Patents Assigned to Lewis Equipment Limited
  • Vehicle steering system
    Patent number: 6854539
    Abstract: A land vehicle has four wheels (10) by which the vehicle is driven and steered and the wheels are driven by hydraulic motors (11). In one arrangement the vehicle is steered by at least one pair of steerable wheels and supply of fluid to the motors is arranged to reduce the speed of a wheel or wheels at one side of the vehicle during turning. The vehicle can also be operated in the skid steer mode with the wheels locked in a straight ahead position.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: February 15, 2005
    Assignee: Lewis Equipment Limited
    Inventor: Ian William Lewis