Breathing apparatus and installation providing protection against hypoxia
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 2, 2005
Grant Date -
Jan 16, 2003
app pub date -
Jul 9, 2002
filing date -
Jul 11, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A breathing apparatus for an aircraft crew member has a breathing mask provided with a demand regulator and connected to a source of breathing gas, such as a pressurized oxygen cylinder or preferably an OBOGS. The apparatus includes an individual buffer plenum specific to the mask on a line for feeding the regulator of the mask from the source. The volume of the plenum is sufficient to provide for at least two typical breaths of the mask wearer in succession. A non-return check valve is located between the plenum and the source.
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