Patents by Inventor Dennis James Broadway

Dennis James Broadway 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 regrindable cutting inserts
    Patent number: 9796027
    Abstract: A rotary cutting tool includes a cutter body having a plurality of insert-receiving pockets. Each pocket includes a bottom support surface, an axial support surface, a radial support surface, a top clearance surface and an intermediate clearance surface extending between the axial support surface and the top clearance surface. A cutting insert includes a helical top surface, a helical side surface, a side surface opposite the helical side surface, a pair of opposed side walls, a bottom surface, and a cutting edge formed at an intersection between the helical top surface and the helical side surface. The cutting insert further includes an undercut for accommodating the axial support surface, the top clearance surface and the intermediate clearance surface of the pocket when the cutting insert is mounted in the pocket.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: October 24, 2017
    Assignee: KENNAMETAL INC.
    Inventors: Mark Alan Francis, Dennis James Broadway
  • ROTARY CUTTING TOOL WITH REGRINDABLE CUTTING INSERTS
    Publication number: 20170072478
    Abstract: A rotary cutting tool includes a cutter body having a plurality of insert-receiving pockets. Each pocket includes a bottom support surface, an axial support surface, a radial support surface, a top clearance surface and an intermediate clearance surface extending between the axial support surface and the top clearance surface. A cutting insert includes a helical top surface, a helical side surface, a side surface opposite the helical side surface, a pair of opposed side walls, a bottom surface, and a cutting edge formed at an intersection between the helical top surface and the helical side surface. The cutting insert further includes an undercut for accommodating the axial support surface, the top clearance surface and the intermediate clearance surface of the pocket when the cutting insert is mounted in the pocket.
    Type: Application
    Filed: November 29, 2016
    Publication date: March 16, 2017
    Applicant: Kennametal Inc.
    Inventors: Mark Alan Francis, Dennis James Broadway
  • Rotary cutting tool with regrindable cutting inserts
    Patent number: 9505066
    Abstract: A rotary cutting tool includes a cutter body having a plurality of insert-receiving pockets. Each pocket includes a bottom support surface, an axial support surface, a radial support surface, a top clearance surface and an intermediate clearance surface extending between the axial support surface and the top clearance surface. A cutting insert includes a helical top surface, a helical side surface, a side surface opposite the helical side surface, a pair of opposed side walls, a bottom surface, and a cutting edge formed at an intersection between the helical top surface and the helical side surface. The cutting insert further includes an undercut for accommodating the axial support surface, the top clearance surface and the intermediate clearance surface of the pocket when the cutting insert is mounted in the pocket.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: November 29, 2016
    Assignee: KENNAMETAL INC.
    Inventors: Mark Alan Francis, Dennis James Broadway
  • ROTARY CUTTING TOOL WITH REGRINDABLE CUTTING INSERTS
    Publication number: 20160031020
    Abstract: A rotary cutting tool includes a cutter body having a plurality of insert-receiving pockets. Each pocket includes a bottom support surface, an axial support surface, a radial support surface, a top clearance surface and an intermediate clearance surface extending between the axial support surface and the top clearance surface. A cutting insert includes a helical top surface, a helical side surface, a side surface opposite the helical side surface, a pair of opposed side walls, a bottom surface, and a cutting edge formed at an intersection between the helical top surface and the helical side surface. The cutting insert further includes an undercut for accommodating the axial support surface, the top clearance surface and the intermediate clearance surface of the pocket when the cutting insert is mounted in the pocket.
    Type: Application
    Filed: August 1, 2014
    Publication date: February 4, 2016
    Applicant: KENNAMETAL INC.
    Inventors: Mark Alan Francis, Dennis James Broadway