Speech diaphragm and exhalation valve

A combined speech diaphragm and exhalation valve for a respirator is formed as a unitary sub-assembly (10) whereby the speech diaphragm (44) is movable in unison with the exhalation valve (24) by the modulated air pressure expelled by the user when speaking. Such an arrangement enhances the volume a...

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Bibliographic Details
Main Author GRANATIERO, NINO M
Format Patent
LanguageEnglish
French
German
Published 20.10.1993
Edition5
Subjects
DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
FIRE-FIGHTING
HUMAN NECESSITIES
LIFE-SAVING
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