Patents by Inventor Brad J. Murphy

Brad J. Murphy 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).

  • Single crystal seed
    Patent number: 7810547
    Abstract: A single crystal seed for use in casting a single crystal article, consisting essentially of, in weight %, about 5.0% to about 40.0% Mo, up to 0.1% C and balance essentially Ni wherein the seed is disposed in a casting mold for casting a single crystal article.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: October 12, 2010
    Assignee: Howmet Research Corporation
    Inventors: Steven T. Schaadt, Brad J. Murphy, Lisa K. Koivisto
  • Single crystal seed
    Publication number: 20100058977
    Abstract: A single crystal seed for use in casting a single crystal article, consisting essentially of, in weight %, about 5.0% to about 40.0% Mo, up to 0.1% C and balance essentially Ni.
    Type: Application
    Filed: July 20, 2009
    Publication date: March 11, 2010
    Inventors: Steven T. Schaadt, Brad J. Murphy, Lisa K. Koivisto
  • Single crystal seed
    Patent number: 7575038
    Abstract: A single crystal seed for use in casting a single crystal article, consisting essentially of, in weight %, about 5.0% to about 40.0% Mo, up to 0.1% C and balance essentially Ni.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: August 18, 2009
    Assignee: Howmet Research Corporation
    Inventors: Steven T. Schaadt, Brad J. Murphy, Lisa K. Koivisto
  • Investment casting with improved melt filling
    Patent number: 6640877
    Abstract: Molten metallic material is cast into a mold that is made with a barrier to reduce gas permeability through a mold wall that forms on its innermost side a mold surface for contacting the molten metallic material. The molten metallic material is gravity cast into the mold residing in a furnace in a casting chamber under a first pressure, such as subambient pressure. Then, a gaseous pressure is provided in the casting chamber higher than the first pressure rapidly enough to reduce or eliminate the presence of localized voids in the casting solidified in the mold.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: November 4, 2003
    Assignee: Howmet Research Corporation
    Inventors: Mark L. Soderstrom, Bart M. Kilinski, John R. Brinegar, Brad J. Murphy
  • Investment casting with improved melt filling
    Publication number: 20030024681
    Abstract: Molten metallic material is cast into a mold that is made with a barrier to reduce gas permeability through a mold wall that forms on its innermost side a mold surface for contacting the molten metallic material. The molten metallic material is gravity cast into the mold residing in a furnace in a casting chamber under a first pressure, such as subambient pressure. Then, a gaseous pressure is provided in the casting chamber higher than the first pressure rapidly enough to reduce or eliminate the presence of localized voids in the casting solidified in the mold.
    Type: Application
    Filed: June 27, 2002
    Publication date: February 6, 2003
    Inventors: Mark L. Soderstrom, Bart M. Kilinski, John R. Brinegar, Brad J. Murphy
  • Single crystal seed
    Publication number: 20020185247
    Abstract: A single crystal seed for use in casting a single crystal article, consisting essentially of, in weight %, about 5.0% to about 40.0% Mo, up to 0.1% C and balance essentially Ni.
    Type: Application
    Filed: June 11, 2001
    Publication date: December 12, 2002
    Inventors: Steven T. Schaadt, Brad J. Murphy, Lisa K. Koivisto