Patents by Inventor Thomas SCHMITHÜSEN

Thomas SCHMITHÜSEN 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).

  • Emergency-operation valve block for a mobile crane
    Patent number: 12528677
    Abstract: An emergency-operation valve block includes: a drive port for hydraulically connecting the valve block to an emergency drive of a mobile crane, at least two drive mechanism ports for hydraulically connecting the valve block to one drive mechanism of the mobile crane each, at least two closing valves which are assigned to one of the drive mechanism ports each and designed to selectively open or close a hydraulic connection between the drive port and the drive mechanism port respectively assigned to it, and an actuation valve which is designed to selectively reverse the hydraulic connection between a pressure side and return side of the drive port and corresponding sides of the drive mechanism ports. A mobile crane may include such an emergency-operation valve block.
    Type: Grant
    Filed: July 18, 2023
    Date of Patent: January 20, 2026
    Assignee: MANITOWOC CRANE GROUP FRANCE SAS
    Inventors: Johannes Schürmann, Thomas Schmithüsen, Verena Bohmann, Harald Wiesner
  • EMERGENCY-OPERATION VALVE BLOCK FOR A MOBILE CRANE
    Publication number: 20240034601
    Abstract: An emergency-operation valve block includes: a drive port for hydraulically connecting the valve block to an emergency drive of a mobile crane, at least two drive mechanism ports for hydraulically connecting the valve block to one drive mechanism of the mobile crane each, at least two closing valves which are assigned to one of the drive mechanism ports each and designed to selectively open or close a hydraulic connection between the drive port and the drive mechanism port respectively assigned to it, and an actuation valve which is designed to selectively reverse the hydraulic connection between a pressure side and return side of the drive port and corresponding sides of the drive mechanism ports. A mobile crane may include such an emergency-operation valve block.
    Type: Application
    Filed: July 18, 2023
    Publication date: February 1, 2024
    Inventors: Johannes SCHÜRMANN, Thomas SCHMITHÜSEN, Verena BOHMANN, Harald WIESNER