Patents by Inventor Eric P. Helsel

Eric P. Helsel 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).

  • Publication number: 20210062652
    Abstract: Mounting assemblies for cutting tools are disclosed that include a base and an adapter block. Mounting assemblies are provided with self-fixturing features to provide a desired mounting position and to restrict movement of the adapter block with respect to the base prior to bonding. The self-fixturing features provide the ability to perform repeatable and consistent bonding of the adapter block to the base.
    Type: Application
    Filed: August 27, 2019
    Publication date: March 4, 2021
    Inventors: James R. GEYER, Eric P. HELSEL, Daniel J. MOUTHAAN
  • Patent number: 10934840
    Abstract: Mounting assemblies for cutting tools are disclosed that include a base and an adapter block. Mounting assemblies are provided with self-fixturing features to provide a desired mounting position and to restrict movement of the adapter block with respect to the base prior to bonding. The self-fixturing features provide the ability to perform repeatable and consistent bonding of the adapter block to the base.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: March 2, 2021
    Assignee: KENNAMETAL INC.
    Inventors: James R. Geyer, Eric P. Helsel, Daniel J. Mouthaan
  • Patent number: 10030515
    Abstract: A mounting assembly adapted for attachment to a surface of a rotatable driving member of a cutting tool machine and adapted for receiving a cutting tool includes: a base having a bottom portion for attachment to the surface of the rotatable driving member and a front portion that defines a bore; and a tool holder configured for mounting to the base. The tool holder includes: a leading head region having a forward face that defines an aperture for receiving the cutting tool; a trailing shank region with a central longitudinal axis and having an axial forward end and an axial rearward end; and a mediate region intermediate of and contiguous with the leading head region and the trailing shank region. The trailing shank region includes an anti-rotation portion and a mounting retention portion.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: July 24, 2018
    Assignee: KENNAMETAL INC.
    Inventors: Luke A. Weber, Eric P. Helsel, Brian K. Lavely, Timothy A. LaMantia, Donald E. Keller
  • Patent number: 9695687
    Abstract: A block for use in a cutting assembly wherein the block includes a block body that contains a reservoir with coolant therein. The block body contains a top passage operative communication with the reservoir so as to receive coolant. The top passage has an axial forward top passage section terminating in an axial forward top passage end. The axial forward top passage section has an axial forward top passage section central longitudinal axis. The top passage further has an axial rearward top passage section terminating in an axial rearward top passage end. The axial rearward top passage section has axial rearward top passage section central longitudinal axis. The axial forward top passage section central longitudinal axis is disposed at an angle with respect to the axial rearward top passage section central longitudinal axis.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: July 4, 2017
    Assignee: KENNAMETAL INC.
    Inventors: Luke A. Weber, Eric P. Helsel, David S. Rose, Jeremiah L. Jonsrud
  • Publication number: 20160341040
    Abstract: A block for use in a cutting assembly wherein the block includes a block body that contains a reservoir with coolant therein. The block body contains a top passage operative communication with the reservoir so as to receive coolant. The top passage has an axial forward top passage section terminating in an axial forward top passage end. The axial forward top passage section has an axial forward top passage section central longitudinal axis. The top passage further has an axial rearward top passage section terminating in an axial rearward top passage end. The axial rearward top passage section has axial rearward top passage section central longitudinal axis. The axial forward top passage section central longitudinal axis is disposed at an angle with respect to the axial rearward top passage section central longitudinal axis.
    Type: Application
    Filed: May 20, 2015
    Publication date: November 24, 2016
    Inventors: Luke A. Weber, Eric P. Helsel, David S. Rose, Jeremiah L. Jonsrud
  • Publication number: 20160332269
    Abstract: A support block adapted for attachment to a surface of a rotatable driving member of a cutting tool machine and adapted for receiving a cutting tool includes a cold formed support block body that includes an axial rearward end having a mounting portion for attachment to the surface of the rotatable driving member and an axial forward end having a front surface. The support block also includes a bore defined by the front surface that is configured for receiving the cutting tool. A method of making the support block is also provided.
    Type: Application
    Filed: May 11, 2015
    Publication date: November 17, 2016
    Inventors: Beth A. Provins, Eric P. Helsel, Brian K. Lavely, William P. Prezlock, Luke A. Weber
  • Publication number: 20160237818
    Abstract: A mounting assembly adapted for attachment to a surface of a rotatable driving member of a cutting tool machine and adapted for receiving a cutting tool includes: a base having a bottom portion for attachment to the surface of the rotatable driving member and a front portion that defines a bore; and a tool holder configured for mounting to the base. The tool holder includes: a leading head region having a forward face that defines an aperture for receiving the cutting tool; a trailing shank region with a central longitudinal axis and having an axial forward end and an axial rearward end; and a mediate region intermediate of and contiguous with the leading head region and the trailing shank region. The trailing shank region includes an anti-rotation portion and a mounting retention portion.
