Patents by Inventor Frederick John Palmer

Frederick John Palmer 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).

  • Rotary cutting tool with blades having repeating, unequal indexing and helix angles
    Patent number: 10052700
    Abstract: A rotary cutting tool with a longitudinal axis includes a shank portion and a cutting portion defining a length of cut. The cutting portion includes a plurality of blades separated by flutes extending along the length of cut. A first blade forms a first helix angle with respect to the longitudinal axis at the cutting tip. A second blade adjacent the first blade forms a second, different helix angle with respect to the longitudinal axis at the cutting tip. A third blade adjacent the second blade forms a third, different helix angle with respect to the longitudinal axis at the cutting tip. The first, second and third helix angles deviate by at least 2 degrees. The cutting edges of the first, second and third blades have unequal indexing.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: August 21, 2018
    Assignee: KENNAMETAL INC.
    Inventors: Sergei Vladimir Boulakhov, Leonid Boris Sharivker, Danny Ray Davis, Frederick John Palmer
  • Rotary cutting tool with unequal indexing, alternating helix angle and varying helix angle along length of cut
    Patent number: 9862038
    Abstract: A rotary cutting tool with a longitudinal axis includes a shank portion and a cutting portion defining a length of cut. The cutting portion includes a plurality of blades separated by flutes extending along the length of cut. A first blade forms a first helix angle with respect to the longitudinal axis at the cutting tip. A second blade adjacent the first blade forms a second, different helix angle with respect to the longitudinal axis at the cutting tip. The cutting edge of the first blade is formed at a first distance with respect to the cutting edge of the second blade. A helix angle of at least one of the plurality of blades varies along the length of cut and a distance between cutting edges of the first and second blades varies along the length of cut.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: January 9, 2018
    Assignee: KENNAMETAL INC.
    Inventors: Danny Ray Davis, Frederick John Palmer
  • Cutting inserts and cutting tool systems having sinusoidal and helical cutting edges
    Patent number: 9700969
    Abstract: A cutting tool system is designed to have a combined sinusoidal-shaped and helical-shaped cutting edge formed by an assembly of aligned common cutting inserts each having a sinusoidal and helical cutting edge.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: July 11, 2017
    Assignee: KENNAMETAL INC.
    Inventors: X. Daniel Fang, Frederick John Palmer, Jean-Luc Dufour, David J. Wills
  • ROTARY CUTTING TOOL WITH BLADES HAVING REPEATING, UNEQUAL INDEXING AND HELIX ANGLES
    Publication number: 20170028482
    Abstract: A rotary cutting tool with a longitudinal axis includes a shank portion and a cutting portion defining a length of cut. The cutting portion includes a plurality of blades separated by flutes extending along the length of cut. A first blade forms a first helix angle with respect to the longitudinal axis at the cutting tip. A second blade adjacent the first blade forms a second, different helix angle with respect to the longitudinal axis at the cutting tip. A third blade adjacent the second blade forms a third, different helix angle with respect to the longitudinal axis at the cutting tip. The first, second and third helix angles deviate by at least 2 degrees. The cutting edges of the first, second and third blades have unequal indexing.
    Type: Application
    Filed: July 28, 2015
    Publication date: February 2, 2017
    Inventors: Sergei Vladimir Boulakhov, Leonid Boris Sharivker, Danny Ray Davis, Frederick John Palmer
  • ROTARY CUTTING TOOL WITH UNEQUAL INDEXING, ALTERNATING HELIX ANGLE AND VARYING HELIX ANGLE ALONG LENGTH OF CUT
    Publication number: 20160297012
    Abstract: A rotary cutting tool with a longitudinal axis includes a shank portion and a cutting portion defining a length of cut. The cutting portion includes a plurality of blades separated by flutes extending along the length of cut. A first blade forms a first helix angle with respect to the longitudinal axis at the cutting tip. A second blade adjacent the first blade forms a second, different helix angle with respect to the longitudinal axis at the cutting tip. The cutting edge of the first blade is formed at a first distance with respect to the cutting edge of the second blade. A helix angle of at least one of the plurality of blades varies along the length of cut and a distance between cutting edges of the first and second blades varies along the length of cut.
    Type: Application
    Filed: April 10, 2015
    Publication date: October 13, 2016
    Inventors: Danny Ray Davis, Frederick John Palmer
  • ENDMILL WITH CONVEX RAMPING EDGE
    Publication number: 20160271706
    Abstract: An endmill having a longitudinal cutting axis includes a cutting edge portion having: a nose corner adjacent to a cutting periphery of the endmill; a convex cutting edge having an end adjacent to the nose corner and an opposing end closer to the longitudinal cutting axis; a straight cutting edge having a first end adjacent to the opposing end of the convex cutting edge and a second end closer to the longitudinal cutting axis; and a convex ramping edge adjacent to the second end of the straight cutting edge.
    Type: Application
    Filed: March 18, 2015
    Publication date: September 22, 2016
    Inventors: Frederick John Palmer, X. Daniel Fang, Jean-Luc Dufour, David J. Wills
  • CUTTING INSERTS AND CUTTING TOOL SYSTEMS HAVING SINUSOIDAL AND HELICAL CUTTING EDGES
    Publication number: 20140169893
    Abstract: A cutting tool system is designed to have a combined sinusoidal-shaped and helical-shaped cutting edge formed by an assembly of aligned common cutting inserts each having a sinusoidal and helical cutting edge.
    Type: Application
    Filed: February 21, 2014
    Publication date: June 19, 2014
    Applicant: Kennametal Inc.
    Inventors: X. Daniel Fang, Frederick John Palmer, Jean-Luc Dufour, David J. Wills
  • Cutting inserts and cutting tool systems having sinusoidal and helical cutting edges
    Patent number: 8690494
    Abstract: A cutting tool system is designed to have a combined sinusoidal-shaped and helical-shaped cutting edge formed by an assembly of aligned common cutting inserts each having a sinusoidal and helical cutting edge.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: April 8, 2014
    Assignee: Kennametal Inc.
    Inventors: X. Daniel Fang, Frederick John Palmer, Jean-Luc Dufour, David J. Wills
  • CUTTING INSERTS AND CUTTING TOOL SYSTEMS HAVING SINUSOIDAL AND HELICAL CUTTING EDGES
    Publication number: 20130039705
    Abstract: A cutting tool system is designed to have a combined sinusoidal-shaped and helical-shaped cutting edge formed by an assembly of aligned common cutting inserts each having a sinusoidal and helical cutting edge.
    Type: Application
    Filed: August 10, 2011
    Publication date: February 14, 2013
    Applicant: TDY Industries, Inc.
    Inventors: X. Daniel Fang, Frederick John Palmer, Jean-Luc Dufour, David J. Wills