Breathing apparatus

Details Breathing apparatus Breathing apparatus

1976-09-08

1979-08-07

Recla, Henry J.

Surgery

Truss

Pad

A62B 702

Patent

active

041634489

ABSTRACT:
The present invention concerns closed circuit breathing apparatus comprising a mask having inhalation and exhalation ducts in communication with a regenerator for regenerating exhaled air. A source of air under pressure is connected to the closed circuit so as to feed unused air into the circuit in such a manner as to draw regenerated air to the mask and to maintain a slight over pressure.

REFERENCES:
patent: 2854972 (1958-10-01), Cummins
patent: 3249107 (1966-05-01), Delest
patent: 3406682 (1968-10-01), Engstrom
patent: 3434471 (1969-03-01), Liston
patent: 3897041 (1975-07-01), Gowan
patent: 4054133 (1977-10-01), Myers

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