Oxygen respirator with oxygen-supplying chemical cartridge

Details Oxygen respirator with oxygen-supplying chemical cartridge Oxygen respirator with oxygen-supplying chemical cartridge

1977-07-11

1979-05-15

Recla, Henry J.

Surgery

Truss

Pad

128142R, 128147, A62B 710

Patent

active

041542363

ABSTRACT:
An oxygen respirator, comprises a portable container having a cartridge chamber with a cylindrical oxygen-supplying chemical cartridge centrally located in the chamber and with a replaceable CO.sub.2 -absorbing cartridge concentrically surrounding the chemical cartridge. The cartridge chamber is closed by a baseplate which includes a mouthpiece connection defining a mouthpiece passage for respirator air for the user which connects downwardly into the chamber through an associated check valve for flow downwardly through the annular CO.sub.2 -absorbing cartridge and upwardly through the oxygen-supplying chemical cartridge which, after initial ignition, supplies oxygen to the respiratory air which is circulated back to the mouthpiece passage either directly or through a breathing bag which is mounted in the respiratory air breathing passages.

REFERENCES:
patent: 2507450 (1950-05-01), Millikan et al.
patent: 3276846 (1966-10-01), Moni et al.
patent: 3397693 (1968-08-01), Warncke

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