Patents by Inventor Giovanni Riggio

Giovanni Riggio 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).

  • Hybrid drive assembly for a vehicle, in particular a scooter
    Patent number: 7351265
    Abstract: A hybrid drive assembly (1) for a vehicle having at least one drive wheel (2), the drive assembly including an internal combustion engine (3); a transmission unit (5) interposed between a drive shaft (4) of the internal combustion engine (3) and a propeller shaft (6) connected angularly to the drive wheel (2), and in turn including a continuously variable transmission (7) having a drive pulley (10) connected angularly to the drive shaft (4) and a driven pulley (11), and a centrifugal clutch (8) having a hub (20) connected to the driven pulley, and a driven bell (26) connected to the propeller shaft (6); and an electric machine (32) having a rotor (35) integral with the bell (26) of the centrifugal clutch (8).
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: April 1, 2008
    Assignees: Universita'di Pisa, Piaggio&C. S.p.A.
    Inventors: Emilio Vitale, Francesco Frendo, Luigi Arnone, Maurizio Marcacci, Giovanni Riggio
  • Hybrid drive assembly for a vehicle, in particular a scooter
    Publication number: 20060063638
    Abstract: A hybrid drive assembly (1) for a vehicle having at least one drive wheel (2), the drive assembly including an internal combustion engine (3); a transmission unit (5) interposed between a drive shaft (4) of the internal combustion engine (3) and a propeller shaft (6) connected angularly to the drive wheel (2), and in turn including a continuously variable transmission (7) having a drive pulley (10) connected angularly to the drive shaft (4) and a driven pulley (11), and a centrifugal clutch (8) having a hub (20) connected to the driven pulley, and a driven bell (26) connected to the propeller shaft (6); and an electric machine (32) having a rotor (35) integral with the bell (26) of the centrifugal clutch (8).
    Type: Application
    Filed: December 16, 2003
    Publication date: March 23, 2006
    Inventors: Emilio Vitale, Francesco Frendo, Luigi Arnone, Maurizio Marcacci, Giovanni Riggio