Patents by Inventor Stephen A. Morrison

Stephen A. Morrison 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).

  • Device for positioning an antenna
    Patent number: 6188367
    Abstract: A device for positioning an antenna on a vehicle. The device includes a first motor-driven timing belt connected to opposite sides of the antenna frame for rotating the antenna about its elevational axis. A constant force spring or a cam compensates for changes in belt path geometry as the antenna rotates. A second motor-driven timing belt is wrapped around a perimeter of a base plate for rotating the antenna about its azimuth axis. Electrical signals for the antenna and the drive motors are multiplexed and passed through a single coaxial cable in a rotary joint along the axis of azimuth rotation.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: February 13, 2001
    Assignee: TracStar Systems, Inc.
    Inventors: Stephen A. Morrison, Chris L. Hadley