Breathing apparatus

Details Breathing apparatus Breathing apparatus

1988-03-29

1989-04-18

Sewell, Paul T.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820521, 12820426, 12820428, 12820517, A62B 700, A62B 900

Patent

active

048217123

ABSTRACT:
A portable, emergency breathing apparatus is provided that comprises an elastomeric bladder adapted to receive an emergency supply of pressurized oxygen-containing gas; valve means adapted to inject the oxygen-containing gas into the elastomeric bladder; conduit means providing gaseous fluid communication between the elastomeric bladder and a mouthpiece; and valve means adapted to control the flow of the oxygen-containing gas from the elastomeric bladder through the conduit to the mouthpiece.

REFERENCES:
patent: 2428425 (1947-10-01), Levitt
patent: 2696211 (1954-12-01), Gatty
patent: 3291121 (1966-12-01), Vizneau
patent: 4164218 (1979-08-01), Martin
patent: 4221216 (1980-09-01), Kranz
patent: 4362153 (1982-12-01), Wilson et al.
patent: 4409978 (1983-10-01), Bartos
patent: 4440163 (1984-04-01), Spergel
patent: 4573463 (1986-03-01), Hall
patent: 4696295 (1987-09-01), Constance-Hughes

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