Patents by Inventor Frank E. Terrill

Frank E. Terrill 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).

  • Passive daylighting system
    Patent number: 4820020
    Abstract: A passive daylighting system having a number of reflectors arranged in vertical and horizontal arrays above a lightwell arranged to increase reflected solar insolation during certain periods in the solar day and to provide shading or blocking primarily during solar mid-day. The lightwell includes a daylighting distribution lens at its lower end. The daylighting system results in increased interior light levels with substantially reduced heat gain.
    Type: Grant
    Filed: November 19, 1987
    Date of Patent: April 11, 1989
    Inventor: Frank E. Terrill