Patents by Inventor M. N'Guyen U. Thuy

M. N'Guyen U. Thuy 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).

  • Process and device to control the electric braking of a direct current motor
    Patent number: 4401927
    Abstract: A direct current motor includes a chopper in series with the field coil of the motor to regulate the current flowing through the armature of the motor during electrical braking when the motor functions as a generator to produce current. In addition, a shunting device is connected to the field coil to regulate the current flowing through the coil so that it is maintained at a value less than the armature current.
    Type: Grant
    Filed: April 16, 1981
    Date of Patent: August 30, 1983
    Assignee: Societe CEM-Compagnie Electromecanique & CIE SNC.
    Inventor: M. N'Guyen U. Thuy