Patents Assigned to The Claas OGH
  • Hydraulic valve device
    Patent number: 4266466
    Abstract: A hydraulic valve device for controlling a double action, piston-type servomotor adaptable for steering a self-propelled agricultural vehicle and including a pair of identical interconnected valve groups, with each group connected to an opposite side of the servomotor and further connected to a source of pressurized fluid and an exhaust outlet, whereby selective actuation of the hydraulic device creates a pressure difference in a servomotor forcing the piston to move in a predetermined direction.
    Type: Grant
    Filed: November 30, 1977
    Date of Patent: May 12, 1981
    Assignee: The Claas OGH
    Inventor: Horst Ziems