Patents by Inventor William Dickie

William Dickie 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).

  • Apparatus for centrifugal separation of coal particles
    Patent number: 5008083
    Abstract: A gravimetric cell for centrifugal separation of fine coal by density has a cylindrical body and a butterfly valve or other apparatus for selectively sealing the body radially across the approximate center of the cylinder. A removable top is provided which seals the cylinder in the centrifuge and in unvented areas.
    Type: Grant
    Filed: August 30, 1988
    Date of Patent: April 16, 1991
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: William Dickie, Joseph A. Cavallaro, Richard P. Killmeyer