Patents by Inventor Giuseppe Speggiorin

Giuseppe Speggiorin 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).

  • Hydrodynamic variator of velocity having radial pistons
    Patent number: 5228290
    Abstract: The improved hydrodynamic variator of velocity comprises a pump (3) having radial pistons and a hydromotor (4) also having radial pistons. At least the pump is arranged with a variable eccentricity and there is provided a central body (56) the latter having frontal distributors (30 and 31) which are placed in communication with the radial cylindrical cavities respectively of the pump and the hydromotor by means of the openings of the conduits (32 and 33). By varying the eccentricity of the pump, the rate of flow of the liquid in the pump is varied, thus causing a variation in the number of turns of the hydromotor.
    Type: Grant
    Filed: September 6, 1990
    Date of Patent: July 20, 1993
    Assignee: Var-Spe S.p.A.
    Inventor: Giuseppe Speggiorin