Patents Assigned to Yale Materials Handling Limited
  • Power assisted steering for vehicles
    Patent number: 5005659
    Abstract: An electrically propelled vehicle with hydraulic power steering supplied from an electricaly driven pump includes a sensor for sensing any voltage generated in the traction motor of the vehicle, for example, when it is coasting, and after comparing this generated voltage with a reference voltage a sensor for signalling the actuation of the power steering pump when the generated voltage exceeds the reference voltage.
    Type: Grant
    Filed: February 12, 1988
    Date of Patent: April 9, 1991
    Assignee: Yale Materials Handling Limited
    Inventors: John Jones, Rinaldo G. Uccellini