Patents by Inventor Gilberto Cazzani

Gilberto Cazzani 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).

  • Extrusion die for plastic material
    Patent number: 4741686
    Abstract: An extrusion die having an extrusion slit defined by two lips one of which is flexible. A plurality of thrust members are disposed very close to one another and bear against the flexible lip. A drive motor is individual to each thrust member for rotating each thrust member to move the flexible lip toward or away from the other lip. A universal joint directly connects an output shaft of each motor to its respective thrust member. The output shafts are at oblique angles to their respective thrust members and some of the output shafts are disposed at substantial angles to others of the output shafts, whereby the motors are staggered.
    Type: Grant
    Filed: January 12, 1987
    Date of Patent: May 3, 1988
    Assignee: Omipa Italia S.N.C. Di Cazzani Gilberto & C.
    Inventors: Gilberto Cazzani, Luigi Macchi