公开(公告)号：US09085947B2

公开(公告)日：2015-07-21

申请号：US13871002

申请日：2013-04-26

Applicant: Kennametal Inc.

Inventor： Stephen M. George ,  Nicholas J. Paros

IPC: E21B10/58 ,  E21B10/00

CPC classification number: E21B10/58 ,  E21B10/003

Abstract: A rotary drill bit for engaging an earth strata material includes a cutting insert attached to an axial forward end of an elongate drill bit body. The cutting insert includes an elongate insert body rotatable about a central axis with a pair of symmetrical halves symmetrical about the central axis, each symmetrical half comprising: a leading face; a top surface having a primary relief surface; a web thinning gash extending between the leading face and the primary relief surface, the web thinning gash having a debris evacuation portion centrally disposed adjacent the central axis and a distal transition portion disposed adjacent the debris evacuation portion; a first leading cutting edge at the intersection of the leading face and the primary relief surface; and a second leading cutting edge at the intersection of the web thinning gash and the primary relief surface of the top surface.

Abstract translation: 用于接合地层材料的旋转钻头包括附接到细长钻头体的轴向前端的切削刀片。 所述切削刀片包括可围绕中心轴线旋转的细长插入体，所述插入体具有一对围绕所述中心轴线对称的对称半部，每个对称半部包括：前端面; 具有主浮雕表面的顶表面; 在引导面和主浮雕表面之间延伸的幅材间隙，所述幅材变薄缝隙具有邻近所述中心轴线居中设置的碎屑排出部分和邻近所述碎屑排出部分设置的远端过渡部分; 在前表面和主浮雕表面的交叉处的第一导向切割刃; 以及在幅材变薄沟槽和顶表面的主浮雕表面的交叉处的第二前沿切割刃。

公开(公告)号：US20140318870A1

公开(公告)日：2014-10-30

申请号：US13871002

申请日：2013-04-26

Applicant: KENNAMETAL INC.

Inventor： Stephen M. George ,  Nicholas J. Paros

IPC: E21B10/58

CPC classification number: E21B10/58 ,  E21B10/003

Abstract: A rotary drill bit for engaging an earth strata material includes a cutting insert attached to an axial forward end of an elongate drill bit body. The cutting insert includes an elongate insert body rotatable about a central axis with a pair of symmetrical halves symmetrical about the central axis, each symmetrical half comprising: a leading face; a top surface having a primary relief surface; a web thinning gash extending between the leading face and the primary relief surface, the web thinning gash having a debris evacuation portion centrally disposed adjacent the central axis and a distal transition portion disposed adjacent the debris evacuation portion; a first leading cutting edge at the intersection of the leading face and the primary relief surface; and a second leading cutting edge at the intersection of the web thinning gash and the primary relief surface of the top surface.

Abstract translation: 用于接合地层材料的旋转钻头包括附接到细长钻头体的轴向前端的切削刀片。 所述切削刀片包括可围绕中心轴线旋转的细长插入体，所述插入体具有一对围绕所述中心轴线对称的对称半部，每个对称半部包括：前端面; 具有主浮雕表面的顶表面; 在引导面和主浮雕表面之间延伸的幅材间隙，所述幅材变薄缝隙具有中心地邻近中心轴线设置的碎屑排出部分，以及邻近所述碎屑排出部分设置的远端过渡部分; 在前表面和主浮雕表面的交叉处的第一导向切割刃; 以及在幅材变薄沟槽和顶表面的主浮雕表面的交叉处的第二前沿切割刃。

公开(公告)号：US10859122B2

公开(公告)日：2020-12-08

申请号：US15686868

申请日：2017-08-25

Applicant: Kennametal Inc.

Inventor： Nicholas J. Paros ,  Robbie Bloom

IPC: F16D1/02 ,  F16D1/10 ,  E21D21/00

Abstract: An assembly which includes a first member with torque transmission elements, and a coupler which connects together, in a rotatably driving relationship, the first member and a second member. The coupler includes an intermediate section disposed between an axial forward end and an axial rearward end of the coupler, a forward section extending between the intermediate section and the axial forward end, and a rearward section extending between the intermediate section and the axial rearward end. The intermediate section includes torque transmission elements for engaging with the torque transmission elements of the first member, to facilitate transmission of torque from the first member to the coupler. The torque transmission elements of the coupler are automatically brought into a torque-transmitting relationship with the torque transmission elements of the first member when the coupler is engaged with the first member. Other variants and embodiments are broadly contemplated herein.

