Patents by Inventor Robert F. Heiskell

Robert F. Heiskell 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: 4031385
    Abstract: A solar tracking system is disclosed, utilizing a photovoltaic device, for following the changing solar position. When the sun ceases to be the brightest object in the sky, such as during periods of partial cloud cover, and the system seeks to acquire the brightest spot in preference to the sun, the photovoltaic device is automatically overridden. The override system is clock-driven and moves the tracking system to approximate the solar position so that the sun can be immediately reacquired by the photovoltaic device when the sun re-energizes as the brightest object in the sky.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: June 21, 1977
    Assignee: Desert Sunshine Exposure Tests, Inc.
    Inventors: Gene A. Zerlaut, Robert F. Heiskell