Patents by Inventor Walter Thomas GMELIN

Walter Thomas GMELIN 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).

  • APPARATUS FOR ELECTROCHEMICALLY MACHINING A METALLIC WORKPIECE
    Publication number: 20160045968
    Abstract: An apparatus for electrochemically machining a workpiece has a tool having a surface-machining part and a piercing part. The parts are relatively fixed and jointly movable. A power source oppositely polarizes the tool and the workpiece and an electrolyte is fed to the workpiece. The tool is pressed against the workpiece such that the surface-machining part forms a shaped surface on the workpiece and simultaneously the piercing part forms or enlarges a bore in the workpiece.
    Type: Application
    Filed: August 14, 2015
    Publication date: February 18, 2016
    Inventors: Richard KELLER, Walter Thomas GMELIN