Patents by Inventor Michael L. S. Bergey

Michael L. S. Bergey 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: 4291235
    Abstract: This invention relates generally to an improved windmill design that combines the blade and rotor support system with the electrical generating system in such a way as to simplify the windmill construction. Specifically, it eliminates the need for shafts, gears, and other coupling devices between the turbine blade system and the electrical generating system. In addition, the windmill design also includes a means for varying the pitch of the turbine blades automatically so as to provide near-optimum blade angles under varying wind conditions, and a tendency toward self-governing at high wind speeds. Furthermore, the blades are attached rigidly to the hub without the need for bearings or other mechanical couplings. Blade pitch changes are produced by twisting the blades elastically by forces produced by fixed weights. The effect of these features individually and in combination is to reduce the complexity of the wind turbine, the generating system, and their associated parts.
    Type: Grant
    Filed: February 26, 1979
    Date of Patent: September 22, 1981
    Inventors: Karl H. Bergey, Jr., Michael L. S. Bergey