Patents by Inventor Michael E. Gunger

Michael E. Gunger 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: 6016753
    Abstract: An explosive material-energized plasticized metal slug cutter for use within tubular cylinders, or pipe or similar structures-especially in buried or otherwise inaccessible locations is disclosed. The cutter includes explosive material initially disposed in a particular hourglass or dogbone shape and surrounded by a layer of explosive-plasticizable copper or similar material which becomes both heated to plasticity and imparted with kinetic energy upon explosive material detonation. The hourglass or dogbone shape of the explosive material provides focus or shaping of the copper metal into a confined slug pattern enabling a clean and relatively low expended-energy cutting of a surrounding tubular cylinder into axial segments. The cutter employs a cutting action inclusive of spalling at the outer surface of the cut tubing opposite the region of slug impact.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: January 25, 2000
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Joseph G. Glenn, Gary H. Parsons, Michael E. Gunger, John J. Osborn