Patents by Inventor Fred R. Hickman

Fred R. Hickman 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).

  • Guy control system for extensible mast
    Patent number: 5025606
    Abstract: An extensible mast has a computer control for automatically deploying guy cables. As the mast is raised, the cables are deployed at a rate which retains the proper geometric relationships of the system. The system initially calculates the relative locations of the mast and cable anchor points, which can be placed in convenient locations. A winch suitable for use with the system measures the tension on deployed guy cables and the length of cable which has been unwound from the winch drum.
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: June 25, 1991
    Assignee: Rapid Deployment Towers, Inc.
    Inventors: Henry J. McGinnis, Fred R. Hickman, Wesley N. Ludwig