Patents by Inventor Robert Foehr

Robert Foehr 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).

  • Traveling working machine
    Patent number: 8177017
    Abstract: The present invention relates to a traveling working machine, in particular an excavator, with an undercarriage on which the traveling gear is arranged, and an uppercarriage rotatably arranged on the undercarriage about a vertical axis of rotation. In accordance with the invention, the load-bearing steel construction of the uppercarriage is composed of at least one first and one second element, which are connected with each other via bolts and/or screws.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: May 15, 2012
    Assignee: Liebherr-Hydraulikbagger GmbH
    Inventors: Dirk Asam, Robert Foehr, Roland Wachter, Bernd Wager
  • Traveling Working Machine
    Publication number: 20100096211
    Abstract: The present invention relates to a traveling working machine, in particular an excavator, with an undercarriage on which the traveling gear is arranged, and an uppercarriage rotatably arranged on the undercarriage about a vertical axis of rotation. In accordance with the invention, the load-bearing steel construction of the uppercarriage is composed of at least one first and one second element, which are connected with each other via bolts and/or screws.
    Type: Application
    Filed: October 15, 2009
    Publication date: April 22, 2010
    Applicant: LIEBHERR-HYDRAULIKBAGGER GMBH
    Inventors: Dirk Asam, Robert Foehr, Roland Wachter, Bernd Wager