Patents by Inventor Bertrand D'Argouges

Bertrand D'Argouges 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).

  • Patent number: 4668887
    Abstract: A stator for a small electric motor includes two permanent magnets mounted within a flux circulation frame by a single spring formed of a shaped spring steel rod compressed between the two permanent magnets and urging the two permanent magnets apart and toward respective portions of the frame.
    Type: Grant
    Filed: April 3, 1985
    Date of Patent: May 26, 1987
    Assignee: Ducelleeier et Cie
    Inventors: Bertrand D'Argouges, Pierre Dumas