Passenger oxygen mask having a plurality of fingers and recesses

Details Passenger oxygen mask having a plurality of fingers and recesses Passenger oxygen mask having a plurality of fingers and recesses

1992-07-01

1993-11-30

Fisher, J. Reed

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820517, 12820524, A62B 1802, A62B 902

Patent

active

052655970

ABSTRACT:
A lightweight, easily maintainable passenger oxygen mask is provided with a face mask sized to cover the mouth and nose of a passenger and a reservoir bag in communication with the face mask. Oxygen is permitted to flow through the bag into the mask, while being prevented from flowing back into the bag. A bag connector is positionable within the bag for holding the bag against the face mask, and cooperative structure is provided on the connector and the mask for providing snap-fit connection between the connector and the face mask to permit the bag connector to be selectively, manually attached to and removed from the face mask.

REFERENCES:
patent: 3720235 (1973-03-01), Schrock
patent: 3757776 (1973-09-01), Bauman
patent: 4098271 (1978-07-01), Maddock
patent: 4446864 (1984-05-01), Watson et al.
patent: 4559939 (1985-12-01), Levine et al.
patent: 4793342 (1988-12-01), Haber et al.
patent: 4909247 (1990-03-01), Terrisse et al.
patent: 5007421 (1991-04-01), Stewart

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