Emergency portable oxygen supply unit

Details Emergency portable oxygen supply unit Emergency portable oxygen supply unit

1992-03-19

1994-06-07

Burr, Edgar S.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820524, 12820525, 12820712, 12820512, A62B 902

Patent

active

053180194

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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