Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1997-08-06
1999-08-31
Leung, Philip H.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219518, H05B 368, H05B 102
Patent
active
059450177
ABSTRACT:
Most residential fires originated in the kitchen areas and were the results of negligence during cooking. As the least regulated cooking appliance in a kitchen, stove-top burners were often the culprits. Burners were left on without user presence and caused utensil melt down, igniting fire. It is the objective of this invention to minimize such risks. An electric or gas burner can be improved by the installation of an automated fire safety device that first determines whether the burner is being attended to and if not, senses the temperature of the cooking utensil on it and automatically shuts off the flow of electricity or gas to the burner when the temperature of the cooking utensil begins to exceed a predetermined temperature range.
A motion detector is integrated into the safety device and serves as the front-end to a temperature sensor switch. The switch is designed to trigger a power shut-off mechanism when high utensil temperature is encountered. The mechanism will be deactivated if motion is detected within a set periphery of the stove appliance. It will automatically be reactivated a set time later after no motion is detected. This invention will not interfere with normal cooking procedures while drastically reducing the possibility of kitchen fires due to cooking.
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Cheng Lily I
Cheng Yu-tarng
Leung Philip H.
Paik Sam
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