ALARM DEVICE

ALARM DEVICE

PROBLEM TO BE SOLVED: To suppress degradation of detection accuracy in gas to be detected by guaranteeing air permeability through surrounding atmosphere of an alarm device.SOLUTION: An alarm device comprises: a case body 10 constituting a housing; a vent hole which penetrates the inside and outside...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: KODAMA SANSHIRO, TAKASHIMA HIROMASA
Format: Patent
Sprache:eng
Schlagworte:
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To suppress degradation of detection accuracy in gas to be detected by guaranteeing air permeability through surrounding atmosphere of an alarm device.SOLUTION: An alarm device comprises: a case body 10 constituting a housing; a vent hole which penetrates the inside and outside of the case body 10 and where surrounding atmosphere of the case body 10 is flowed into a sensor chamber. The vent holes 13a are separately formed on more than two surfaces 10b-10e which constitute the case body 10.