Patents by Inventor Wolfram E. Hasewend

Wolfram E. Hasewend 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).

  • Power transfer device with low effort mode shift system
    Patent number: 9156351
    Abstract: A power transfer device for a four-wheel drive vehicle includes a first shaft for transferring torque to a first driveline, a second shaft for transferring torque to a second driveline, and a transfer mechanism driving the second shaft. A mode clutch assembly drivingly connects the first shaft to the transfer mechanism and includes a clutch gear driven by the transfer mechanism and a mode sleeve. A sprocket hub associated with the transfer mechanism has external drive teeth meshed with internal drive teeth on the clutch gear with a predetermined amount of backlash therebetween. A ball cam mechanism centers the backlash and permits relative rotation between the transfer mechanism and the mode sleeve to circumvent a blocked mode shift.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: October 13, 2015
    Assignee: Magna Powertrain, Inc.
    Inventors: Wolfram E. Hasewend, Thomas E. Braford, Matthew Girlando