Patents by Inventor Gianpaolo Rossetti

Gianpaolo Rossetti 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).

  • Electromagnetic actuator of the type of a relay
    Patent number: 5327112
    Abstract: An electromagnetic actuator (1) of the type of a relay, having an armature (2) polarized by a permanent magnet (5) and a movable drive element (6) attracted by the armature (2) against a spring means (8), incorporates an electric current sensor consisting of a toroidal transformer (16) penetrated by at least one conductor (17) from an electric power supply line. The actuator (1) of this invention has a major advantage in that it can combine in a single device the functions of sensing differential currents on the line and of tripping off the break mechanism of a protection breaker, within a highly compact volume.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: July 5, 1994
    Assignee: Bticino S.p.A.
    Inventor: Gianpaolo Rossetti