Patents by Inventor Roger Barrie Etherington

Roger Barrie Etherington 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).

  • Plunge electromachining
    Patent number: 6562227
    Abstract: An electromachining apparatus includes a mandrel for supporting a workpiece next to a cutter mounted on an arbor. The workpiece is powered as an anode and the cutter is powered as a cathode, and a coolant is circulated therebetween. The cutter is rotated and plunge twisted into the workpiece to form a twisted slot therein, with adjacent ones of such slots forming twisted blanks therebetween. The individual blanks may then be subsequently machined to final shape such as an airfoil configuration.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: May 13, 2003
    Assignee: General Electric Company
    Inventors: Michael Scott Lamphere, Roger Barrie Etherington, Bin Wei
  • PLUNGE ELECTROMACHINING
    Publication number: 20030024825
    Abstract: An electromachining apparatus includes a mandrel for supporting a workpiece next to a cutter mounted on an arbor. The workpiece is powered as an anode and the cutter is powered as a cathode, and a coolant is circulated therebetween. The cutter is rotated and plunge twisted into the workpiece to form a twisted slot therein, with adjacent ones of such slots forming twisted blanks therebetween. The individual blanks may then be subsequently machined to final shape such as an airfoil configuration.
    Type: Application
    Filed: July 31, 2001
    Publication date: February 6, 2003
    Inventors: Michael Scott Lamphere, Roger Barrie Etherington, Bin Wei