Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1981-01-27
1984-04-03
Recla, Henry J.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820213, 12820517, A62B 700
Patent
active
044401647
ABSTRACT:
A life support system is provided for users located within enclosed areas to supply them with fresh air from a location exterior of the enclosed area, and is particularly adapted for use in emergency circumstances such as when fire and smoke fill enclosed areas. The system can be used in buildings and in aircraft and can be adapted for use with the gasper outlets presently employed on aircraft. A method for providing fresh exterior air to the enclosed area and the user includes conducting the air to an outlet for the exterior air which is located within the area, conducting the exterior air from the outlet to at least one breathing cavity of the user, and preventing the user from inhaling ambient atmosphere from within the enclosed area.
REFERENCES:
patent: 642166 (1900-01-01), Sherman
patent: 879391 (1908-02-01), Leonard
patent: 909979 (1909-01-01), Zerkle
patent: 1007644 (1911-10-01), Cocke
patent: 1129619 (1915-02-01), Zapf
patent: 2058659 (1936-10-01), Bellanca
patent: 4320756 (1982-03-01), Holmes
Fire . . . an Advertisement for Vivat, (apparently 1982).
A Protective Passenger Smoke Hood-A Publication of the Federal Aviation Administration-AM 67-4-Apr. 1967.
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