Respirator Flow Control Apparatus And Method

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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Curran, Desmond T, Parkin, Derek A, Murphy, Andrew, Walker, Garry J, Fernandes, Mark A.J, Insley, Thomas I
Format: Patent
Sprache:eng
Schlagworte:
DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
FIRE-FIGHTING
HATS
HEAD COVERINGS
HEADWEAR
HUMAN NECESSITIES
LIFE-SAVING
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Beschreibung
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.