Patents by Inventor Klaus-Guenter Vennemann

Klaus-Guenter Vennemann 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).

  • HIGH-STRENGTH LIGHTWEIGHT SCREW HAVING A DOUBLE CONTOUR ENGAGEMENT
    Publication number: 20180156257
    Abstract: A high-strength screw (1) includes a head (2) having a tool engagement external contour (7) and a tool engagement internal contour (8). For example, the tool engagement external contour (7) is an external hexagonal and the tool engagement internal contour (8) is an internal hexagonal. A plurality of additional pocket-shaped impressions (13) are arranged in the tool engagement internal contour (8) between corners (12).
    Type: Application
    Filed: December 1, 2017
    Publication date: June 7, 2018
    Inventors: Reiner Rühl, Thorsten Schmitt, Gunther Hartmann, Manuel Kellner, Klaus-Günter Vennemann
  • Drive unit for a motor vehicle
    Patent number: 8024988
    Abstract: A drive unit for a motor vehicle, comprising an engine, a transmission or gearbox, a clutch aggregate for transmitting torque, the clutch aggregate including at least two friction clutches that are assigned to an input shaft of the transmission or gearbox, wherein at least one of the at least two friction clutches features an energy accumulator operatively arranged to generate a lock-up force required for torque transmission through the clutch aggregate, and a control unit operatively arranged to control an automatic activation of the at least two friction clutches and the transmission or gearbox, wherein in the event of a malfunction of the activation of the friction clutch, the stored energy in the accumulator creates an interruption of torque transmission within a section of the drive unit connected downstream of the clutch aggregate.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: September 27, 2011
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventor: Klaus-Guenter Vennemann
  • DRIVE UNIT FOR A MOTOR VEHICLE
    Publication number: 20100099536
    Abstract: A drive unit for a motor vehicle, comprising an engine, a transmission or gearbox, a clutch aggregate for transmitting torque, the clutch aggregate including at least two friction clutches that are assigned to an input shaft of the transmission or gearbox, wherein at least one of the at least two friction clutches features an energy accumulator operatively arranged to generate a lock-up force required for torque transmission through the clutch aggregate, and a control unit operatively arranged to control an automatic activation of the at least two friction clutches and the transmission or gearbox, wherein in the event of a malfunction of the activation of the friction clutch, the stored energy in the accumulator creates an interruption of torque transmission within a section of the drive unit connected downstream of the clutch aggregate.
    Type: Application
    Filed: December 21, 2009
    Publication date: April 22, 2010
    Applicant: LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KG
    Inventor: Klaus-Guenter Vennemann