Patents by Inventor Marshall W. Stark

Marshall W. Stark 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).

  • Liquid surface skimmer apparatus for molten lithium and method
    Patent number: 5417815
    Abstract: This invention relates to an apparatus for separating two fluids having different specific gravities. The invention also relates to a method for using the separating apparatus of the present invention. This invention particularly relates to the skimming of molten lithium metal from the surface of a fused salt electrolyte in the electrolytic production of lithium metal from a mixed fused salt.
    Type: Grant
    Filed: February 7, 1994
    Date of Patent: May 23, 1995
    Assignee: Martin Marietta Energy Systems, Inc.
    Inventors: Samuel C. Robinson, Roy E. Pollard, William F. Thompson, Marshall W. Stark, Robert T. Currin, Jr.