Patents by Inventor Dave W. Vradenburg

Dave W. Vradenburg 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).

  • Patent number: 4033270
    Abstract: Disclosed is a farm implement for incorporating chemicals sprayed on top of soil into a predetermined depth of the soil. The incorporator implement consists of a frame adapted to be suspended on a three point suspension mechanism of a tractor and two gangs of ground driven incorporator spiders, one in front of another. Each gang includes a forward row and a rearward row of the spiders with the forward row angled acutely to one side of the direction of travel of the implement and the rearward row angled acutely to the opposite side. In a second form we utilize gangs of incorporator spiders for post emergence chemical incorporation by arranging the incorporator spiders to work between the rows of plants and providing shield troughs for the plants. In a third form we utilize gangs of incorporator spiders disposed normal to the sloped banks of a narrow, single row, plant bed for post emergence incorporation.
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: July 5, 1977
    Inventors: Paul A. Bezzerides, Robert A. Bezzerides, Dave W. Vradenburg