Patents by Inventor Willi ACKERMANN

Willi ACKERMANN 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).

  • Climbing device for a tower crane
    Patent number: 10273122
    Abstract: The present invention relates to a climbing device for a revolving tower crane having a climbing frame movable along, the crane tower for climbing in and/or climbing down tower sections, wherein a guide is provided for the longitudinally movable support of the climbing frame with respect to the crane tower. In accordance with the invention, the guide has resiliently flexibly supported and/or resiliently flexible transverse support elements transversely to the travel direction of the climbing frame.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: April 30, 2019
    Assignee: Liebherr-Werk Biberach GmbH
    Inventors: Alfred Hess, Willi Ackermann
  • CLIMBING DEVICE FOR A TOWER CRANE
    Publication number: 20190084810
    Abstract: The present invention relates to a climbing device for a revolving tower crane having a climbing frame movable along, the crane tower for climbing in and/or climbing down tower sections, wherein a guide is provided for the longitudinally movable support of the climbing frame with respect to the crane tower. In accordance with the invention, the guide has resiliently flexibly supported and/or resiliently flexible transverse support elements transversely to the travel direction of the climbing frame.
    Type: Application
    Filed: September 1, 2016
    Publication date: March 21, 2019
    Applicant: Liebherr-Werk Biberach Gmbh
    Inventors: Alfred HESS, Willi ACKERMANN
  • CLIMBING DEVICE FOR A TOWER CRANE
    Publication number: 20170008740
    Abstract: The present invention relates to a climbing device for a revolving tower crane having a climbing frame movable along, the crane tower for climbing in and/or climbing down tower sections, wherein a guide is provided for the longitudinally movable support of the climbing frame with respect to the crane tower. In accordance with the invention, the guide has resiliently flexibly supported and/or resiliently flexible transverse support elements transversely to the travel direction of the climbing frame.
    Type: Application
    Filed: September 1, 2016
    Publication date: January 12, 2017
    Applicant: Liebherr-Werk Biberach Gmbh
    Inventors: Alfred HESS, Willi ACKERMANN