Patents by Inventor Glenn D. Freeman

Glenn D. Freeman 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).

  • Tool for enlarging hole
    Patent number: 6048141
    Abstract: A tool for enlarging the size of an existing bore to a selected enlarged size. The tool has a drill sized to define the enlarged bore, and a guide having a cylindrical body sized so that the guide can be rotated in the existing bore. The guide and drill including cooperating structures for releasably interconnecting the guide and the drill with the guide and drill coaxially aligned whereby, with the guide releasable secured to the drill, the guide can be located within the original hole to guide the cutting action of the drill as it enlarges the original hole.
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: April 11, 2000
    Assignee: Emhart Inc.
    Inventor: Glenn D. Freeman