Patents by Inventor Bruce Lindsley

Bruce 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).

  • Patent number: 10351938
    Abstract: Iron-based metallurgical powders comprising vanadium are described, as well as compacted articles made thereof. These articles have improved mechanical properties.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: July 16, 2019
    Assignee: Hoeganaes Corporation
    Inventors: Christopher T. Schade, Bruce Lindsley, Thomas F. Murphy, Wing-Hong Chen
  • Publication number: 20160215374
    Abstract: Iron-based metallurgical powders comprising vanadium are described, as well as compacted articles made thereof. These articles have improved mechanical properties.
    Type: Application
    Filed: April 6, 2016
    Publication date: July 28, 2016
    Inventors: Christopher T. Schade, Bruce Lindsley, Thomas F. Murphy, Wing-Hong Chen
  • Patent number: 9340855
    Abstract: Iron-based metallurgical powders comprising vanadium are described, as well as compacted articles made thereof These articles have improved mechanical properties.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: May 17, 2016
    Assignee: Hoeganaes Corporation
    Inventors: Christopher T. Schade, Bruce Lindsley, Thomas Murphy, Wing-Hong Chen
  • Patent number: 9297055
    Abstract: Iron-based powder metallurgical compositions including both iron-copper prealloy and copper powder are described. These compositions, when compacted and sintered, result in compacts having good dimensional consistency.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: March 29, 2016
    Assignee: Hoeganaes Corporation
    Inventor: Bruce Lindsley
  • Publication number: 20120255398
    Abstract: Iron-based metallurgical powders comprising vanadium are described, as well as compacted articles made thereof These articles have improved mechanical properties.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 11, 2012
    Applicant: HOEGANAES CORPORATION
    Inventors: Christopher T. Schade, Bruce Lindsley, Thomas Murphy, Wing-Hong Chen
  • Publication number: 20110283832
    Abstract: Iron-based powder metallurgical compositions including both iron-copper prealloy and copper powder are described. These compositions, when compacted and sintered, result in compacts having good dimensional consistency.
    Type: Application
    Filed: May 17, 2011
    Publication date: November 24, 2011
    Applicant: HOEGANAES CORPORATION
    Inventor: Bruce Lindsley
  • Publication number: 20070065328
    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: Application
    Filed: November 10, 2006
    Publication date: March 22, 2007
    Applicant: Hoeganaes Corporation
    Inventors: Bruce Lindsley, Patrick King, Christopher Schade
  • Patent number: 7153339
    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: April 6, 2004
    Date of Patent: December 26, 2006
    Assignee: Hoeganaes Corporation
    Inventors: Bruce Lindsley, Patrick King, Christopher T. Schade
  • Publication number: 20050220657
    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: Application
    Filed: April 6, 2004
    Publication date: October 6, 2005
    Inventors: Bruce Lindsley, Patrick King, Christopher Schade