Patents by Inventor Cesar L. Nunez

Cesar L. Nunez 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).

  • Variable speed electric induction motors without brushes
    Patent number: 4500826
    Abstract: A variable speed induction motor includes a photo-electric cell which controls the current delivered the rotor induction coils. The control is effectuated by the use of controlled diodes, the control electrodes of which are electrically connected to the photo-electric cell. The resistance of the photo-electric cell can be varied by an external, operator-controlled light source. Thus, the speed of the motor, which is proportional to the current in the induction coils, is controlled by the operator through the use of the light source.
    Type: Grant
    Filed: June 14, 1983
    Date of Patent: February 19, 1985
    Inventors: Fausto L. Espinosa, Cesar L. Nunez