Patents Represented by Law Firm Cushman, Darby & Cuchman
  • Patent number: 4958696
    Abstract: In a switching arrangement for the hydraulic drive of a full-track vehicle, in which arrangement at least one drive motor is associated with each respective endless ground-engaging track at both sides of the longitudinal axis of the vehicle, there are provided for the drive motors located at both sides of the longitudinal axis of the vehicle, a common source of pressurized fluid and a valve arrangement by which the drive motors can be connected with the common source of pressurized fluid in series for moving the tracks in the same sense and in parallel for moving the tracks in a mutually opposing sense, and by which each drive motor can, if required, separately be supplied with pressurized fluid.
    Type: Grant
    Filed: February 8, 1989
    Date of Patent: September 25, 1990
    Assignee: Voest-Alpine Maschinenbau Gesellschaft m.b.h.
    Inventor: Karl Lerchbaum