Patents by Inventor Sven G. W. Svenning

Sven G. W. Svenning 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: 4324528
    Abstract: This invention relates to an automatic regulating device for wind-powered propellers having blades which are connected to the propeller hub by torsion springs and are self-adjustable in dependence of the wind forces acting on the blades and returnable by action of the torsion springs. The distinctive feature of the invention is that the torsion spring connecting each blade with the propeller hub has a substantial portion of its length pre-stressed between two abutment points situated on a radius from the propeller axis and radially spaced from each other. The abutment points permit twisting the blade about its longitudinal axis from an initial position by wind forces against action of the prestressed torsion spring. The abutment points are both fixed either in relation to the blade or in relation to the hub.
    Type: Grant
    Filed: July 12, 1978
    Date of Patent: April 13, 1982
    Assignee: Sven Svenning Konsult AB
    Inventor: Sven G. W. Svenning