Fluid handling – Ambient condition change responsive – Atmospheric
Reexamination Certificate
2006-07-20
2009-10-20
Rivell, John (Department: 3753)
Fluid handling
Ambient condition change responsive
Atmospheric
C137S601130, C128S204290, C128S205240
Reexamination Certificate
active
07604019
ABSTRACT:
The electromechanical regulator for passenger oxygen is a hybrid oxygen regulator that provides for electronic or mechanical regulation of oxygen flow. The electronic portion of the regulator consists of an inlet solenoid valve, an outlet solenoid valve, a cabin pressure transducer, a regulated output transducer and a PID based controller, and the solenoid valves are normally biased so that in the event of an electronic system failure or a power supply failure the system will automatically revert to mechanical operation.
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B/E Intellectual Property
Fulwider Patton LLP
Rivell John
Schneider Craig M
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