Patents by Inventor Richard A. De Pauw

Richard A. De Pauw 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).

  • Helical element rotor-axial flow combine
    Patent number: 3982549
    Abstract: A general purpose rasp bar carrying rotor construction for an axial flow-type harvester combine embodying a vaned impeller and a series of bars which cooperate with elements within the surrounding rotor casing for crop threshing and grain separation purposes in a novel and efficient manner. The rotor proper is generally of imperforate tubular cylindrical construction so that the crop material in its entirety is confined to the annulus which exists between the rotor and its casing.
    Type: Grant
    Filed: August 28, 1975
    Date of Patent: September 28, 1976
    Assignee: International Harvester Company
    Inventors: Richard A. De Pauw, David J. Gustafson