    Type: Application
    Filed: February 12, 2015
    Publication date: August 18, 2016
    Inventors: Luke A. Weber, Eric P. Helsel, Brian K. Lavely, Timothy A. LaMantia, Donald E. Keller
  • Patent number: 8523290
    Abstract: A cutting tool holder-base assembly (399) has a base (400). The base (400) is adapted to attach to a surface (40) of a rotatable driving member (38). The tool holder-base assembly (399) includes a cutting tool holder (500) with head region (502) containing a cutting tool bore (506), and a shank region (504) with a distal end (524). The shank region (504) has an alignment notch (528) presenting an alignment surface (530) at the distal end (524). The assembly (399) further has a base (400), which contains a tool holder bore (418) and a transverse passage (430) intersecting the tool holder bore (418). There is an elongate pin (436) in the transverse passage (430). The elongate pin (436) has an exposed portion (440) thereof passing through the tool holder bore (418) wherein the cutting tool holder (500) is able to enter completely the tool holder bore (418) of the base (400) when the alignment surface (530) is in alignment with the exposed portion (440) of the elongate pin (436).
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: September 3, 2013
    Assignee: Kennametal Inc.
    Inventors: Eric P. Helsel, Donald Keller, Don Rowlett, Stephen Stiffler, Wayne Beach
  • Patent number: 8523289
    Abstract: A cutting bit retention assembly (399) that includes a cutting bit holder (500), which receives a cutting bit (58) and has shank (504) that extends into a bore (418) in a support (400). The shank section (504) of the cutting bit holder (500) presents a surface (530) defined by a notch (528) that selectively cooperates with a retention pin (670). A transverse bore (430) in the support (400) carries the retention pin (670). The retention pin (670) is selectively movable to any one of several positions. One position is a non-retaining position wherein the retention pin (670) does not engage the notch surface (530). Another position is a retaining position in which the retention pin (670) engages the notch surface (530) to urge the cutting bit holder into the cutting bit holder bore (418). Still another position is an ejecting position in which the retention pin (670) engages the notch surface (530) to urge the cutting bit holder (500) out of the cutting bit holder bore (418).
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: September 3, 2013
    Assignee: Kennametal Inc.
    Inventors: Eric P. Helsel, Stephen Stiffler, Donald Keller, Don Rowlett
  • Publication number: 20110089746
    Abstract: A cutting tool holder-base assembly (399) has a base (400). The base (400) is adapted to attach to a surface (40) of a rotatable driving member (38). The tool holder-base assembly (399) includes a cutting tool holder (500) with head region (502) containing a cutting tool bore (506), and a shank region (504) with a distal end (524). The shank region (504) has an alignment notch (528) presenting an alignment surface (530) at the distal end (524). The assembly (399) further has a base (400), which contains a tool holder bore (418) and a transverse passage (430) intersecting the tool holder bore (418). There is an elongate pin (436) in the transverse passage (430). The elongate pin (436) has an exposed portion (440) thereof passing through the tool holder bore (418) wherein the cutting tool holder (500) is able to enter completely the tool holder bore (418) of the base (400) when the alignment surface (530) is in alignment with the exposed portion (440) of the elongate pin (436).
    Type: Application
    Filed: April 7, 2010
    Publication date: April 21, 2011
    Applicant: Kennametal Inc.
    Inventors: Eric P. Helsel, Donald Keller, Don Rowlett, Stephen Stiffler, Wayne Beach
  • Publication number: 20110089747
    Abstract: A cutting bit retention assembly (399) that includes a cutting bit holder (500), which receives a cutting bit (58) and has shank (504) that extends into a bore (418) in a support (400). The shank section (504) of the cutting bit holder (500) presents a surface (530) defined by a notch (528) that selectively cooperates with a retention pin (670). A transverse bore (430) in the support (400) carries the retention pin (670). The retention pin (670) is selectively movable to any one of several positions. One position is a non-retaining position wherein the retention pin (670) does not engage the notch surface (530). Another position is a retaining position in which the retention pin (670) engages the notch surface (530) to urge the cutting bit holder into the cutting bit holder bore (418). Still another position is an ejecting position in which the retention pin (670) engages the notch surface (530) to urge the cutting bit holder (500) out of the cutting bit holder bore (418).
