Patents by Inventor Liao Che-Wei

Liao Che-Wei 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).

  • Water storage tank for flush toilets
    Patent number: 4058858
    Abstract: A water storage tank used in a flush toilet is disclosed wherein a timer is provided on the tank for manually adjusting the flush time to automatically control the volume of water required for flush purpose. And the contact area between a closure member and an outlet tube of the tank is made linear to reduce wearing therebetween and prevent water leakage.
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: November 22, 1977
    Inventor: Liao Che-Wei