Patents by Inventor Giannetto Levizzari

Giannetto Levizzari 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).

  • Method and apparatus for testing the quality of cast iron pieces especially spheroidal cast-iron pieces
    Patent number: 4122723
    Abstract: Spheroidal cast iron pieces are tested by clamping each individual piece on a vibratory test rig together with a reference datum piece and using the measured amplitude and frequency of the system at resonance to derive an automatic indication, through an electronic logic circuit, of the quality of the piece under test compared with the reference piece.
    Type: Grant
    Filed: November 11, 1976
    Date of Patent: October 31, 1978
    Assignee: Fiat Societa per Azioni
    Inventors: Giannetto Levizzari, Giacomo Ruspa