Patents by Inventor Yu-tarng Cheng

Yu-tarng Cheng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5945017
    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.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: August 31, 1999
    Inventors: Yu-tarng Cheng, Lily I Cheng