Emergency portable oxygen supply unit
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United States of America Patent
Stats
-
Jun 7, 1994
Grant Date -
N/A
app pub date -
Mar 19, 1992
filing date -
Mar 19, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An emergency portable oxygen supply unit for use in assisting a person to breath in an oxygen depleted environment such as that present within a structure during a structural fire. The unit has a face mask affixed to a housing which also supports an air filter and a source of pure oxygen. As the person wearing the air mask inhales, a flapper valve within the housing opens an oxygen valve and allows pure oxygen to be mixed with air which has passed through the air filter thereby providing breathable air.
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Family
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