Patents by Inventor Aart Jan De Graaf

Aart Jan De Graaf 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).

  • Vehicle, method for moving such a vehicle, and transport system for objects such as items of luggage
    Patent number: 9475522
    Abstract: A method and an automatically controlled vehicle for transporting an object such as an item of luggage, with two pivotable axles each having at the outer ends two wheels driven with drive motors, with a control unit which is configured to perform the steps of controlling each of the drive motors such that an at least substantially equal basic drive torque is applied to each of the wheels and, for the purpose of changing the direction of the vehicle, controlling the drive motors associated with a wheel support arm such that a steering torque which is of the same magnitude but of opposite direction is applied in addition to the basic drive torque to the associated wheels.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: October 25, 2016
    Assignee: VANDERLANDE INDUSTRIES B.V.
    Inventors: Erik Wilhelmus Petronella Van Meijl, Jozef Antonius Wilhelmus Maria Van Eekelen, Aart Jan De Graaf
  • VEHICLE, METHOD FOR MOVING SUCH A VEHICLE, AND TRANSPORT SYSTEM FOR OBJECTS SUCH AS ITEMS OF LUGGAGE
    Publication number: 20160167706
    Abstract: A method and an automatically controlled vehicle for transporting an object such as an item of luggage, with two pivotable axles each having at the outer ends two wheels driven with drive motors, with a control unit which is configured to perform the steps of controlling each of the drive motors such that an at least substantially equal basic drive torque is applied to each of the wheels and, for the purpose of changing the direction of the vehicle, controlling the drive motors associated with a wheel support arm such that a steering torque which is of the same magnitude but of opposite direction is applied in addition to the basic drive torque to the associated wheels.
    Type: Application
    Filed: July 7, 2014
    Publication date: June 16, 2016
    Inventors: Erik Wilhelmus Petronell Van Meijl, Jozef Antonius Wilhelmu Van Eekelen, Aart Jan De Graaf