System for metering of breathing gas for accommodation of breathing demand
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United States of America Patent
Stats
-
May 9, 1989
Grant Date -
N/A
app pub date -
Apr 23, 1987
filing date -
Apr 23, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electronic-breathing mask system uses an electro-pneumatic valve for controlling air flow to a pilot. The system provides a continuous flow of air in an amount proportional to the pressure in the mask. The pressure in the mask is compared against a setpoint pressure to maintain a minimum derived pressure therein.
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