Patents by Inventor Dwight F. Warren

Dwight F. Warren 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).

  • Sample mounting press
    Patent number: 7404707
    Abstract: A hydraulic sample mounting press utilizes a face seal against the top face of a molding cylinder. The face seal employs a hydraulic cylinder to press a disk-shaped surface of a cap piece against the top annular face of the mold cylinder for a metallographic mounting press. The face seal cylinder is mounted to a hydraulic fluid column that allows the face seal to rotate away from the mold cylinder for access to the molding cylinder and to rotate into place when a metallographic mount is to be molded.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: July 29, 2008
    Assignee: Leco Corporation
    Inventors: Dwight F. Warren, Robert S. Tate, Matthew D. Cox
  • Sample mounting press
    Publication number: 20030091676
    Abstract: A hydraulic sample mounting press utilizes a face seal against the top face of a molding cylinder. The face seal employs a hydraulic cylinder to press a disk-shaped surface of a cap piece against the top annular face of the mold cylinder for a metallographic mounting press. The face seal cylinder is mounted to a hydraulic fluid column that allows the face seal to rotate away from the mold cylinder for access to the molding cylinder and to rotate into place when a metallographic mount is to be molded.
    Type: Application
    Filed: April 18, 2002
    Publication date: May 15, 2003
    Inventors: Dwight F. Warren, Robert S. Tate, Matthew D. Cox