Patents by Inventor Rudolf Gehrke

Rudolf Gehrke 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).

  • Mechanism for discharging granular material
    Patent number: 4646941
    Abstract: Mechanism for discharging granular material, especially seed and fertilizer, and having a bin and seed-flow regulators that variable amounts of material can be supplied to the ground through, whereby a sensor that detects the amount of material or number of grains of material discharged through that device is positioned in the vicinity of at least one flow regulator. To improve the sensor's detection of the amount or number of grains of material, a flow accelerator (8) accelerates the grains (22) of material toward the sensor (15) between the flow regulator and the sensor (FIG. 1).
    Type: Grant
    Filed: April 15, 1985
    Date of Patent: March 3, 1987
    Assignee: Amazonen Werke H. Dreyer GmbH & Co. KG
    Inventors: Franz Grosse-Scharmann, Bernd Gattermann, Rudolf Gehrke