Patents by Inventor William R. Marrs

William R. Marrs 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).

  • Publication number: 20100212277
    Abstract: A crop harvester includes: a rotatable auger tube having a gathering section; flighting disposed in a spiral pattern on the outer surface of the gathering section so that, when the auger tube is rotated, the flighting moves material within a perimeter of the flighting laterally and creates a neutral zone behind the flighting that is generally free of material; and gathering fingers disposed in the neutral zone that, when the auger tube is rotated, extend beyond the perimeter of the flighting to gather the material, tuck the material toward the auger tube, and then retract within the perimeter of the flighting.
    Type: Application
    Filed: August 25, 2009
    Publication date: August 26, 2010
    Inventor: William R. Marrs