Patents by Inventor Lothar KRILL

Lothar KRILL 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).

  • Preloading device for a piston valve of a vibration damper
    Patent number: 9951839
    Abstract: A preloading device for a piston valve of a vibration damper includes a spring element which is fitted by an inner diameter onto a radially inner centering device which serves for inner centering of the spring element in the installed state of the preloading device. To provide a preloading device for a piston valve by which a reliable inner centering of a spring element can be ensured but which can be placed with low expenditure on assembly at the same time, the spring element is axially fixed at the centering device via retaining means in that the retaining means at least partially enclose the spring element axially on both sides and are rigidly connected to the centering device in each instance.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: April 24, 2018
    Assignee: ZF Friedrichshafen AG
    Inventors: Helmut Baalmann, Hassan Asadi, Hans Gonschorrek, Lothar Krill, Alexander Kruse, Oswald Lichtlein, Dirk Litterscheid, Thomas Manger, Heinz Sydekum, Harun Tucovic
  • Vibration Damper, And Piston Valve For A Vibration Damper
    Publication number: 20170009839
    Abstract: A vibration damper includes a piston rod (2) which transitions into a piston rod neck (4) while forming a contact shoulder (6) and guides a piston valve (1) at this piston rod neck (4), this piston valve (1) is pretensioned against the contact shoulder (6) of the piston rod (2). To reduce variances in damping force in batch fabrication of the vibration damper, a compensating disk (20) is fitted axially between the contact shoulder (6) and the piston valve (1), which compensating disk (20) is produced from a material with a lower yield strength compared to the piston rod (2) and/or compared to an immediately succeeding component of the piston valve (1).
    Type: Application
    Filed: December 17, 2014
    Publication date: January 12, 2017
    Applicant: ZF Friedrichshafen AG
    Inventors: Helmut BAALMANN, Hassan ASADI, Hans GONSCHORREK, Lothar KRILL, Alexander KRUSE, Oswald LICHTLEIN, Dirk LITTERSCHEID, Thomas MANGER, Harun TUCOVIC, Heinz SYDEKUM
  • Preloading Device For A Piston Valve Of A Vibration Damper
    Publication number: 20170002887
    Abstract: A preloading device for a piston valve of a vibration damper includes a spring element which is fitted by an inner diameter onto a radially inner centering device which serves for inner centering of the spring element in the installed state of the preloading device. To provide a preloading device for a piston valve by which a reliable inner centering of a spring element can be ensured but which can be placed with low expenditure on assembly at the same time, the spring element is axially fixed at the centering device via retaining means in that the retaining means at least partially enclose the spring element axially on both sides and are rigidly connected to the centering device in each instance.
    Type: Application
    Filed: December 17, 2014
    Publication date: January 5, 2017
    Inventors: Helmut BAALMANN, Hassan ASADI, Hans GONSCHORREK, Lothar KRILL, Alexander KRUSE, Oswald LICHTLEIN, Dirk LITTERSCHEID, Thomas MANGER, Heinz SYDEKUM, Harun TUCOVIC