Patents by Inventor Bor-Lin Su

Bor-Lin Su 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).

  • Sprocket mechanism for a multistage bicycle
    Patent number: 5545096
    Abstract: A sprocket mechanism is provided. The sprocket mechanism includes two or more sprockets each having two groups of teeth formed in the peripheral portion and having another tooth formed between the two groups of teeth. The tooth disposed between the two groups of teeth has a smaller height than the other teeth, and has a straight and tapered surface for facilitating the shifting of the driving chain between the sprockets. The teeth of one of the groups of teeth each includes a pair of diagonal areas, each diagonal area having a tapered cutout portion for preventing the driving chain from shifting between the teeth of that group on each of the sprockets.
    Type: Grant
    Filed: August 29, 1995
    Date of Patent: August 13, 1996
    Inventor: Bor-Lin Su