Patents by Inventor Po-Ling Yuen

Po-Ling Yuen 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: 5197175
    Abstract: A bead stringing device to enable an individual quickly to asssemble a large quantity of beads on a wire or string comprises an assembly of a pedestal base which supports a rotatable bowl. The bowl includes a bottom panel and a circumferential side wall that is curved to form a convex cross-section. A mandrel is disposed coaxially with the side wall and extends upwardly from the bottom panel, and a knob extends upwardly from the mandrel through the open upper end of the bowl. A socket is formed in the bottom panel coaxially with the side wall and the mandrel, and is dimensioned to receive a shaft extending upwardly from the pedestal base. The knob is provided so that an individual may grasp the knob and spin the bowl about the shaft of the pedestal base. A hook-like wire is adapted to be extended into the open upper end of the bowl adjacent to the side wall thereof.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: March 30, 1993
    Inventor: Po-Ling Yuen