    Type: Application
    Filed: April 7, 2010
    Publication date: April 21, 2011
    Applicant: Kennametal Inc.
    Inventors: Eric P. Helsel, Stephen Stiffler, Donald Keller, Don Rowlett
  • Patent number: 7883154
    Abstract: A cutting tool assembly mounted on a rotating drum and having a base block, a wear sleeve and a cutting bit wherein a seal is located between the base block and wear sleeve is disclosed. A fluid passage spans from the rotating drum to a discharge location between the wear sleeve and the shank of the cutting bit. The fluid lubricates the shank of the cutting bit and bore of the wear sleeve allowing the cutting bit to rotate freely within the wear sleeve. Rotation of the cutting bit promotes even wear and long life of the bit.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: February 8, 2011
    Assignee: Kennametal Inc.
    Inventors: Wayne H. Beach, Stephen P. Stiffler, Eric P. Helsel, Donald E. Keller
  • Patent number: 7883153
    Abstract: A road milling drum assembly that is for use with a road milling machine. The road milling drum includes a core portion carrying a first road planing bit assembly wherein the core portion detachably connects to the road milling machine. The first road planing bit assembly has a first milling width. The assembly further including one of the following components selected from the group of: (1) a protective cover that detachably connects to the core portion and the road milling machine; or (2) a milling extension segment carrying a second road planing bit assembly wherein the milling extension segment detachably connects to the core portion and the road milling machine. The second road planing bit assembly has a second milling width wherein the road milling drum has a milling width equal to the sum of the first milling width and the second milling width.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: February 8, 2011
    Assignee: Kennametal Inc.
    Inventors: Stephen P. Stiffler, Eric P. Helsel, Donald E. Keller, Don C. Rowlett
  • Publication number: 20100052406
    Abstract: A cutting tool assembly mounted on a rotating drum and having a base block, a wear sleeve and a cutting bit wherein a seal is located between the base block and wear sleeve is disclosed. A fluid passage spans from the rotating drum to a discharge location between the wear sleeve and the shank of the cutting bit. The fluid lubricates the shank of the cutting bit and bore of the wear sleeve allowing the cutting bit to rotate freely within the wear sleeve. Rotation of the cutting bit promotes even wear and long life of the bit.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 4, 2010
    Inventors: Wayne H. Beach, Stephen P. Stiffler, Eric P. Helsel, Donald E. Keller
  • Publication number: 20090067927
    Abstract: A road milling drum assembly that is for use with a road milling machine. The road milling drum includes a core portion carrying a first road planing bit assembly wherein the core portion detachably connects to the road milling machine. The first road planing bit assembly has a first milling width. The assembly further including one of the following components selected from the group of: (1) a protective cover that detachably connects to the core portion and the road milling machine; or (2) a milling extension segment carrying a second road planing bit assembly wherein the milling extension segment detachably connects to the core portion and the road milling machine. The second road planing bit assembly has a second milling width wherein the road milling drum has a milling width equal to the sum of the first milling width and the second milling width.
    Type: Application
    Filed: September 10, 2007
    Publication date: March 12, 2009
    Inventors: Stephen P. Stiffler, Eric P. Helsel, Donald E. Keller, Don C. Rowlett
  • Patent number: 7475949
    Abstract: An edge cutter bit assembly for use in conjunction with a rotatable drum having an edge. The edge cutter bit assembly includes a holder that includes a plurality of bores wherein each bores carries a chisel cutter bit so that the chisel cutter bit is non-rotatable. The holder is oriented with respect to the drum so that at least a portion of each one of the cutter bits extends past the edge of the drum.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: January 13, 2009
    Assignee: Kennametal Inc.
    Inventors: Eric P. Helsel, Stephen P. Stiffler
  • Publication number: 20080111418
    Abstract: An edge cutter bit assembly for use in conjunction with a rotatable drum having an edge. The edge cutter bit assembly includes a holder that includes a plurality of bores wherein each bores carries a chisel cutter bit so that the chisel cutter bit is non-rotatable. The holder is oriented with respect to the drum so that at least a portion of each one of the cutter bits extends past the edge of the drum.
    Type: Application
    Filed: November 13, 2006
    Publication date: May 15, 2008
    Inventors: Eric P. Helsel, Stephen P. Stiffler
  • Patent number: D909165
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: February 2, 2021
    Assignee: KENNAMETAL INC
    Inventors: James R. Geyer, Eric P. Helsel, Brian K. Lavely