Patents by Inventor John Compter

John Compter 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).

  • Drive for an XY-table and XY-table
    Patent number: 9923445
    Abstract: A drive for an XY-table includes a stationary, ferromagnetic and U-shaped yoke including a first limb and a second limb which are located together in one plane, and having a movable ferromagnetic bar, the yoke and the bar carrying a magnetic circuit with a flux that takes a path across air gaps between the limbs and the bar, and causes vertical reluctance forces there which counteract the gravitational force of the bar. Bar is parallel to and below the plane defined by the limbs.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: March 20, 2018
    Assignee: DR. JOHANNES HEIDENHAIN GMBH
    Inventors: René Klaver, John Compter
  • XY-table
    Patent number: 9671701
    Abstract: An XY-table includes a separate drive for reversing the direction of movement of the table. A ferromagnetic rib projects at one edge of the table and extends perpendicular to the direction of movement of the table to be reversed. The drive has a magnetic yoke for receiving the rib when the table is near a reversal point, the free ends of the magnetic yoke having pole shoes which concentrate a magnetic flux in the yoke, switchable with the aid of a reversal coil, in an air gap through which the rib extends into the interior of the yoke.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: June 6, 2017
    Assignee: DR. JOHANNES HEIDENHAIN GMBH
    Inventors: René Klaver, John Compter
  • XY-TABLE
    Publication number: 20150378266
    Abstract: An XY-table includes a separate drive for reversing the direction of movement of the table. A ferromagnetic rib projects at one edge of the table and extends perpendicular to the direction of movement of the table to be reversed. The drive has a magnetic yoke for receiving the rib when the table is near a reversal point, the free ends of the magnetic yoke having pole shoes which concentrate a magnetic flux in the yoke, switchable with the aid of a reversal coil, in an air gap through which the rib extends into the interior of the yoke.
    Type: Application
    Filed: June 30, 2015
    Publication date: December 31, 2015
    Inventors: René Klaver, John Compter
  • DRIVE FOR AN XY-TABLE AND XY-TABLE
    Publication number: 20150381023
    Abstract: A drive for an XY-table includes a stationary, ferromagnetic and U-shaped yoke including a first limb and a second limb which are located together in one plane, and having a movable ferromagnetic bar, the yoke and the bar carrying a magnetic circuit with a flux that takes a path across air gaps between the limbs and the bar, and causes vertical reluctance forces there which counteract the gravitational force of the bar. Bar is parallel to and below the plane defined by the limbs.
    Type: Application
    Filed: June 30, 2015
    Publication date: December 31, 2015
    Inventors: René Klaver, John Compter
  • 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