Patents by Inventor Ching-Liang Chou

Ching-Liang Chou 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).

  • Faucet having proximity actuation control and hand control that can be interchangeable
    Patent number: 4962790
    Abstract: The present invention provides an improved faucet which has two holes (115), (116) formed on the bottom of a hemispherical valve seat (113) on the same plane, two channels (117), (118) formed on another plane and these two planes cross each other; six holes on a ball valve (14) are separated by two groups, one group of holes (142), (143), (144) respectively match the channel (117) and holes (115), (116); when the ball valve (14) is turned, another group of holes (145), (146), (147) respectively match the channel (118) and holes (115), (116); a holding groove (148) for a holding protrusion (114) to pass through and hold the ball valve (14) in position; an H-shaped guide groove (152) formed on a valve stem guide (15) for a valve stem (141) to pass through and connect with a handle (24); a bi-directional feed pipe with one end connects with a valve outlet hole (124) which open or close is controlled by a solenoid valve (31), with the other end connects with the channel (118); a pipe juncture (134a) formed on the
    Type: Grant
    Filed: August 9, 1989
    Date of Patent: October 16, 1990
    Inventors: Ching-Liang Chou, Kai-lin Hsieh