Patents by Inventor Bernhard Steenken

Bernhard Steenken 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).

  • Combination normal-sowing and fine-sowing wheel with integral stop
    Patent number: 4798271
    Abstract: A combination normal-sowing and fine-sowing wheel for a sowing machine, which has a fine-sowing wheel which can be attached to a sowing shaft by an interlocking and clamping connection and is mounted next to a normal-sowing wheel as a separate component in a sowing housing on the same sowing shaft. The fine-sowing wheel is coupled to the normal sowing-wheel by a coupling bolt that can be secured in two operating positions by stops and both the normal sowing wheel and the fine sowing wheel have a central bore and another bore the accommodates the coupling bolt. The stop in accordance with the present invention is in one piece.
    Type: Grant
    Filed: August 1, 1986
    Date of Patent: January 17, 1989
    Assignee: Amazonen Werke, H. Dreyer GmbH. Co. KG
    Inventors: Bernd Gattermann, Bernhard Steenken, Franz Grosse-Scharmann, Horst Muller
  • Seed planting machine
    Patent number: 4037759
    Abstract: A planting machine having a driven agitator mechanism (7) in the seed hopper (10) which has outlet openings (3) for the seeds, is provided with a magazine (12) disposed over the agitator mechanism (7) for holding seed disinfectant. The magazine (12) has outlet openings (15) and is equipped with a stirring mechanism (16).
    Type: Grant
    Filed: December 22, 1975
    Date of Patent: July 26, 1977
    Assignee: Amazonen-Werke H. Dreyer
    Inventors: Franz Grosse-Scharmann, Bernd Gattermann, Bernhard Steenken