Patents by Inventor Charles S. Nunamaker

Charles S. Nunamaker 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).

  • Patent number: 4640169
    Abstract: Resharpenable cemented carbide cutting tools which have been treated by ion implantation, as well as a method of making and using these tools, are described. Applicants have found that the benefits of the initial ion implantation on cemented carbide tool life will remain after sharpening of the tool.
    Type: Grant
    Filed: March 28, 1985
    Date of Patent: February 3, 1987
    Assignee: Westinghouse Electric Corp.
    Inventors: Robert E. Fromson, Ram Kossowsky, Charles S. Nunamaker
  • Patent number: 4486279
    Abstract: An apparatus and means for removing slivers and burrs from machined laminated components utilizes a salt solution, such as sodium nitrate, as the electrolyte which flows between a cathode and the laminated member which is connected to the positive terminal of an electrical power supply. The electrolyte is pumped into the gap between the cathode and laminated component and an electrical current flows between the laminated member and the cathode, removing metal which is deplated or released into the stream of electrolyte. The use of a salt solution, as opposed to an acidic solution, for the electrolyte fluid reduces the need for cleaning and neutralizing the acid remaining on the workpiece and, furthermore, reduces the potential hazards normally associated with the use of acids.
    Type: Grant
    Filed: May 12, 1983
    Date of Patent: December 4, 1984
    Assignee: Westinghouse Electric Corp.
    Inventors: Robert E. Fromson, Maria E. Skutch, Charles S. Nunamaker, Francis A. Scheda