Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Reexamination Certificate
2007-08-14
2011-12-06
Yu, Justine (Department: 3771)
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
C128S204210, C128S204220, C128S204260, C128S205240, C128S205250
Reexamination Certificate
active
08069853
ABSTRACT:
A system for regulating the airflow to a closed environment using feedback control for the position of a control valve and blower speed. The system provides a control apparatus that regulates airflow to a closed environment, such as the mask of a breathing apparatus, to ensure sufficient breathing air for a wearer of such mask. In order to provide fast response to a change in condition in the breathable environment, the airflow regulator includes a valve control and a blower control.
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Duane Morris LLP
Immediate Response Technologies
Ostrup Clinton T
Yu Justine
LandOfFree
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