Patents by Inventor Rodolfo Tapparo

Rodolfo Tapparo 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).

  • Hydraulically preloaded rolling stands
    Patent number: 5996388
    Abstract: A rolling cage to produce hot rolled bars, comprising at least one pair of rolling cylinders (12, 13) mounted on their respective stands (14, 15) in which a clearance (17) (processing gap) between said cylinders (12, 13) is adjusted by a system of screws (18) and lead screws (21), and which provides for a hydraulic pre-loading system of the same cylinders (12, 13) after adjusting the said clearance (17). According to the invention, the pre-loading system of said hydraulic cylinders (12, 13) comprises a multiple number of rods (27) crossing said stands (14, 15) and capable of a relative sliding motion. Each of said rods (27) is at one extremity (28) attached to a stand (14) while the opposite extremity is equipped with a piston (29) moving inside a hydraulic cylinder (30) firmly attached to the stand (15) opposite the former, so that said rods (27) also serve the function of opposing the rolling torque.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: December 7, 1999
    Assignee: Techint Compagnia Tecnica Internazionale S.p.A.
    Inventors: Gianfranco Mantovan, Bruno Monzio Compagnoni, Rodolfo Tapparo