Patents by Inventor Bruce T. Lindsley

Bruce T. Lindsley 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).

  • Powder metallurgical compositions and methods for making the same
    Patent number: 7527667
    Abstract: Metallurgical powder compositions of the present invention include an iron based powder combined with a master alloy powder, as a mechanical property enhancing powder. The addition of master alloy powders has been found to enhance the mechanical properties of the final, sintered, compacted parts made from metallurgical powder compositions, especially at low sintering temperatures. Metallurgical powder compositions include at least about 80 weight percent of an iron-based metallurgical powder and from about 0.10 to about 20 weight percent of a master alloy powder. Master alloy powders include iron and from about 1.0 to about 40 weight percent chromium, and from about 1.0 to about 35 weight percent silicon, based on the weight of the master alloy powder.
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: May 5, 2009
    Assignee: Hoeganaes Corporation
    Inventors: Bruce T. Lindsley, Patrick King, Christopher Schade