Patents by Inventor Dean A. Gravois

Dean A. Gravois 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).

  • Apparatus and method for removal of surface debris from crop rows
    Patent number: 5924495
    Abstract: An apparatus for cleaning debris from the surface of crop rows without substantially damaging the growing crop having a wheeled frame attachable to a pulling vehicle, the wheels positioned to avoid a growing crop, at least one journalled rotatable shaft attached to the frame, at least one brush positioned A each rotatable shaft, each brush having a plurality of bristles, and a power transfer member operatively connected to the rotatable shaft to transfer power from the pulling vehicle to the shaft.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: July 20, 1999
    Inventor: Dean A. Gravois