Patents by Inventor Stephan Koertge

Stephan Koertge 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 an erecting trestle
    Patent number: 11577943
    Abstract: The present invention relates to a crane, in particular a deck crane, which comprises a boom which is erectable in its height about an axis of rotation, and an erecting trestle for deflecting a rope of a retracting mechanism in order to erect the boom. The invention is characterized in that the erecting trestle is erectable in its height, and the erecting trestle comprises a pull bar which includes a rotary joint in order to rotate a first portion of the pull bar with respect to a second portion of the pull bar.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: February 14, 2023
    Assignee: Liebherr-MCCtec Rostock GmbH
    Inventors: Stephan Koertge, Fischer Helmut, Christian Matt
  • CRANE WITH A JACK
    Publication number: 20210155462
    Abstract: The present invention relates to a crane, in particular a deck crane, which comprises a boom which is erectable in its height about an axis of rotation, and an erecting trestle for deflecting a rope of a retracting mechanism in order to erect the boom. The invention is characterized in that the erecting trestle is erectable in its height, and the erecting trestle comprises a pull bar which includes a rotary joint in order to rotate a first portion of the pull bar with respect to a second portion of the pull bar.
    Type: Application
    Filed: November 19, 2020
    Publication date: May 27, 2021
    Inventors: Stephan KOERTGE, Fischer HELMUT, Christian MATT
  • Piling and drilling rig with foldable deflection apparatus
    Patent number: 8408329
    Abstract: The present invention relates to a piling and drilling rig having a leader, a deflection apparatus for the deflection a rope which is pivotally connected to the head of the leader in a manner pivotable between at least one transport position and at least one working position, with the deflection apparatus being rotatable about an axis standing obliquely on the axis of extent of the leader.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: April 2, 2013
    Assignee: Liebherr-Werk Nenzing GmbH
    Inventors: Stephan Koertge, Alfred Koller
  • PILING AND DRILLING RIG WITH FOLDABLE DEFLECTION APPARATUS
    Publication number: 20100316451
    Abstract: The present invention relates to a piling and drilling rig having a leader, a deflection apparatus for the deflection a rope which is pivotally connected to the head of the leader in a manner pivotable between at least one transport position and at least one working position, with the deflection apparatus being rotatable about an axis standing obliquely on the axis of extent of the leader.
    Type: Application
    Filed: June 16, 2010
    Publication date: December 16, 2010
    Applicant: Liebherr-Werk Nenzing GmbH
    Inventors: Stephan Koertge, Alfred Koller