Patents by Inventor Fabio Nogueira Leao

Fabio Nogueira Leao 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).

  • Electrical discharge machining
    Patent number: 9707637
    Abstract: A method for electrical discharge machining a workpiece includes the steps of: presenting an elongate electrode to the workpiece with a spark gap therebetween; flowing a dielectric fluid in the gap; eroding the workpiece by electrical discharge between the tip of the electrode and the workpiece; displacing the electrode in a direction aligned with the long axis of the electrode to maintain the gap as the electrode wears and the workpiece is eroded; and simultaneously with the displacement, producing vibratory movement of the electrode, the vibratory movement being aligned with the long axis of the electrode.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: July 18, 2017
    Assignee: ROLLS-ROYCE plc
    Inventors: Fabio Nogueira Leao, Alexander Xidacis, Martyn Cuttell
  • ELECTRICAL DISCHARGE MACHINING
    Publication number: 20170106462
    Abstract: A method for electrical discharge machining a workpiece includes the steps of: presenting an elongate electrode to the workpiece with a spark gap therebetween; flowing a dielectric fluid in the gap; eroding the workpiece by electrical discharge between the tip of the electrode and the workpiece; displacing the electrode in a direction aligned with the long axis of the electrode to maintain the gap as the electrode wears and the workpiece is eroded; and simultaneously with the displacement, producing vibratory movement of the electrode, the vibratory movement being aligned with the long axis of the electrode.
    Type: Application
    Filed: October 25, 2016
    Publication date: April 20, 2017
    Applicant: ROLLS-ROYCE plc
    Inventors: Fabio Nogueira LEAO, Alexander XIDACIS, Martyn CUTTELL
  • Electrical discharge machining
    Patent number: 9511434
    Abstract: A method for electrical discharge machining a workpiece includes the steps of: presenting an elongate electrode to the workpiece with a spark gap therebetween; flowing a dielectric fluid in the gap; eroding the workpiece by electrical discharge between the tip of the electrode and the workpiece; displacing the electrode in a direction aligned with the long axis of the electrode to maintain the gap as the electrode wears and the workpiece is eroded; and simultaneously with the displacement, producing vibratory movement of the electrode, the vibratory movement being aligned with the long axis of the electrode.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: December 6, 2016
    Assignee: ROLLS-ROYCE PLC
    Inventors: Fabio Nogueira Leao, Alexander Xidacis, Martyn Cuttell
  • ELECTRICAL DISCHARGE MACHINING
    Publication number: 20130248495
    Abstract: A method for electrical discharge machining a workpiece includes the steps of: presenting an elongate electrode to the workpiece with a spark gap therebetween; flowing a dielectric fluid in the gap; eroding the workpiece by electrical discharge between the tip of the electrode and the workpiece; displacing the electrode in a direction aligned with the long axis of the electrode to maintain the gap as the electrode wears and the workpiece is eroded; and simultaneously with the displacement, producing vibratory movement of the electrode, the vibratory movement being aligned with the long axis of the electrode.
    Type: Application
    Filed: September 27, 2011
    Publication date: September 26, 2013
    Applicant: ROLLS-ROYCE PLC
    Inventors: Fabio Nogueira Leao, Alexander Xidacis, Martyn Cuttell