Patents by Inventor Duane L. Prindle

Duane L. Prindle 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).

  • Satellite tracking system
    Patent number: 4672385
    Abstract: Satellite tracking system for use between a ground mount and a satellite dish antenna and including the main components of a gear drive, a worm gear driven by a gear motor, and a coupling shaft connected between the gear and brackets supporting the antenna. The worm gear drive includes a potentiometer connected thereto providing a controller signal input. Limit switches can be provided for limiting the rotation of the antenna between prescribed limits. The worm gear drive provides direct shaft drive for accurate rotation through wide angles.
    Type: Grant
    Filed: January 3, 1984
    Date of Patent: June 9, 1987
    Assignee: Mel-Du Inc.
    Inventor: Duane L. Prindle