Patents by Inventor David McKeeman

David McKeeman 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).

  • Patent number: 9080895
    Abstract: A magnetic rotational position sensor assembly for measurement of a rotational angular position of a rotating structure. The sensor assembly includes a shaft member extending along a primary rotational axis for primary rotational movement in response to rotation of the rotating structure, a motion conversion member structured and configured to transform the primary rotational movement of the shaft member into secondary movement, a magnet member secured to the motion conversion member for displacement along a travel path in response to the converted secondary movement of the motion conversion member, and a non-contact magnetic sensor that senses a change in position of the magnet member by sensing a corresponding variation in the magnetic field during displacement of the magnet member along the travel path in response to rotation of the rotating structure, wherein the magnetic sensor generates an output signal representative of a relative rotational angular position of the rotating structure.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: July 14, 2015
    Assignee: Sensata Technologies, Inc.
    Inventors: Tom Martin, David McKeeman, Mark Vorndran, Gary Johnson
  • Publication number: 20120299586
    Abstract: A magnetic rotational position sensor assembly for measurement of a rotational angular position of a rotating structure. The sensor assembly includes a shaft member extending along a primary rotational axis for primary rotational movement in response to rotation of the rotating structure, a motion conversion member structured and configured to transform the primary rotational movement of the shaft member into secondary movement, a magnet member secured to the motion conversion member for displacement along a travel path in response to the converted secondary movement of the motion conversion member, and a non-contact magnetic sensor that senses a change in position of the magnet member by sensing a corresponding variation in the magnetic field during displacement of the magnet member along the travel path in response to rotation of the rotating structure, wherein the magnetic sensor generates an output signal representative of a relative rotational angular position of the rotating structure.
    Type: Application
    Filed: May 25, 2012
    Publication date: November 29, 2012
    Inventors: Tom Martin, David McKeeman, Mark Vorndran, Gary Johnson
  • Publication number: 20060117902
    Abstract: A pedal assembly including a pedal support and a pedal arm. The pedal arm includes a lever portion and an integral pivot portion arranged along a pivot axis. The pivot portion is rotatably engaged with the pedal support to provide pivotal movement of the pedal arm about the pivot axis. A magnetic field generator providing a magnetic field is engaged with the pivot portion such that pivotal movement of the pedal arm results in rotational displacement of the magnetic field about the pivot axis. A sensor device is engaged with the pedal support and comprises at least one magnetic flux sensor positioned within the magnetic field to sense variations in the magnetic field during rotational displacement and to generate an output signal representative of a rotational position of the magnetic field relative to the magnetic flux sensor.
    Type: Application
    Filed: November 29, 2004
    Publication date: June 8, 2006
    Inventors: Tom Martin, David McKeeman