Patents by Inventor Ulrich W. Bechem

Ulrich W. Bechem 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).

  • Activated earth drill
    Patent number: 4796713
    Abstract: The invention relates to a drill bit which includes a drive arrangement having two opposed drive shafts which are transverse to the drill rod axis, mechanism for driving the shafts and a rock comminuting cutter which is eccentrically mounted on each of the shafts.
    Type: Grant
    Filed: April 14, 1987
    Date of Patent: January 10, 1989
    Inventors: Ulrich W. Bechem, Klaus Bechem, Philip C. Bechem