Respirator flow control apparatus and method

A respirator has a shell that defines a breathable air zone for a user wearing the respirator. An air flow control system for the respirator has an air delivery conduit within the shell of the respirator, a valve member moveable relative to the air delivery conduit and within the shell to vary the a...

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Bibliographische Detailangaben
Hauptverfasser: DESMOND T. CURRAN, GARRY J. WALKER, DEREK A. PARKIN, ANDREW MURPHY, MARK A. J. FERNANDES, THOMAS I. INSLEY
Format: Patent
Sprache:eng
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Zusammenfassung:A respirator has a shell that defines a breathable air zone for a user wearing the respirator. An air flow control system for the respirator has an air delivery conduit within the shell of the respirator, a valve member moveable relative to the air delivery conduit and within the shell to vary the amount of air flow through the air delivery conduit, and a valve actuator outside of the shell of the respirator. The valve actuator is manipulatable by a user of the respirator while wearing the respirator to control movement of the valve member.