POSITIVE PRESSURE EXHALE VALVE FOR A BREATHING APPARATUS

POSITIVE PRESSURE EXHALE VALVE FOR A BREATHING APPARATUS

[Disclosure of the Invention] A positive pressure exhale valve for a breathing apparatus that opens when internal pressure of a face piece of the breathing apparatus reaches predetermined positive level, comprising a valve body, a first spring for always contacting the valve body so as to force the...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Ide, Hiroyuki, Ono, Kenichi, Saitou, Wataru
Format: Patent
Sprache:eng
Schlagworte:
DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
FIRE-FIGHTING
HUMAN NECESSITIES
LIFE-SAVING
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Beschreibung
Zusammenfassung:[Disclosure of the Invention] A positive pressure exhale valve for a breathing apparatus that opens when internal pressure of a face piece of the breathing apparatus reaches predetermined positive level, comprising a valve body, a first spring for always contacting the valve body so as to force the valve body in closing direction, and a braking body for opposing the valve body across a gap and contacting the valve body when a vibration body formed by the valve body and first spring experiences self-excited vibration, thereby suppressing the self-excited vibration.