Patents Examined by Eric Culbeth
  • Patent number: 8297634
    Abstract: An agricultural vehicle comprises separate wheel suspension assemblies corresponding to each wheel of the vehicle. Each wheel suspension assembly includes a strut assembly wherein the strut assembly is connected to the chassis at a pivot and to a respective wheel, and a dual action hydraulic cylinder that is connected to both the strut assembly at a point distal from the pivot and the chassis of the vehicle. Motion of the strut assembly around the pivot is affected by action of the hydraulic cylinder. In some embodiments, the dual action hydraulic cylinders are in fluid communication with the diagonally opposite hydraulic cylinder such that when one cylinder moves into an extended or retracted position the other diagonally opposite cylinder is urged into the same position. In some embodiments, the wheel suspension assemblies are attached to slidable drawer assemblies on each side of the vehicle.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: October 30, 2012
    Assignee: Miller-St. Nazianz, Inc.
    Inventor: Roy Bittner