公开(公告)号：US20170204676A1

公开(公告)日：2017-07-20

申请号：US15000090

申请日：2016-01-19

Applicant: Kennametal Inc.

Inventor： Nicholas J. Paros ,  Nicholas J. Henry ,  Chad A. Swope

IPC: E21B10/62 ,  E21D20/00

CPC classification number: E21B10/62 ,  E21D20/003

Abstract: A coupler for use with a roof drill bit includes an elongate coupler body having a forward end for removably attaching the roof drill bit thereto and a rearward drive end. The elongate coupler body contains an interior bore therein and a dust port formed on an outer surface of the elongate coupler body, wherein the dust port is in communication with the interior bore.

公开(公告)号：US09382795B2

公开(公告)日：2016-07-05

申请号：US14483587

申请日：2014-09-11

Applicant: Kennametal Inc.

Inventor： Paul A. Bookhamer ,  Nicholas J. Paros ,  Luke A. Weber

IPC: E21C35/19

CPC classification number: E21C35/19

Abstract: A cutting tool mounting assembly adapted for attachment to a surface of a rotatable driving member of a cutting tool machine, includes: a tool holder having a key shank; a base attached to the surface of the rotatable driving member, the base having a mounting groove for receiving the key shank of the tool holder; a resilient retention structure configured to interact with the base and the tool holder to facilitate a friction fit between the tool holder and the base; and wherein tool holder includes a retention post configured for cooperating with the base for connecting the tool holder to the base. Also included is a dampening element configured between the tool holder and the base for reducing vibration therebetween.

Abstract translation: 一种适于附接到切割工具机的可旋转驱动构件的表面的切割工具安装组件，包括：具有钥匙柄的工具夹具; 基部，其安装在所述可旋转驱动构件的表面上，所述基座具有用于容纳所述工具架的所述键柄的安装槽; 弹性保持结构，其被构造成与所述基座和所述工具保持器相互作用，以便于所述工具架与所述基座之间的摩擦配合; 并且其中工具夹具包括保持柱，所述保持柱构造成用于与所述基座配合以将所述工具架连接到所述基座。 还包括构造在工具架和基座之间以减小它们之间振动的阻尼元件。

公开(公告)号：US20140360790A1

公开(公告)日：2014-12-11

申请号：US13910166

申请日：2013-06-05

Applicant: Kennametal Inc.

Inventor： Nicholas J. Paros ,  Brandon J. Kenno

IPC: E21B10/54

CPC classification number: E21B10/46

Abstract: A rotary drill bit includes an elongate drill bit body having a slot at a forward end, an edge protector received in the slot of the drill bit body and a cutting insert having a cutting edge. The edge protector includes: a first side having a first bottom edge and a first top edge; a second side opposed to the first side, the second side having a second bottom edge and a second top edge; and a bottom portion adjoining the first bottom edge of the first side and the second bottom edge of the second side. The cutting insert is received in the edge protector such that the cutting edge is recessed below one of the first top edge of the first side or the second top edge of the second side.

Abstract translation: 一种旋转钻头包括一个细长的钻头体，其具有在前端的槽，容纳在钻头体的槽中的边缘保护器和具有切削刃的切削刀片。 边缘保护器包括：具有第一底部边缘和第一顶部边缘的第一侧面; 与第一侧相对的第二侧，第二侧具有第二底部边缘和第二顶部边缘; 以及与第一侧的第一底边缘和第二侧的第二底边缘相邻的底部。 切削刀片被容纳在边缘保护器中，使得切削刃在第一侧的第一顶部边缘或第二侧的第二顶部边缘之一下方凹进。

公开(公告)号：US20140319898A1

公开(公告)日：2014-10-30

申请号：US13871012

申请日：2013-04-26

Applicant: KENNAMETAL INC.

Inventor： Nicholas J. Paros ,  Stephen M. George ,  Glenn W. Sheffler ,  Don C. Rowlett

IPC: E21C35/19

CPC classification number: E21C35/19 ,  E21C35/183

Abstract: A radial cutter bit includes a non-rotatable shank portion, a head portion including a tip region distal from the non-rotatable shank portion, and a cutting insert mounted at the tip region of the head portion. The cutting insert includes a body having a leading face, an opposing trailing face, a first side and a second side. The leading face has a central face portion, a first side face portion extending toward the first side of the body and a second face portion extending toward the second side of the body. The cutting insert further includes a top surface having a relief surface, a T-land surface extending between at least a portion of the leading face and the relief surface of the top surface and a cutting edge formed at the intersection of the T-land surface and the relief surface of the top surface.

