Patents by Inventor Edward L. Oschmann

Edward L. Oschmann 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).

  • Extrusion fabrication process for discontinuous carbide particulate metal matrix composites and super hypereutectic A1/Si
    Patent number: 6042779
    Abstract: The invention relates to a method for forming high performance metal alloys using powder metallurgy. Alloys are extruded under controlled temperature conditions through an extrusion die containing non-metal bearing inserts. This allows the extrusion of hypereutectic alloys without excessive wear of the extrusion die.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: March 28, 2000
    Assignee: Reynolds Metals Company
    Inventors: Edward L. Oschmann, Thomas G. Haynes
  • Radiation absorbing refractory composition
    Patent number: 5965829
    Abstract: An extruded metal matrix composite incorporates boron carbide in fine particulate form. The composition is useful as a radiation shield.
    Type: Grant
    Filed: April 14, 1998
    Date of Patent: October 12, 1999
    Assignee: Reynolds Metals Company
    Inventors: Thomas G. Haynes, Kevin Anderson, Edward L. Oschmann