Oxygen masks
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United States of America Patent
Stats
-
Jul 23, 1996
Grant Date -
N/A
app pub date -
Jan 26, 1995
filing date -
Jun 12, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pressure breathing mask, particularly an aircrew oxygen mask, includes an exoskeleton (10), a flexible facepiece (11) with an oxygen delivery connection (15), an inflatable bladder (20) positioned between the exoskeleton (10) and a rigid intermediate member (30), the intermediate member (30) bearing on the facepiece (11), and means (21, 23) for automatically inflating the bladder (20) when oxygen is delivered under pressure to the mask.
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