Patents by Inventor Joakim Hultgren

Joakim Hultgren 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).

  • Differential gear for a multi-shaft wheeled motor vehicle, and a drive train comprising several such differential gears
    Patent number: 8506441
    Abstract: A differential gear, comprising a first releasable lock (42, 44) between a crown wheel (14) and the one drive shaft, a second, releasable lock (66, 68) between the crown wheel (14) and a differential housing (24), and a third releasable lock (74, 76) between the differential housing (24) and fixed vehicle part (26). The second and third locks are designed to be opened and locked alternately with one another. It is thereby possible to achieve drive shafts rotating in opposite directions to one another on the left and right side of the vehicle and thereby to achieve a center swiveling of the vehicle when the first lock (42, 44) is simultaneously kept in the locked position.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: August 13, 2013
    Assignee: BAE Systems Hägglunds Aktiebolag
    Inventor: Joakim Hultgren
  • DIFFERENTIAL GEAR FOR A MULTI-SHAFT WHEELED MOTOR VEHICLE, AND A DRIVE TRAIN COMPRISING SEVERAL SUCH DIFFERENTIAL GEARS
    Publication number: 20090203488
    Abstract: A differential gear, comprising a first releasable lock (42, 44) between a crown wheel (14) and the one drive shaft, a second, releasable lock (66, 68) between the crown wheel (14) and a differential housing (24), and a third releasable lock (74, 76) between the differential housing (24) and fixed vehicle part (26). The second and third locks are designed to be opened and locked alternately with one another. It is thereby possible to achieve drive shafts rotating in opposite directions to one another on the left and right side of the vehicle and thereby to achieve a center swiveling of the vehicle when the first lock (42, 44) is simultaneously kept in the locked position.
    Type: Application
    Filed: February 2, 2007
    Publication date: August 13, 2009
    Applicant: BAE SYSTEMS HAGGLUNDS AKTIEBOLAG
    Inventor: Joakim Hultgren