Patents by Inventor Paul G. Nadeau

Paul G. Nadeau 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: 4907652
    Abstract: An agricultural implement is disclosed wherein soil packer coils are mounted directly to and between rearwardly extending harrow bars which, in turn, are connected to transversely extending frame members. The harrow tines are located behind the soil packer coils. Each coil is pivotally mounted between a respective pair of harrow arms by means of a pair of link arms which are also free to pivot about the axis of rotation of the coils so that the coils maintain uniform ground engaging contact independent of any up and down movement of the harrow arms.In one exemplary embodiment, the link arms are provided with axially shortened stub shafts which extend toward each other, generally coincident with the longitudinal axis of the coil, and generally perpendicular to the respective link arms. The stub shafts are receivable within apertures provided in support plates fixed at either end of the coil.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: March 13, 1990
    Assignee: Renn-Vertec Inc.
    Inventors: James W. Henry, Paul G. Nadeau