Patents by Inventor Uwe GEHRINGER

Uwe GEHRINGER 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).

  • Sealing/guiding unit
    Patent number: 10400845
    Abstract: A seal guide unit for guiding and sealing a piston rod of a vibration damper having a first guide element and a second guide element fixedly connected to the first guide element and arranged coaxial to the first guide element, and a radially moveable piston rod seal arrangement arranged coaxially between the two guide elements and is at least indirectly surrounded in circumferential direction by at least one guide element, including a defined radial annular gap, and comes in at least indirect axial contact with at least one guide element. The piston rod seal arrangement includes a piston rod seal and a sliding element which encloses the piston rod seal in circumferential direction and axially limits the piston rod seal at least on one side. The sliding element has a lower friction coefficient than parts of the seal guide unit adjoin the piston rod seal arrangement.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: September 3, 2019
    Assignee: ZF Friedrichshafen AG
    Inventors: Thomas Thein, Stefan Liehmann, Wolfgang Breun, Alexander Pass, Michael Heinisch, Ingo Schau, Uwe Gehringer
  • Sealing/Guiding Unit
    Publication number: 20170328437
    Abstract: A seal guide unit for guiding and sealing a piston rod of a vibration damper having a first guide element and a second guide element fixedly connected to the first guide element and arranged coaxial to the first guide element, and a radially moveable piston rod seal arrangement arranged coaxially between the two guide elements and is at least indirectly surrounded in circumferential direction by at least one guide element, including a defined radial annular gap, and comes in at least indirect axial contact with at least one guide element. The piston rod seal arrangement includes a piston rod seal and a sliding element which encloses the piston rod seal in circumferential direction and axially limits the piston rod seal at least on one side. The sliding element has a lower friction coefficient than parts of the seal guide unit adjoin the piston rod seal arrangement.
    Type: Application
    Filed: October 12, 2015
    Publication date: November 16, 2017
    Inventors: Thomas THEIN, Stefan LIEHMANN, Wolfgang BREUN, Alexander PASS, Michael HEINISCH, Ingo SCHAU, Uwe GEHRINGER