Abstract translation: 径向切割刀头包括不可旋转柄部分，头部部分，其包括远离不可旋转柄部分的尖端区域，以及安装在头部的尖端区域处的切削刀片。 切削刀片包括具有前表面，相对的后表面，第一侧和第二侧的主体。 前导面具有中心面部分，朝向身体第一侧延伸的第一侧面部分和朝向身体第二侧延伸的第二面部分。 所述切削刀片还包括具有浮雕表面的顶表面，在所述前表面的至少一部分与所述顶表面的所述浮雕表面之间延伸的T形表面，以及形成在所述T形表面 和顶面的浮雕表面。

公开(公告)号：US10465512B2

公开(公告)日：2019-11-05

申请号：US15445041

申请日：2017-02-28

Applicant: Kennametal Inc.

Inventor： Brandon J. Kenno ,  Nicholas J. Paros ,  Chad Swope

IPC: E21C35/18 ,  E21C35/183

Abstract: A cutting tool rotatable about a central longitudinal axis of the cutting tool and configured for impingement upon a substrate includes an elongate cutting tool body having a head and a shank axially rearward of the head. The head includes a cutting member at an axial forward end thereof, a bolster portion axially rearward of the cutting member and a base portion at an axial rearward end of the head. In addition, the bolster portion includes a convex shape section and a generally cylindrical section contiguous with and axially rearward of the convex shape section.

公开(公告)号：US20190063504A1

公开(公告)日：2019-02-28

申请号：US15686868

申请日：2017-08-25

Applicant: Kennametal Inc.

Inventor： Nicholas J. Paros ,  Robbie Bloom

IPC: F16D1/10 ,  E21D21/00 ,  F16D1/02

Abstract: An assembly which includes a first member with torque transmission elements, and a coupler which connects together, in a rotatably driving relationship, the first member and a second member. The coupler includes an intermediate section disposed between an axial forward end and an axial rearward end of the coupler, a forward section extending between the intermediate section and the axial forward end, and a rearward section extending between the intermediate section and the axial rearward end. The intermediate section includes torque transmission elements for engaging with the torque transmission elements of the first member, to facilitate transmission of torque from the first member to the coupler. The torque transmission elements of the coupler are automatically brought into a torque-transmitting relationship with the torque transmission elements of the first member when the coupler is engaged with the first member. Other variants and embodiments are broadly contemplated herein.

公开(公告)号：US09422812B2

公开(公告)日：2016-08-23

申请号：US14513547

申请日：2014-10-14

Applicant: Kennametal Inc.

Inventor： Nicholas J. Paros ,  Chad A. Swope ,  Donald E. Keller

IPC: E21C35/183 ,  E21C35/18

CPC classification number: E21C35/18 ,  E21C35/183 ,  E21C35/197 ,  E21C2035/1803

Abstract: A cutting tool mounting assembly adapted for receiving a cutting tool includes a base having a bottom portion and a front portion that defines a receptacle having an inner wall and a bushing configured for receipt in the receptacle of the base. The bushing includes: a forward face defining an aperture for receiving the cutting tool; a shoulder generally opposite the forward face, the shoulder configured for cooperating with the front portion of the base; and a shank portion extending rearward from the shoulder, the shank portion having an outer surface configured for cooperating with the inner wall of the receptacle. A first elastomeric layer is positioned between the shoulder of the bushing and the front portion of the base and a second elastomeric layer is positioned between the outer surface of the shank portion and the inner wall of the receptacle.

Abstract translation: 适于接收切割工具的切割工具安装组件包括具有底部和底部的基部，该底部限定了具有内壁的插座和被配置为容纳在基座的容座中的衬套。 衬套包括：限定用于接收切割工具的孔的前面; 大致与前表面相对的肩部，所述肩部构造成与所述基部的前部配合; 以及从所述肩部向后延伸的柄部，所述柄部具有被配置为与所述容器的内壁配合的外表面。 第一弹性体层定位在衬套的肩部和基部的前部之间，第二弹性体层定位在柄部分的外表面和容器的内壁之间。