Patents by Inventor George Ducis

George Ducis 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).

  • Aerator for vertical flaskless molding machine
    Patent number: 5857513
    Abstract: The assembly includes plural independently operated rotating shafts that contact the sand fill. As the fill is introduced into a first end of the vertical chute, the speed and rotational direction of the shafts with accompanying tines are controlled to regulate the feed rate and discharge of the fill to a molding chamber. This arrangement provides a more uniform density in the molding chamber which, in turn, results in improved quality in the cast product.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: January 12, 1999
    Assignee: Brunswick Industrial Inc.
    Inventors: Gary W. Calhoun, George Ducis