Patents by Inventor Eric A. Falkenhagen

Eric A. Falkenhagen 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).

  • Maintenance and extraction of poles
    Patent number: 5450912
    Abstract: An apparatus for excavation of earth around a pole embedded in an earth surface comprises a hollow auger in the form of a cylindrical drum with a helical flight about the outer wall thereof. The hollow auger is constructed in two halves to enable movement between an open position and a closed position embracing the pole. The hollow auger is rotatably journalled in a support frame and is driven by a drive motor engaging a spur gear around the upper position of the auger. The support frame is slidably mounted on a frame to enable extension and retraction of the auger.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: September 19, 1995
    Assignee: Polemate Pty Ltd.
    Inventors: Gavin J. Cahill, Ronald W. Lousick, Eric A. Falkenhagen