Patents by Inventor H. Robert Baumgartner

H. Robert Baumgartner 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).

  • Monolithic metal matrix composite
    Patent number: 5746267
    Abstract: Metal matrix composites are manufactured in a vacuum die casting machine. Solid aggregate material is placed in a die, the die is evacuated, and molten metal is driven by a piston to infiltrate the solid aggregate material where it subsequently solidifies to form a metal matrix composite.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: May 5, 1998
    Assignee: Aluminum Company of America
    Inventors: David I. Yun, Ralph R. Sawtell, Warren H. Hunt, H. Robert Baumgartner, Eric T. Streicher, Michael F. Ehman
  • Fabrication of metal matrix composites by vacuum die casting
    Patent number: 5259436
    Abstract: Metal matrix composites are manufactured in a vacuum die casting machine. Solid aggregate material, at least 65 volume percent, is placed in a die, the die is evacuated and heated, and molten metal is driven by a piston to infiltrate the solid aggregate material where it subsequently solidifies to form a metal matrix composite.
    Type: Grant
    Filed: April 8, 1991
    Date of Patent: November 9, 1993
    Assignee: Aluminum Company of America
    Inventors: David I. Yun, Ralph R. Sawtell, Warren H. Hunt, H. Robert Baumgartner, Eric T. Streicher, Michael F. Ehman