Patents by Inventor Guan-Chung Chen

Guan-Chung Chen 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).

  • Tank ball assembly for toilet
    Patent number: 7222375
    Abstract: A tank ball assembly is disclosed to include a cover stopper mounted with a gasket for closing the drain port of the tank of a toilet, a tank ball coupled to an upright short tubular flange of the cover stopper and rotatable on the upright short tubular flange to adjust the angular position of the air outlet thereof and to further adjust the flushing amount of tank water, and an adjustment screw fastened to a post at the cover stopper and adjustable to approach to the water inlet of the tank ball and to further adjust the flowing rate of tank water into the tank ball.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: May 29, 2007
    Inventors: Po-Hsin Chen, Guan-Chung Chen
  • Tank ball assembly for toilet
    Publication number: 20060218713
    Abstract: A tank ball assembly is disclosed to include a cover stopper mounted with a gasket for closing the drain port of the tank of a toilet, a tank ball coupled to an upright short tubular flange of the cover stopper and rotatable on the upright short tubular flange to adjust the angular position of the air outlet thereof and to further adjust the flushing amount of tank water, and an adjustment screw fastened to a post at the cover stopper and adjustable to approach to the water inlet of the tank ball and to further adjust the flowing rate of tank water into the tank ball.
    Type: Application
    Filed: April 5, 2005
    Publication date: October 5, 2006
    Inventors: Po-Hsin Chen, Guan-Chung Chen