Patents by Inventor Alan S. Fields

Alan S. Fields 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).

  • Combination pursuit and compensatory display system
    Patent number: 4129087
    Abstract: This invention is a display system to assist a human operator in manually ntrolling a ship. This system may be operated in a conventional autopilot mode, where the system controls the ship completely; in a conventional hand electric mode, where the helsman manually controls the ship unaided by the system; and in a third mode, where the autopilot provides the helmsman all the information needed to steer the ship properly while the helmsman maintains direct manual control over the ship. In addition to the usual displays such as a rudder angle indicator and a compass repeater, the system provides a display which shows both the actual angle of the helm wheel and optimum angle for the helm wheel calculated by the autopilot.
    Type: Grant
    Filed: August 19, 1977
    Date of Patent: December 12, 1978
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Joseph G. Dimmick, William J. Weingartner, Alan S. Fields, Donald L. Fairhead, Rosemary Musson