US 12,329,997 B2
Apparatus, system, and method for pressure altitude-compensating breath-controlled oxygen release
Jon A. Feroy, Edgewood, WA (US); Frederick Paul Siebert, North Bend, WA (US); Emad Said Kiriakos, Bothell, WA (US); Douglas L. Dohrman, Snohomish, WA (US); Steven P. McDonald, Marysville, WA (US); Raydel Cortina, Hialeah, FL (US); and Timothy R. Randall, Seattle, WA (US)
Assigned to THE BOEING COMPANY, Arlington, VA (US)
Filed by The Boeing Company, Chicago, IL (US)
Filed on Mar. 26, 2020, as Appl. No. 16/830,861.
Prior Publication US 2021/0299483 A1, Sep. 30, 2021
Int. Cl. A62B 7/02 (2006.01); A62B 7/14 (2006.01); A62B 9/00 (2006.01); B64D 11/00 (2006.01)
CPC A62B 7/02 (2013.01) [A62B 7/14 (2013.01); A62B 9/00 (2013.01); B64D 11/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for mechanically dispensing an individualized and personalized oxygen bolus to an individual user within an aircraft, said system comprising:
an oxygen source;
a mechanical oxygen supply initiator, said mechanical oxygen supply initiator in communication with the oxygen source;
a manifold, said manifold comprising a manifold outlet;
a regulator, said regulator located upstream of the manifold, said regulator in communication with the mechanical oxygen supply initiator, said regulator configured to reduce an oxygen release pressure from the oxygen source from about 3000 psi to about 25 psi;
an oxygen control unit, said oxygen control unit in direct communication with the manifold outlet, said oxygen control unit comprising:
an orifice metering device, said orifice metering device configured to determine an ambient pressure at the location of the individual user, and the orifice metering device further configured to produce a conserved oxygen flow in response to the ambient pressure of the location of the individual user;
an oxygen dosing chamber in communication with the manifold outlet, said oxygen dosing chamber configured to receive oxygen from the manifold, said oxygen dosing chamber further configured to deliver the individualized and personalized oxygen bolus from the oxygen dosing chamber to the individual user;
a breath volume sensor, said breath volume sensor in communication with the orifice metering device, said breath volume sensor configured to sense an individual user breath volume demand of the individual user, said breath volume sensor further configured to generate and send a signal to a time delay circuit of the oxygen control unit, said signal generated and sent to the time delay circuit in response to the individual user breath volume demand, said time delay circuit configured to adjust a release of oxygen flow out from the oxygen dosing chamber in response to the sensed individual user breath volume demand of the individual user;
wherein the orifice metering device is positioned downstream from the breath volume sensor, and the breath volume sensor is located downstream from the oxygen dosing chamber;
an oxygen delivery device in communication with the orifice metering device, said oxygen delivery device further in communication with the breath volume sensor, said oxygen delivery device further in communication with the oxygen dosing chamber, said oxygen delivery device configured to receive the individualized and personalized oxygen bolus from the oxygen control unit;
wherein said system for mechanically dispensing the individualized and personalized oxygen bolus to the individual user is configured to operate without electrical assistance and is further configured to operate independently from an aircraft electrical system of the aircraft;
wherein said regulator is located upstream of and discrete from the oxygen control unit; and
wherein the oxygen dosing chamber is configured to mechanically release to the orifice metering device the oxygen delivered from the outlet of the manifold and received into said oxygen control unit, said individualized and personalized oxygen bolus further configured to be delivered from the oxygen dosing chamber to the individual user via said orifice metering device, said individualized and personalized oxygen bolus further based in combination on the individual user breath volume demand of the individual user and the determined ambient pressure of the location of the individual user.