Patents by Inventor Melvin A. Schobert

Melvin A. Schobert 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).

  • Method for making a titanium metal matrix composite
    Patent number: 5511604
    Abstract: A cast article having a reinforced structural composite core is disclosed. The cast article includes a structural element which is embedded in the otherwise cast metal article. The structural element is comprised of a metal matrix composite structural core. It includes a plurality of reinforcing fibers within a metal matrix. The fibers are generally a non-metallic material such as a ceramic which degrade at a temperature below the melting temperature of the cast metal comprising the article. The metal matrix composite structural core is encased with a sheath. The sheath, attached to and completely surrounding the core, is made of the same metal as the cast metal article. In a preferred embodiment, the article is a titanium alloy strut for a gas turbine engine.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: April 30, 1996
    Assignee: General Electric Company
    Inventors: Richard Ravenhall, Charles R. Wojciechowski, Stephen C. Mitchell, Gary D. Mercer, Thomas J. Kelly, Melvin A. Schobert, Harvey M. Maclin
  • Titanium metal matrix composite inserts for stiffening turbine engine components
    Patent number: 5439750
    Abstract: A cast article having a reinforced structural composite core is disclosed. The cast article includes a structural element which is embedded in the otherwise cast metal article. The structural element is comprised of a metal matrix composite structural core. It includes a plurality of reinforcing fibers within a metal matrix. The fibers are generally a non-metallic material such as a ceramic which degrade at a temperature below the melting temperature of the cast metal comprising the article. The metal matrix composite structural core is encased with a sheath. The sheath, attached to and completely surrounding the core, is made of the same metal as the cast metal article. In a preferred embodiment, the article is a titanium alloy strut for a gas turbine engine.
    Type: Grant
    Filed: June 15, 1993
    Date of Patent: August 8, 1995
    Assignee: General Electric Company
    Inventors: Richard Ravenhall, Charles R. Wojciechowski, Stephen C. Mitchell, Gary D. Mercer, Thomas J. Kelly, Melvin A. Schobert, Harvey M. Maclin