Patents by Inventor Hsiwng C. Ko

Hsiwng C. Ko 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).

  • Wall rack having a turnable support frame and a plastic bushing in a pivot seat thereof
    Patent number: 5429336
    Abstract: A wall rack includes a wall mounting member and an extensible arm unit which has a first end pivoted to the wall mounting member and a second end formed with a pivot seat. A plastic bushing has a hollow cylindrical portion received tightly in the pivot seat. A support frame is disposed on the pivot seat. A pivot shaft connects the support frame to the plastic bushing and is received in the plastic bushing to permit rotation of the support frame about the axis of the pivot shaft with respect to the pivot seat.
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: July 4, 1995
    Inventor: Hsiwng C. Ko