B - Operations – Transporting – 60 – Q
Patent
B - Operations, Transporting
60
Q
B60Q 9/00 (2006.01) F02N 19/10 (2010.01) F02N 15/10 (2006.01) G08B 21/00 (2006.01)
Patent
CA 2311990
An alarm system, for warning an operator of a motor vehicle of an energized block heater condition when an engine is starting, has a housing, a wiring circuit for connection to a warning device and to a power source, and a proximity detector mounted inside the housing and being connected to the circuit for detecting a condition in a block heater cord of a motor vehicle. There is also provided a switch incorporated in or with the proximity detector for operating the warning device upon detecting a condition in the block heater cord. The alarm system also has a hook, a clip or similar arrangement affixed to the housing for holding a block heater cord near the proximity detector. The proximity detector is either a vibration sensor switch for detecting light shivering movements in the block heater cord upon starting of an engine, or a power detector to detect voltage or current in the block heater cord.
Caissie Laurent
P. Eng. Theriault Mario D.
LandOfFree
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