Patents by Inventor Wayne S. Tonsfeldt

Wayne S. Tonsfeldt 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: 4301646
    Abstract: An apparatus for removing foliage from row crops including a frame adapted to be connected to a prime mover for movement in a forward direction. A plurality of rotors are rotatably attached to the frame and are disposed transversely to the forward direction of movement thereof. A mechanism is provided for selectively rotating the rotor. A first brush is attached to each rotor at a first place on the rotor, a second brush is attached to each rotor at a second place on the rotor, the second brush being spaced from the first brush. An adjusting structure is provided for selectively adjusting the relative positions of the first and second brushes on each rotor with respect to each other for adjusting for the width of rows of crops.
    Type: Grant
    Filed: August 4, 1980
    Date of Patent: November 24, 1981
    Inventors: Donald C. Gates, Wayne S. Tonsfeldt
  • Patent number: 4049058
    Abstract: A machine for lifting sugar beets from the soil, separating the soil and foreign matter from the sugar beets and elevating the sugar beets for loading on a transport vehicle. The machine has beet lifting wheels which lift the beets from the soil and direct the beets to link conveyors. The conveyors carry the beets to one end of a grab and cleaning roller assembly. The grab and cleaning roller assembly has a plurality of smooth and spiral ribbed rollers that are rotated to clean and move the beets the length of the roller assembly to a disc assembly. The disc assembly comprises a plurality of discs that are rotated in a direction to move the beets to the inlet area of a loading elevator. The loading elevator is independently supported on the ground with a wheel assembly. Adjusting structure is used to adjust the heighth of the elevator. Separate controlled hydraulic motors are operable to drive the conveyors, the disc assembly and the loading elevator.
    Type: Grant
    Filed: August 28, 1975
    Date of Patent: September 20, 1977
    Assignee: Alloway Manufacturing, Inc.
    Inventors: Fred W. Eisenhardt, Wayne S. Tonsfeldt
  • Patent number: 4027733
    Abstract: A machine for pulling weeds from rows having crops, as sugar beets. The machine has a transverse tool bar carrying a hitch. The hitch connects the tool bar to a tractor. A plurality of weed-pulling units are mounted on the tool bar. Each weed pulling unit has a pair of engaging pneumatic tires that are driven in opposite directions with a hydraulic motor. A pair of gauge and guide wheels connected to the tool bar locate the tool bar and weed pulling wheels above the surface of the ground so that the engaging rotating pneumatic tires will pull weeds from the rows of crops.
    Type: Grant
    Filed: August 28, 1975
    Date of Patent: June 7, 1977
    Inventors: Fred W. Eisenhardt, Wayne S. Tonsfeldt