Patents by Inventor Mark Mulhern

Mark Mulhern 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).

  • Linear positioning system utilizing helically polarized magnet
    Patent number: 9835695
    Abstract: A system includes a helically polarized magnet having a plurality of north and south poles circumferentially and helically patterned along a linear axis. Magnetic flux varies at different positions along a linear path in a direction aligned with the linear axis. A multi-axis magnetometer and/or magnetometer array is configured with at least two sensing coils to detect the position of the helically polarized magnet by sensing the magnetic flux variations at the different positions along the linear path.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: December 5, 2017
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Joseph Michael Maurio, Charles C. McCarthy, Mark Mulhern
  • LINEAR POSITIONING SYSTEM UTILIZING HELICALLY POLARIZED MAGNET
    Publication number: 20170299665
    Abstract: A system includes a helically polarized magnet having a plurality of north and south poles circumferentially and helically patterned along a linear axis. Magnetic flux varies at different positions along a linear path in a direction aligned with the linear axis. A multi-axis magnetometer and/or magnetometer array is configured with at least two sensing coils to detect the position of the helically polarized magnet by sensing the magnetic flux variations at the different positions along the linear path.
    Type: Application
    Filed: March 29, 2017
    Publication date: October 19, 2017
    Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: JOSEPH MICHAEL MAURIO, CHARLES C. MCCARTHY, MARK MULHERN
  • Linear positioning system utilizing helically polarized magnet
    Patent number: 9671472
    Abstract: A system includes a helically polarized magnet having a plurality of north and south poles circumferentially and helically patterned along a linear axis. Magnetic flux varies at different positions along a linear path in a direction aligned with the linear axis. A multi-axis magnetometer and/or magnetometer array is configured with at least two sensing coils to detect the position of the helically polarized magnet by sensing the magnetic flux variations at the different positions along the linear path.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: June 6, 2017
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Joseph Michael Maurio, Charles C. McCarthy, Mark Mulhern
  • LINEAR POSITIONING SYSTEM UTILIZING HELICALLY POLARIZED MAGNET
    Publication number: 20150247903
    Abstract: A system includes a helically polarized magnet having a plurality of north and south poles circumferentially and helically patterned along a linear axis. Magnetic flux varies at different positions along a linear path in a direction aligned with the linear axis. A multi-axis magnetometer and/or magnetometer array is configured with at least two sensing coils to detect the position of the helically polarized magnet by sensing the magnetic flux variations at the different positions along the linear path.
    Type: Application
    Filed: March 3, 2014
    Publication date: September 3, 2015
    Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: JOSEPH MICHAEL MAURIO, Charles C. McCarthy, Mark Mulhern