Patents by Inventor John R. Dupree

John R. Dupree 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).

  • Patent number: 6557660
    Abstract: An assembly for converting a vehicle between two-wheel and four-wheel drive. The assembly includes a bell form of a constant velocity joint being supported by a bearing mounted to one of the vehicle knuckle and the wheel hub. The bell form further includes a collar that has a connector, and a spindle of the wheel hub has a connector in close proximity to the bell form connector. A clutch ring actuated by an actuator is moved by the actuator between engagement with one of the connectors and engagement with both of the connectors.
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: May 6, 2003
    Assignee: Warn Industries, Inc.
    Inventors: Bryan M. Averill, Kip E. Clohessy, John R. Dupree, Fred L. Ewer, Mark J. Fogelberg, Randy C. Karambelas, Peter A. Lines, Peter J. Pugliese
  • Publication number: 20030066701
    Abstract: An assembly for converting a vehicle between two-wheel and four-wheel drive. The assembly includes a bell form of a constant velocity joint being supported by a bearing mounted to one of the vehicle knuckle and the wheel hub. The bell form further includes a collar that has a connector, and a spindle of the wheel hub has a connector in close proximity to the bell form connector. A clutch ring actuated by an actuator is moved by the actuator between engagement with one of the connectors and engagement with both of the connectors.
    Type: Application
    Filed: October 10, 2001
    Publication date: April 10, 2003
    Inventors: Bryan M. Averill, Kip E. Clohessy, John R. Dupree, Fred L. Ewer, Mark J. Fogelberg, Randy C. Karambelas, Peter A. Lines, Scott J. Pugliese
  • Patent number: 5520272
    Abstract: A hub lock device for converting a vehicle between four-wheel and two-wheel drive, the hub lock being actuated by automatic actuation or manual actuation. A sliding clutch ring that engages and disengages the wheel and axle is trapped in a cage. An extender bar from the cage has a hook end that hooks over the edge of a nut. The nut is moved between inner and outer positions by a manual dial. In the outer position, the nut forces the cage, through engagement of the hook end, to the position whereat the clutch ring is urged to interlock the axle and wheel. In the inner position the nut releases the cage, i.e., the hook can extend between an inner and outer position, to permit automatic actuation. The automatic actuation includes cam actuation wherein the spindle nut provides the cam actuator and brake surface for secondary cam actuation.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: May 28, 1996
    Assignee: Warn Industries, Inc.
    Inventors: Fred L. Ewer, Philip J. Cronin, II, John R. DuPree