Patents by Inventor Francis Savelli

Francis Savelli 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).

  • Rotor for a small electric motor having reduced shaft portion to improve windings
    Patent number: 4587451
    Abstract: A rotor for a small electric motor, useful for example in a vehicle window raising device, has an armature carried by a shaft and having slots in which electrical conductors are wound and connected to a current collector. The shaft has grooves at both ends of the armature to a depth such as to permit the path of the electrical conductors passing between non-consecutive generally opposed slots during winding of the conductors at the bottom of the armature slots to be substantially rectilinear.
    Type: Grant
    Filed: June 26, 1984
    Date of Patent: May 6, 1986
    Assignee: Ducellier & Cie
    Inventor: Francis Savelli