Patent ID: 8312880
Filing Date: 2012-11-20
Classification: A62B

Abstract:
1. An adaptable demand dilution oxygen regulator for use inside a pressurized aircraft cabin, comprising: an oxygen initiation and demand regulation system adapted to be responsive to differential gas pressure in a first altitude range based on a pulmonary capacity of a person flying in the pressurized aircraft cabin, wherein the oxygen initiation and demand regulation system controls flow of pressurized oxygen to a breathing outlet by mixing the pressurized oxygen with aircraft cabin air during the first altitude range; and a cabin air dilution and delivery system coupled to the oxygen initiation and demand regulation system, wherein the cabin air dilution and delivery system is adapted to be responsive to differential gas pressure in a second altitude range, and wherein the cabin air dilution and delivery system gradually stops dilution of the aircraft cabin air and outputs about 100% pressurized oxygen into a breathing apparatus via the breathing outlet during the second altitude range, and wherein the first altitude range and the second altitude range are substantially below a cabin pressure altitude of about 7000 feet, and wherein the first altitude range is lower than the second altitude range.