Breathing system for high altitude aircraft

Details Breathing system for high altitude aircraft Breathing system for high altitude aircraft

1984-09-28

1987-03-24

Howell, Kyle L.

Surgery

Respiratory method or device

Including body or head supported means covering user's scalp

12820429, 12820525, A62B 1810

Patent

active

046517286

ABSTRACT:
A breathing system (10) is provided for supplying physiologically acceptable breathing gas (oxygen partial pressure greater than that required to prevent hypoxia) to a pilot of an aircraft. The system (10) includes a breathing mask (12) connected to a pressure regulator (14). The pressure regulator (14) is connected to a selector valve (32). Connected to the selector valve (32) is an onboard oxygen generating system (22) and a standby oxygen supply (24). The selector valve (32) selects breathing gas from one of these two sources. Also included in the system is an emergency oxygen bottle (26) connected to the regulator (14). Ambient air is supplied to the mask (12) by an ambient airflow duct (20) if for some reason none of the breathing gas sources (22, 24, 26) provide breathing gas to the regulator (14).

REFERENCES:
patent: 2582848 (1952-01-01), Price
patent: 2824557 (1958-02-01), Mejean et al.
patent: 2877966 (1959-03-01), Summers, Jr.
patent: 3215057 (1965-11-01), Turek
patent: 3410191 (1968-11-01), Jackson
patent: 3425333 (1969-02-01), Wachter
patent: 3500827 (1970-03-01), Paine
patent: 3593735 (1971-07-01), Reiher
patent: 3720501 (1973-03-01), Cramer et al.
patent: 4057205 (1977-11-01), Vensel
patent: 4419926 (1983-12-01), Cronin et al.
patent: 4499914 (1985-02-01), Schebler

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