Patents by Inventor Stephen Donachie

Stephen Donachie 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).

  • Formation of intermetallic and intermetallic-type precursor alloys for subsequent mechanical alloying applications
    Patent number: 4668470
    Abstract: A method for forming intermetallic and intermetallic-type precursor alloys for subsequent mechanical alloying applications. Elemental powders are blended in proportions approximately equal to their respective intermetallic compounds. Heating of the blend results in the formation of intermetallic compounds whereas lack of heating results in intermetallic-type powder without the intermetallic structure. The resultant powder is then blended to form a final alloy. Examples involving aluminum-titanium alloys are discussed.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: May 26, 1987
    Assignee: Inco Alloys International, Inc.
    Inventors: Paul S. Gilman, Arun D. Jatkar, Stephen Donachie, Winfred L. Woodard, III, Walter E. Mattson