Patents by Inventor Tommaso Bertolotti

Tommaso Bertolotti 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).

  • Safety and default valve
    Patent number: 5996613
    Abstract: A safety and default valve in which a protective cup-shaped cap (11) incorporating a fixed lock (17) is housed freely rotatably on a control cap (16) with at least one engagement zone (17, 17A) for an ordinary operating wrench. A releasable engagement is provided between the bolt (19) of the lock (12) and a groove-like annular seat (18) in the control cap (16).
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: December 7, 1999
    Assignee: Cav. Uff. Giacomo Cimberio, S.p.A.
    Inventor: Tommaso Bertolotti