Patents by Inventor Michael A. Dunkle

Michael A. Dunkle 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).

  • Method for assembling a two-piece punch into a tool
    Patent number: 8042247
    Abstract: A tool for use in a powder metal process is disclosed. The tool includes an upper tool and a lower tool. The upper and lower tools may include multiple members for each tool. The lower tool having a predetermined cross sectional profile that continuously expands outward from or near a center point of the lower tool. The lower tool is also secured within a press for the powder metal process via a fastening mechanism.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: October 25, 2011
    Assignee: GKN Sinter Metals, Inc.
    Inventors: Michael A. Dunkle, Jude D. Schlimm
  • Powdered metal process tooling and method of assembly
    Publication number: 20100299901
    Abstract: A tool for use in a powder metal process is disclosed. The tool includes an upper tool and a lower tool. The upper and lower tools may include multiple members for each tool. The lower tool having a predetermined cross sectional profile that continuously expands outward from or near a center point of the lower tool. The lower tool is also secured within a press for the powder metal process via a fastening mechanism.
    Type: Application
    Filed: June 11, 2008
    Publication date: December 2, 2010
    Inventors: Michael A. Dunkle, Jude D. Schlimm
  • Powdered metal process tooling and method of assembly
    Patent number: 7393194
    Abstract: A tool for use in a powder metal process is disclosed. The tool includes an upper tool and a lower tool. The upper and lower tools may include multiple members for each tool. The lower tool having a predetermined cross sectional profile that continuously expands outward from or near a center point of the lower tool. The lower tool is also secured within a press for the powder metal process via a fastening mechanism.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: July 1, 2008
    Assignee: GKN Sinter Metals, Inc.
    Inventors: Michael A. Dunkle, Jude D. Schlimm