Patents Assigned to Danny R. Williams
  • Sundial
    Patent number: 4102054
    Abstract: A sundial which is adjustable with respect to its mounting location to correct for its earth location in both longitude and latitude. The sundial is provided with solar time equation indicia and indicator to correct real solar time to mean solar time and includes further indicia to determine the calendar date based on sun declination.
    Type: Grant
    Filed: April 28, 1977
    Date of Patent: July 25, 1978
    Assignees: Danny R. Williams, Kenneth D. McPhail
    Inventor: Kemp S. Lewis