Patents by Inventor Tsai Shang-Lu

Tsai Shang-Lu 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: 5458249
    Abstract: A hanging device for drying clothes including a base, a main rod vertically arranged on the base, a plurality of tubular members fixedly mounted on the main rod, a plurality of gears each fixedly connected with one of the tubular members, a plurality of sleeves each connected with one of the tubular members and having an upper flange, a plurality of cables having an end connected with the upper flange of the sleeves, a hexagonal frame connected with another end of the cables, a plurality of supporting rods pivotally connected with the gear, and a plurality of connectors each connected with a side of the hexagonal frame and one of the supporting rods.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: October 17, 1995
    Inventor: Tsai Shang-Lu