Breathing mask having a transducer movable parts coupled to a speaking diaphragm for speech transmission
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United States of America Patent
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-
Jan 12, 1988
Issued Date -
N/A
app pub date -
Aug 21, 1986
filing date -
Dec 27, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A breathing mask includes a carrier which has an inhalation passage and an exhalation passage and a passage over which a speaking diaphragm is extended for speech transmission from the interior of the mask to the exterior. In accordance with the invention an electrostatic transducer has a moving part which is coupled directly to the speaking diaphragm to provide for improved speech transmission.
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