Patents by Inventor Huo-Lien Chuang

Huo-Lien Chuang 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).

  • Combination foot and hand operated faucet attachment
    Patent number: 5297774
    Abstract: A foot-operated faucet including a foot-compressed bulb which can be compressed by foot to create and transfer air pressure through a hose onto a membrane in a valve body mounted on a general faucet, whereby the membrane can be expanded to push a ball plug away, permitting the water to flow out, and when the bulb is released, the air pressure is eliminated and the faucet is shut off, a rotary switch being disposed on the valve body and connected with a lever, whereby when the switch is rotated, the lever moves the ball plug away, permitting the water to continuously flow out.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: March 29, 1994
    Inventor: Huo-Lien Chuang