Patents by Inventor Robert N. Norlie

Robert N. Norlie 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: 4268175
    Abstract: Tractor mounted mixing apparatus is disclosed including a mounting frame attachable to a three-point tractor hitch, a mixing drum rotatably mounted to the frame and having mechanism for rotatably driving the drum, and a scoop pivotally connected to the support frame and power operated to move a scoop bucket from a lowered position for scooping material off the ground and a raised position adjacent an opening in the mixing drum for loading the drum.
    Type: Grant
    Filed: February 7, 1980
    Date of Patent: May 19, 1981
    Inventors: Robert N. Norlie, Bruce D. Norlie