Patents by Inventor Einar C. Oftedal

Einar C. Oftedal 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: 4973203
    Abstract: A pick-up assembly for grain and other particulate material includes a particulate material pick-up head provided with an elongated narrow rectangular forwardly facing opening, a tubular discharge conduit extending rearward from the pick-up head, a main frame supporting the pick-up head and the discharge conduit rigidly with respect to each other, a pair of wheels rotatable on a single horizontal axis mounted to the frame at position toward the rear of the discharge conduit, and a handle rigidly mounted with respect to the frame to be behind and above the wheels. A ground supported flexible hose extends from the rear of the discharge conduit to a pneumatic grain conveyor.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: November 27, 1990
    Inventor: Einar C. Oftedal