Breathing mask having a transducer movable parts coupled to a sp

Details Breathing mask having a transducer movable parts coupled to a sp Breathing mask having a transducer movable parts coupled to a sp

1986-08-21

1988-01-12

Coven, Edward M.

Surgery

Respiratory method or device

Means for transmitting, or facilitating, voice communication...

A62B 714

Patent

active

047184159

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.

REFERENCES:
patent: 2123196 (1938-07-01), Millard
patent: 3109425 (1963-11-01), Gongoll et al.
patent: 4072831 (1978-02-01), Joscelyn
patent: 4164942 (1979-08-01), Beard et al.
patent: 4402316 (1983-09-01), Gadberry

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