Patents by Inventor Giovanni Foia

Giovanni Foia 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 to check the state of wear in a covering fabric of a driving belt
    Patent number: 5307672
    Abstract: A driving belt (2) operatively mounted on at least a first (3a) and second (4) pulleys electrically insulated from each other, is provided with an electrically conductive covering fabric acting in contact relationship with the pulleys. By applying an electric voltage to the pulleys (3a, 4) the electric resistance value offered by the belt (2) is detected and this value is compared with a reference value to which a given degree of wear of the belt corresponds. When the detected resistance value is greater than the reference value, a danger signal is emitted. The danger signal is inhibited during the belt operation and during a predetermined waiting time starting from the moment of the belt stopping in order to avoid the resistance detection to be altered by electrostatic charges present on one of the pulleys (3a, 4) and/or the high temperature in the vicinity of the belt (2).
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: May 3, 1994
    Assignee: Pirelli Transmissioni Industriali S.p.A.
    Inventors: Vincenzo Macchiarulo, Giovanni Foia