Patents by Inventor Harry A. Matrone

Harry A. Matrone 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).

  • Camshaft
    Patent number: 5028281
    Abstract: An austempered ductile iron alloy with a mixed austenitic-bainitic structure is made by a method which enables the iron to withstand high cyclical stresses while having a high resistance to abrasion. Articles such as automobile roller-follower camshafts that are made from the iron alloy may have portions thereof selectively austempered to reduce the overall cost and time required to manufacture the article.
    Type: Grant
    Filed: September 12, 1989
    Date of Patent: July 2, 1991
    Assignee: Textron, Inc.
    Inventors: William J. Hayes, Harry A. Matrone, Philip D. Johnson
  • Process of making an austempered ductile iron article
    Patent number: 4880477
    Abstract: An austempered ductile iron alloy with a mixed austenitic-bainitic structure is made by a method which enables the iron to withstand high cyclical stresses while having a high resistance to abrasion. Articles such as automobile roller-follower camshafts that are made from the iron alloy may have portions thereof selectively austempered to reduce the overall cost and time required to manufacture the article.
    Type: Grant
    Filed: June 14, 1988
    Date of Patent: November 14, 1989
    Assignee: Textron, Inc.
    Inventors: William J. Hayes, Harry A. Matrone, Philip D. Johnson