Patents by Inventor Carl Stutzman

Carl Stutzman 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).

  • Wind turbine
    Patent number: 4377372
    Abstract: A wind turbine is provided which consists of novel vanes horizontally oriented about a rotating hub connected to a vertical shaft. The vanes are free to pivot about two horizontal hinges such that two vanes connected to each other open when wind force is applied, and close when there is little or no wind force such that there is a minimal amount of resistance to the travel of the vanes when the vanes are against the wind.
    Type: Grant
    Filed: November 9, 1981
    Date of Patent: March 22, 1983
    Inventor: Carl Stutzman