Patents by Inventor Christian ZENNER

Christian ZENNER 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).

  • Method for repairing a piston-cylinder unit within a working machine
    Patent number: 11754099
    Abstract: Disclosed is a method for repairing a piston-cylinder unit within a working machine or within an attachment, wherein a connection of the piston rod with the machine or implement structure is released and the piston rod, the piston and at least one bearing head is jointly removed from the cylinder housing as an assembly and replaced by a premounted substitute assembly consisting of piston rod, piston and at least one bearing head.
    Type: Grant
    Filed: October 12, 2022
    Date of Patent: September 12, 2023
    Assignee: LIEBHERR-COMPONENTS KIRCHDORF GMBH
    Inventors: Christian Zenner, Jennifer Kries
  • METHOD FOR REPAIRING A PISTON-CYLINDER UNIT WITHIN A WORKING MACHINE
    Publication number: 20230122544
    Abstract: Disclosed is a method for repairing a piston-cylinder unit within a working machine or within an attachment, wherein a connection of the piston rod with the machine or implement structure is released and the piston rod, the piston and at least one bearing head is jointly removed from the cylinder housing as an assembly and replaced by a premounted substitute assembly consisting of piston rod, piston and at least one bearing head.
    Type: Application
    Filed: October 12, 2022
    Publication date: April 20, 2023
    Inventors: Christian ZENNER, Jennifer KRIES
  • Method for repairing a piston-cylinder unit within a working machine
    Patent number: 11499573
    Abstract: Disclosed is a method for repairing a piston-cylinder unit within a working machine or within an attachment, wherein a connection of the piston rod with the machine or implement structure is released and the piston rod, the piston and at least one bearing head is jointly removed from the cylinder housing as an assembly and replaced by a premounted substitute assembly consisting of piston rod, piston and at least one bearing head.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: November 15, 2022
    Assignee: Liebherr-Components Kirchdorf GmbH
    Inventors: Christian Zenner, Jennifer Kries
  • Method for repairing a piston-cylinder unit within a working machine
    Publication number: 20200072252
    Abstract: Disclosed is a method for repairing a piston-cylinder unit within a working machine or within an attachment, wherein a connection of the piston rod with the machine or implement structure is released and the piston rod, the piston and at least one bearing head is jointly removed from the cylinder housing as an assembly and replaced by a premounted substitute assembly consisting of piston rod, piston and at least one bearing head.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 5, 2020
    Inventors: Christian ZENNER, Jennifer KRIES