Patents Assigned to William F. Dunn
  • Automatic closing system for window blinds
    Patent number: 4644990
    Abstract: Improved method and apparatus for automatically moving a set of venetian type window blinds or similar louvered window coverings or partitions between open or closed positions in response to sensing a predetermined level of solar energy imposed on the window or opening across which the covering is to be disposed.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: February 24, 1987
    Assignee: William F. Dunn
    Inventors: James E. Webb, Sr., William F. Dunn