Patents by Inventor Chung-Shan Chi

Chung-Shan Chi 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).

  • Method of printing patterns on powder coated surface
    Patent number: 5820929
    Abstract: A method of printing colorful patterns on a powder-coated surface of an article comprises the following steps. The surface of a frame is coated with a powder-coated layer by powder coating method. The frame is enwrapped by the stencil paper. The stencil paper is made by mimeographing method with printing colors and patterns on the stencil paper. The enwrapped frame is heated at about 120.degree. C. to 180.degree. C. for about 30 seconds to 5 minutes. Thus the colors and patterns on the stencil paper will melt and penetrate the powder-coated surface of the frame. The enwrapped frame is cooled. After the enwrapped frame is completely cool, the stencil paper is stripped from the frame. The colors and patterns on the stencil paper is transferred to the powder-coated surface of the frame.
    Type: Grant
    Filed: September 18, 1995
    Date of Patent: October 13, 1998
    Assignee: Karen Umbrella Industry Ltd. Co.
    Inventor: Chung-Shan Chi