Patents by Inventor Per E. Lindqvist

Per E. Lindqvist has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Small lightweight driverless vehicle
    Patent number: 4718350
    Abstract: A driverless vehicle is provided with support wheels on one side and drive wheels on the opposite side. The drive wheels perform the dual function of supporting one side of the body and propelling the vehicle by frictional contact with a drive shaft. The drive wheels are coupled together for oscillation about a vertical axis and are biased to a drive position. The vehicle body is provided with a cam for causing accumulation upon contact with another vehicle.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: January 12, 1988
    Assignee: SI Handling Systems, Inc.
    Inventors: Charles E. Jacoby, Per E. Lindqvist