Patents by Inventor Tsai-Lie Chen

Tsai-Lie Chen 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: 5449189
    Abstract: A bicycle with a delayed-return suspension fork with two shock-absorbing units. Each shock-absorbing unit has an upper tube assembly telescopically received in a lower tube assembly with an inner tube assembly slidably retained within the lower tube assembly. An elongate cylinder extends upwardly from a base of the lower tube assembly. An elongate piston extends downwardly from a top of the upper tube assembly and is slidingly received in a distal end of the elongate cylinder. A series of resilient tubular cushions are mounted about the elongate piston. The inner tube assembly defines a chamber in order to contain a fluid. A conduit, a washer, a spring and a positioning seat are contained. When the upper tube assembly travels into the lower tube assembly, fluid is urged through the conduit, the fluid further urges the washer, spring and positioning seat away from the conduit permitting rapid passage of the fluid.
    Type: Grant
    Filed: August 30, 1994
    Date of Patent: September 12, 1995
    Inventor: Tsai-Lie Chen
  • Patent number: D372283
    Type: Grant
    Filed: June 26, 1995
    Date of Patent: July 30, 1996
    Inventor: Tsai-lie Chen
  • Patent number: D401644
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: November 24, 1998
    Inventor: Tsai-Lie Chen