Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1996-05-13
1998-08-11
Hofsass, Jeffery A.
Communications: electrical
Condition responsive indicating system
Specific condition
340457, 3404255, 340584, 340449, G08B 2300
Patent
active
057932913
ABSTRACT:
The present invention, in one form, is an alarm system for detecting the presence of a person locked in a parked automobile. The alarm system includes a motion detector and a temperature detecting element coupled to a NOR gate. The motion detector transmits a low signal to the NOR gate once it detects motion within the interior of the automobile. The temperature detecting element transmits a low signal to the NOR gate if the temperature in the automobile exceeds a pre-determined extreme temperature. The NOR gate, upon receiving low signals from both the temperature detecting element and the motion detector, transmits an alarm signal.
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Hofsass Jeffery A.
Huang Sihong
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