Patents by Inventor Lin-chang Zon

Lin-chang Zon 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).

  • Patent number: 5085239
    Abstract: An umbrella, having a cover stretched over a plastic folding radial frame which comprises upper, intermediate and lower nest plates respectively mounted on a main shaft for securing a plurality of ribs. The nest plates are identical in structure, each comprised an upper circular member having a plurality of pawls and retaining holes at the bottom respectively engaged with a plurality of retaining holes and pawls on the top of a lower circular member for securing the ribs. The cover comprises a plurality of fastening caps at the corners around its periphery and a plurality of snap fastening elements on each radial line thereof for securing the ribs. Because all the parts are made of plastic material, the umbrella is not electrically conductive and can protect against lightning.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: February 4, 1992
    Inventors: Teng Chin-Hung, Lin-chang Zon, Frank Yu