Patents by Inventor Giancarlo Grattarola

Giancarlo Grattarola 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).

  • Feeding and distributing device for rotary platforms, particularly for rotary-hearth furnaces
    Patent number: 6164891
    Abstract: A device for feeding and distributing loose material to rotary platforms, particularly for rotary-hearth furnaces, includes a material feed device, a material transfer device and a material gravity-pour duct. The device further includes a static device for the differentiated distribution of the material. The distribution front of the gravity-pour duct has an essentially curvilinear profile, the derivative of this curve being an increasing linear function of the radius of the rotary platform in the portion lying between the center of the platform and its perimeter.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: December 26, 2000
    Assignee: Demag Italimpianti S.p.A.
    Inventors: Giovanni De Marchi, Giancarlo Grattarola