Patents by Inventor Peter D. Freeman

Peter D. Freeman 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).

  • Road making apparatus
    Patent number: 4909663
    Abstract: An arrangement of a roller in combination with a draft vehicle comprising a draft frame, axle means supported by the draft frame, and roller supported by the axle means to allow rotational freedom about a central axis of a cylindrical shape of the roller, the arrangement being characterized in that the draft frame is connected to the draft vehicle by means constraining rotation of the draft frame relative to the draft vehicle about a vertical axis.
    Type: Grant
    Filed: December 24, 1987
    Date of Patent: March 20, 1990
    Inventor: Peter D. Freeman