Patents by Inventor Dong Gu Wen

Dong Gu Wen 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).

  • HIGH CURRENT SWITCH WITH THREE-STATE ILLUMINATED KNOB
    Publication number: 20230392775
    Abstract: A high-current switch for circuits above 25 amperes having an extended rotary knob supporting a PCB safely distant from the heat source of the high-current being switched. The PCB carries LEDs, a voltage meter, and a microprocessor to control LEDs OFF when the rotary knob is in the OFF position, ON when the rotary knob is in the ON position, and flashing when the switch circuit voltage falls below a predetermined value. Various colors of LEDs may be used, with a difference between the flashing color and the ON color. The PCB is covered by a windowed cover at the top of the knob.
    Type: Application
    Filed: June 2, 2022
    Publication date: December 7, 2023
    Inventors: Larry Vansickel, Hai Wang, Dong Yang, Dong Gu Wen