Patents by Inventor Bart Van Campen

Bart Van Campen 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).

  • Positioning device
    Patent number: 12547084
    Abstract: A positioning device for positioning a stage relative to a tool mounted on a carrier device includes two intersecting linear axes disposed one above the other for pre-positioning the stage. A first magnetic levitation unit is configured to support the stage on one of the linear axes, the stage being actively movable for fine positioning in six degrees of freedom. A measuring head and first and second 6-DOF encoders are configured to determine a position of the stage relative to the carrier device. The measuring head is mounted on the other linear axis. The first 6-DOF encoder is disposed between the carrier device and the measuring head and the second 6-DOF encoder is disposed between the measuring head and the stage. A second magnetic levitation unit disposed on the other linear axis is configured to actively move the measuring head in the six degrees of freedom.
    Type: Grant
    Filed: November 14, 2023
    Date of Patent: February 10, 2026
    Assignee: DR. JOHANNES HEIDENHAIN GMBH
    Inventors: Arjan Bakker, Bart van Campen
  • POSITIONING DEVICE
    Publication number: 20240168393
    Abstract: A positioning device for positioning a stage relative to a tool mounted on a carrier device includes two intersecting linear axes disposed one above the other for pre-positioning the stage. A first magnetic levitation unit is configured to support the stage on one of the linear axes, the stage being actively movable for fine positioning in six degrees of freedom. A measuring head and first and second 6-DOF encoders are configured to determine a position of the stage relative to the carrier device. The measuring head is mounted on the other linear axis. The first 6-DOF encoder is disposed between the carrier device and the measuring head and the second 6-DOF encoder is disposed between the measuring head and the stage. A second magnetic levitation unit disposed on the other linear axis is configured to actively move the measuring head in the six degrees of freedom.
    Type: Application
    Filed: November 14, 2023
    Publication date: May 23, 2024
    Inventors: Arjan Bakker, Bart van Campen
  • Guide having passive gravity compensation and a vertically movably mounted platform
    Patent number: 8902031
    Abstract: A guide having passive gravity compensation via a magnet assembly for guiding a first body relative to a second body in a vertical direction has a spring guide which allows movements between a first and second body in the vertical direction and blocks the same in all other directions. The first body is connected to a first magnet and the second body to a second magnet.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: December 2, 2014
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventors: John Compter, Bart Van Campen, Arjan Bakker
  • GUIDE HAVING PASSIVE GRAVITY COMPENSATION AND A VERTICALLY MOVABLY MOUNTED PLATFORM
    Publication number: 20130076467
    Abstract: A guide having passive gravity compensation via a magnet assembly for guiding a first body relative to a second body in a vertical direction has a spring guide which allows movements between a first and second body in the vertical direction and blocks the same in all other directions. The first body is connected to a first magnet and the second body to a second magnet.
    Type: Application
    Filed: March 30, 2011
    Publication date: March 28, 2013
    Applicant: Dr. Johannes Heidenhain GmbH
    Inventors: John Compter, Bart Van Campen, Arjan Bakker