Device for providing protection against hypoxia, usable in a hostile environment
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United States of America Patent
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Feb 18, 2003
Grant Date -
N/A
app pub date -
Jun 10, 1998
filing date -
Jun 10, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The device has a face cover, a mouth-and-nose mask, and fasteners for holding the face cover on the face. The face cover is provided with a flexible gasket surrounding the eyes, a sea means at its periphery, and a closable coupling to a filtered gas feed. The mouth-and-nose mask, placed inside the face cover, is fitted with a demand regulator and with a direct exhaust to atmosphere. The breathe-in and breathe-out paths are separated by cases.
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