing mask

Details Voice transmitting apparatus for a breathing mask Voice transmitting apparatus for a breathing mask

1976-09-10

1978-02-07

Cooper, William C.

H04R 108

Patent

active

040728315

ABSTRACT:
An apparatus for transmitting the wearer's voice is mounted inside a breathing mask and includes a microphone and a protective sheath substantially encasing the microphone. The protective sheath includes a thin, pliable wall which is kept in contact with the sensing diaphragm of the microphone so that, when the wearer speaks and sets the sheath wall into vibration, the vibration is directly communicated to the microphone diaphragm. In one illustrative embodiment, the sheath is formed as an integral, continuous pocket in the mask body which extends inside the mask and has an opening out of the mask.

REFERENCES:
patent: 2937244 (1960-05-01), Weinger
patent: 3064089 (1962-11-01), Ward
patent: 3540442 (1970-11-01), Holloway

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