Patents by Inventor Steven R. Burns

Steven R. Burns 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: 9839984
    Abstract: A method of making a cutting tap includes: providing an elongate tap body having an axial forward end, an axial rearward end and a central longitudinal axis; securing the axial rearward end of the tap body in a grinding machine; and forming in the axial forward end of the tap body a correction grind and a main flute in one continuous grinding operation. A cutting tap made by the invention is also provided.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: December 12, 2017
    Assignee: KENNAMETAL INC.
    Inventor: Steven R. Burns
  • Publication number: 20160045995
    Abstract: A method of making a cutting tap includes: providing an elongate tap body having an axial forward end, an axial rearward end and a central longitudinal axis; securing the axial rearward end of the tap body in a grinding machine; and forming in the axial forward end of the tap body a correction grind and a main flute in one continuous grinding operation. A cutting tap made by the invention is also provided.
    Type: Application
    Filed: August 14, 2014
    Publication date: February 18, 2016
    Inventor: Steven R. Burns
  • Patent number: 7950880
    Abstract: A cutting tool that includes an elongate body that has a forward end and a rearward end. The elongate body has a fluted portion that beginning near and extends in a rearward direction from the forward end. The fluted portion has a flute that defines a cutting edge. The flute presents a concave cutting face wherein the concave cutting face is defined by a first radius. The flute further presents a concave core surface adjacent to the concave cutting face wherein the concave core surface is defined by a second radius. The flute presents a convex heel surface adjacent to the concave core surface wherein the convex heel surface is defined by a fourth radius.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: May 31, 2011
    Assignees: Kennametal Inc., Yamawa Manufacturing Limited
    Inventors: Willard E. Henderer, Stephen M. George, Steven R. Burns, Sadayuki Akaki
  • Publication number: 20080095588
    Abstract: A cutting tool that includes an elongate body that has a forward end and a rearward end. The elongate body has a fluted portion that beginning near and extends in a rearward direction from the forward end. The fluted portion has a flute that defines a cutting edge. The flute presents a concave cutting face wherein the concave cutting face is defined by a first radius. The flute further presents a concave core surface adjacent to the concave cutting face wherein the concave core surface is defined by a second radius. The flute presents a convex heel surface adjacent to the concave core surface wherein the convex heel surface is defined by a fourth radius.
    Type: Application
    Filed: October 18, 2006
    Publication date: April 24, 2008
    Inventors: Willard E. Henderer, Stephen M. George, Steven R. Burns, Sadayuki Akaki
  • Patent number: 7144208
    Abstract: A low torque tap includes a shank portion with a driving square and a thread cutting portion. The thread cutting portion includes a threaded body with one or more asymmetrical straight flutes that run essentially parallel to a longitudinal axis of the tap. The thread cutting portion also includes one or more short angular flutes or spiral points and a tapered chamfer. For tapping steel alloys, the cutting edges of the straight flutes and the spiral points have a rake or chordal hook angle of between about 5 and 15 degrees. For tapping ferrous materials, the tap is made from molybdenum-enriched high-speed steel and may be coated with a wear-resistant, friction-reducing layer. A second, outer layer, such as molybdenum disulfide, may be applied over the wear-reducing layer for further reduction in friction. For tapping non-ferrous materials, the tap may be coated with a layer of material containing carbon.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: December 5, 2006
    Assignee: Kennametal Inc.
    Inventors: Willard E. Henderer, Alan L. Barrows, Steven R. Burns, Dennis J. Greene
  • Patent number: 5277393
    Abstract: A shelf-supporting assembly is provided with a vertical standard having a front and back portion, a shelf bracket extending outwardly from the vertical standard, a flange at a base portion of the shelf bracket extending inwardly in parallel with the front portion of the vertical standard, hook-shaped projection extending from the flange, spaced members defining gaps therebetween connecting the front portion of the vertical standard to the back portion, with the hook-shaped projections projecting through the gap defined between the spaced members, removably and supportably attaching the shelf bracket to the vertical standard.
    Type: Grant
    Filed: July 23, 1992
    Date of Patent: January 11, 1994
    Assignee: McCalla/Lackey Corporation
    Inventors: Roy C. Nicholson, Michael E. Barrett, Steven R. Burns, Robert W. Lackey