Patents by Inventor Greg Fiegl

Greg Fiegl 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).

  • Spade drill insert having helical margins
    Patent number: 7011478
    Abstract: A spade drill insert and drilling tool assembly is provided wherein the lands of the spade drill insert have helical margins which provide increased stability during cutting operations. The margin may have a helical trailing side or leading side, a parallel helical margin, or may also include a gullet or flute adjacent the helical margin.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: March 14, 2006
    Assignee: Allied Machine & Engineering Corp.
    Inventors: Timothy G. Stokey, Greg Fiegl, Joseph P. Nuzzi, Wendell E. Mast
  • Spade drill insert having helical margins
    Publication number: 20050100419
    Abstract: A spade drill insert and drilling tool assembly is provided wherein the lands of the spade drill insert have helical margins which provide increased stability during cutting operations. The margin may have a helical trailing side or leading side, a parallel helical margin, or may also include a gullet or flute adjacent the helical margin.
    Type: Application
    Filed: February 17, 2004
    Publication date: May 12, 2005
    Inventors: Timothy Stokey, Greg Fiegl, Joseph Nuzzi, Wendell Mast