Patents by Inventor Robert D. Dion

Robert D. Dion 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).

  • Impeller shaft assembly system
    Patent number: 6709234
    Abstract: An impeller shaft assembly, coupler and molten metal pump are described, in which a coupling member is configured to be secured to a pump drive shaft and includes a socket part that is defined by a socket wall formed about and extending along an axis. The socket wall includes a plurality of coupling shaft engaging surfaces and a plurality of socket corner surfaces joining the shaft engaging surfaces. The socket corner surfaces are disposed radially outward from adjacent shaft engaging surfaces with respect to the axis.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: March 23, 2004
    Assignee: Pyrotek, Inc.
    Inventors: Ronald E. Gilbert, Robert D. Dion, Mark A. Palmer, Kristopher M. Ratzlaff, Roger Kauffman, Charles Seale
  • Impeller shaft assembly system
    Publication number: 20030044273
    Abstract: An impeller shaft assembly, coupler and molten metal pump are described, in which a coupling member is configured to be secured to a pump drive shaft and includes a socket part that is defined by a socket wall formed about and extending along an axis. The socket wall includes a plurality of coupling shaft engaging surfaces and a plurality of socket corner surfaces joining the shaft engaging surfaces. The socket corner surfaces are disposed radially outward from adjacent shaft engaging surfaces with respect to the axis.
    Type: Application
    Filed: August 31, 2001
    Publication date: March 6, 2003
    Inventors: Ronald E. Gilbert, Robert D. Dion, Mark A. Palmer, Kristopher M. Ratzlaff, Roger Kauffman, Charles Seale