Electrical appliance with delayed warning alarm

G - Physics – 01 – R

Patent

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324/58

G01R 31/00 (2006.01) G08B 21/20 (2006.01) H02H 1/00 (2006.01) H02H 3/16 (2006.01)

Patent

CA 1210069

-15- Electrical Appliance With Delayed Warning Alarm Abstract In combination with an electrical appliance, an automatic warning circuit to warn a user of an electrical hazard wherein the warning circuit comprises a timing circuit responsive to turn-off of the electrical appliance for generating a triggering signal after lapse of a predetermined time period after turn-off thereby to energize an audible alarm. The timing circuit and alarm are useful for warning a user of the appliance of an electrical safety hazard brought out by the appliance being connected to a power line while not being used.

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