Patents by Inventor Ping-Lung Chang

Ping-Lung Chang 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).

  • Adjusting device for adjusting the instantaneous relative angular difference between two rotating members
    Patent number: 5326321
    Abstract: An adjusting device for adjusting the relative angular difference between two rotating members having a guide arrangement between a driving member and a rotating follower. The guide arrangement will allow the rotating driver to perform relative axial movement relative to the rotating follower to change the relative axial and angular difference between the rotating driver and the rotating follower.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: July 5, 1994
    Inventor: Ping-Lung Chang