Patents Assigned to John E. Wilks
  • Windmill
    Patent number: 4444543
    Abstract: A windmill having a gearbox, tail and wheel is disclosed in which a mast is secured to the windmill and is rotatable as a unit within a mast housing secured to the tower. A pull-out assembly exerts an axial downward force on a pull-out tube concentrically positioned within the mast. A mounting hub on the drive shaft supports the wheel at taper bearing surfaces. The individual sails are adjustably secured to one or more concentric, segmented rings attached to the mounting hub by radial spokes or braces.
    Type: Grant
    Filed: January 5, 1981
    Date of Patent: April 24, 1984
    Assignee: John E. Wilks
    Inventors: John E. Wilks, Jesse E. Hawley