Patents by Inventor Chen-Kuang Cheng

Chen-Kuang 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).

  • Tire automatic pneumatic pump device
    Patent number: 5342177
    Abstract: An automotive bicycle tire pump is disclosed in which a cylinder and piston assembly rotates with the wheel rim and tire. The piston is reciprocated by contact with a stationary cam to provide pressurized air to the tire. When the proper tire pressure is reached, the piston is automatically latched in a position out of contact with the cam to prevent reciprocation of the piston.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: August 30, 1994
    Inventor: Chen-Kuang Cheng
  • Toothbrush with toothpaste dispenser
    Patent number: D437118
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: February 6, 2001
    Inventor: Chen-Kuang Cheng