Patents by Inventor David H. S. Cheng

David H. S. Cheng 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).

  • Pipeline transportation system
    Patent number: 4437799
    Abstract: A hydraulic capsule pipelining system including a pipeline adapted for flow therethrough of water or other carrier liquid to propel cargo-containing capsules through the pipeline, and means for pumping the liquid through the pipeline utilizing a segment of length of the pipeline as a pump cyclinder and utilizing capsules passing through said pump cylinder segment of the pipeline as pistons in said segment for pumping the liquid forward through the pipeline, capsules being propelled through said segment by an externally produced electromagnetic field.
    Type: Grant
    Filed: June 25, 1979
    Date of Patent: March 20, 1984
    Assignee: The Curators of the University of Missouri
    Inventors: Henry Liu, Donald L. Gibson, David H. S. Cheng, James E. Rathke