Alarms for ensuring the safety of persons

Full Title

Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for > Alarms for ensuring the safety of persons

Classification Context

Section:

PHYSICS

Class:

SIGNALLING

Subclass:

SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS

Child Classifications

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• G08B 21/04 responsive to non-activity, e.g. of elderly persons
• G08B 21/06 indicating a condition of sleep, e.g. anti-dozing alarms
• G08B 21/08 responsive to the presence of persons in a body of water, e.g. a swimming pool; responsive to an abnormal condition of a body of water
• G08B 21/1 responsive to calamitous events, e.g. tornados or earthquakes
• G08B 21/12 responsive to undesired emission of substances, e.g. pollution alarms