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...

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Bibliographische Detailangaben
Hauptverfasser: WALKER, GARRY J, MURPHY, ANDREW, PARKIN, DEREK A, FERNANDES, MARK A. J, CURRAN, DESMOND T, INSLEY, THOMAS I
Format: Patent
Sprache:eng ; pol
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.