Patents by Inventor François Sirolli

François Sirolli 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).

  • Switchgear apparatus contact assembly including slot and ferromagnetic insert for enhancing arc extinguishing characteristics
    Patent number: 6265685
    Abstract: A switch comprises a long, slender stationary contact means and a movable contact means moving between an open position and a closed position. The contact zone of the contact means is separated from the electrical connection zone by a slot which opens out on the side where the movable contact means are situated in the open position. The depth of the slot is sufficient so that, when opening takes place, the current lines passing through the contact means are curved and run approximately parallel to the flank of the slot. This arrangement prevents the foot of the electrical arc from being directed towards the free end of the contact means, away from the arc extinguishing chamber.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: July 24, 2001
    Assignee: Schneider Electric Industries SA
    Inventors: Michel Faure, François Sirolli, Serge Terpend