Patents by Inventor Wang Yu-Chin

Wang Yu-Chin 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).

  • Structure of temperature-sensing tube for aquarium
    Patent number: 6504998
    Abstract: An improved temperature-sensing tube for an aquarium, includes a temperature-sensing tube, one end of a temperature sensitive switch made from two metal sheets if welded to a heat-sinking piece, the main body of the heat-sinking piece is formed coincident with the shape of and is completely kept close to the inner wall of the outer pipe. Abnormal temperature generated by the running of related members in the electric circuit board is transmitted to the heat sink. Thus, the whole temperature-sensing device can be more accurate and reliable with more economical cost.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: January 7, 2003
    Assignee: Eike Electric Products Corp.
    Inventor: Wang Yu-Chin
  • Submersible pump
    Patent number: D436361
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: January 16, 2001
    Assignee: Eiko Electric Products Corporation
    Inventor: Wang Yu-Chin
  • Submersible pump
    Patent number: D436362
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: January 16, 2001
    Assignee: Eiko Electric Products Corporation
    Inventor: Wang Yu-Chin