Patents by Inventor Stefan Windbacher

Stefan Windbacher 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).

  • Crane with adjustable suspended ballast
    Patent number: 11577941
    Abstract: The present invention relates to a crane comprising a main boom and a rearwardly directed derrick boom for bracing the main boom, wherein a suspended ballast is directly or indirectly attached to the derrick head via connecting means, wherein at least one luffable, rearwardly aligned ballast adjusting boom is provided, which acts on the connecting means and influences the suspended ballast radius by its luffing angle.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: February 14, 2023
    Assignee: Liebherr-Werk Ehingen GmbH
    Inventors: Stefan Windbacher, Ulrich Wiedemann, Julian Wehrstedt, Roland Bohnacker
  • Measuring device for load measurement in a hoist
    Patent number: 11492235
    Abstract: A measuring device for load sensing in a lifting-cable-based hoist, in particular a crane, having at least one pulley for deflecting the lifting cable of the hoist, a fastening means in the form of a cable loop, at the end of which the pulley is mounted so as to be rotatable about its roller axis, and at least one measuring element for sensing a force applied to the pulley.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: November 8, 2022
    Assignee: LIEBHERR-WERK EHINGEN GMBH
    Inventors: Julian Wehrstedt, Stefan Windbacher, Oliver Ruoss, Uwe Frommelt
  • MEASURING DEVICE FOR LOAD MEASUREMENT IN A HOIST
    Publication number: 20210094802
    Abstract: A measuring device for load sensing in a lifting-cable-based hoist, in particular a crane, having at least one pulley for deflecting the lifting cable of the hoist, a fastening means in the form of a cable loop, at the end of which the pulley is mounted so as to be rotatable about its roller axis, and at least one measuring element for sensing a force applied to the pulley.
    Type: Application
    Filed: December 19, 2018
    Publication date: April 1, 2021
    Inventors: Julian WEHRSTEDT, Stefan WINDBACHER, Oliver RUOSS, Uwe FROMMELT
  • CRANE WITH ADJUSTABLE SUSPENDED BALLAST
    Publication number: 20200407201
    Abstract: The present invention relates to a crane comprising a main boom and a rearwardly directed derrick boom for bracing the main boom, wherein a suspended ballast is directly or indirectly attached to the derrick head via connecting means, wherein at least one luffable, rearwardly aligned ballast adjusting boom is provided, which acts on the connecting means and influences the suspended ballast radius by its luffing angle.
    Type: Application
    Filed: June 23, 2020
    Publication date: December 31, 2020
    Inventors: Stefan Windbacher, Ulrich Wiedemann, Julian Wehrstedt, Roland Bohnacker
  • METHOD FOR DETERMINING THE ROPE REEVING OF A PULLEY BLOCK
    Publication number: 20200095100
    Abstract: The disclosure relates to a method for determining the number of rope reevings of a pulley block with a top block and a bottom block, wherein the rope path of at least one rope line of the pulley block, which is covered during a time window, is detected and compared with at least one rope path of a further rope line covered within the time window and/or with the height difference between top block and bottom block changed within the time window, in order to determine the number of rope reevings of the pulley block.
    Type: Application
    Filed: September 20, 2019
    Publication date: March 26, 2020
    Inventors: Stefan WINDBACHER, Julian WEHRSTEDT, Hans-Joachim WENGER
  • Load weighing at the lifting hook
    Patent number: 10358322
    Abstract: The invention relates to an apparatus for weighing the hook load of a crane, wherein different measurement accuracies can be set at the apparatus, comprising at least one measurement device, at least one retaining pin, and at least one coupling section. The invention is additionally directed to a hook block and to a crane having a corresponding apparatus.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: July 23, 2019
    Assignee: Liebherr-Werk Ehingen GmbH
    Inventors: Stefan Windbacher, Julian Wehrstedt
  • LOAD WEIGHING AT THE LIFTING HOOK
    Publication number: 20170369286
    Abstract: The invention relates to an apparatus for weighing the hook load of a crane, wherein different measurement accuracies can be set at the apparatus, comprising at least one measurement device, at least one retaining pin, and at least one coupling section. The invention is additionally directed to a hook block and to a crane having a corresponding apparatus.
    Type: Application
    Filed: June 22, 2017
    Publication date: December 28, 2017
    Inventors: Stefan Windbacher, Julian Wehrstedt