Patents by Inventor Leang S. Chen

Leang S. 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).

  • Tide-operated driving system
    Patent number: 5575587
    Abstract: A tide-operated driving system including a variable air chamber having a broad bottom opening put under the water of the sea and a small top opening disposed above the seaside, and a motor having a center shaft and a plurality of centrifugal type vanes spaced around the center shaft, wherein the movement of the tide induces a reciprocating flow of air to rotate the vanes, causing the center shaft to turn an external mechanism.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: November 19, 1996
    Inventor: Leang S. Chen