公开(公告)号：US20130026810A1

公开(公告)日：2013-01-31

申请号：US13189948

申请日：2011-07-25

申请人： Randall Walter Ojanen ,  Don C. Rowlett

发明人： Randall Walter Ojanen ,  Don C. Rowlett

IPC分类号： E21C35/19 ,  F16B43/02 ,  E21C35/18

CPC分类号： B28D1/188 ,  E21C35/183

摘要： A cutting tool assembly for use in impinging earth strata includes a holder containing a bore having an axial forward end, and the holder having a forward surface surrounding the bore at the axial forward end of the bore. The assembly also includes a cutting tool being rotatably contained within the bore of the holder, and the cutting tool having a rearwardly facing shoulder. The assembly further includes a protective member positionable between the cutting tool and the holder. The protective member has a first surface adjacent the rearwardly facing shoulder of the cutting tool and a second surface adjacent to the forward surface of the holder, wherein the first surface has a first hardness that is greater than a second hardness of the second surface. In one aspect, the second surface of the protective member is in direct contact with the forward surface of the holder. In another aspect, the first surface of the protective member is in direct contact with the rearwardly facing shoulder of the cutting tool.

摘要翻译： 一种用于撞击地层的切割工具组件包括一个夹持器，该夹具包含一个具有轴向前端的孔，该夹持器在孔的轴向前端具有围绕孔的前表面。 组件还包括可旋转地容纳在保持器的孔内的切割工具，并且切割工具具有向后的肩部。 组件还包括可定位在切割工具和保持器之间的保护构件。 保护构件具有邻近切割工具的朝后的肩部的第一表面和与保持器的前表面相邻的第二表面，其中第一表面具有大于第二表面的第二硬度的第一硬度。 在一个方面，保护构件的第二表面与保持器的前表面直接接触。 在另一方面，保护构件的第一表面与切削工具的朝后的肩部直接接触。

公开(公告)号：US20150035343A1

公开(公告)日：2015-02-05

申请号：US13959258

申请日：2013-08-05

申请人： Randall Walter Ojanen

发明人： Randall Walter Ojanen

IPC分类号： E21C35/183 ,  B28D1/18

CPC分类号： E21C35/183 ,  B28D1/186 ,  E21C25/22 ,  E21C2035/1816

摘要： A non-rotatable cutter bit for mining and construction operations having a central longitudinal axis extending therethrough includes an insert at one end. The insert has a central longitudinal axis and the apex is offset from the central longitudinal axis to provide an elongated rake face. With the insert mounted within the cutter body, the central longitudinal axis of the cutter body intersects with the apex such that the cutter body may be easily exchanged with conventional cutter bodies. The insert may also be mounted directly to the body without using an insert holder. The insert also has applications in oil and gas drilling operations.

摘要翻译： 用于采矿和施工作业的不可旋转切割钻头具有延伸穿过的中心纵向轴线，其中包括在一端的插入件。 插入件具有中心纵向轴线并且顶点偏离中心纵向轴线以提供细长的前刀面。 当插入件安装在刀体内时，切割器主体的中心纵向轴线与顶点相交，使得刀具主体可以容易地与传统刀具体更换。 插入件也可以直接安装到主体而不使用插入物夹持器。 该插入件还可用于石油和天然气钻井作业。

公开(公告)号：US09074471B2

公开(公告)日：2015-07-07

申请号：US13959258

申请日：2013-08-05

申请人： Randall Walter Ojanen

发明人： Randall Walter Ojanen

IPC分类号： E21C35/183 ,  B28D1/18 ,  E21C35/18

CPC分类号： E21C35/183 ,  B28D1/186 ,  E21C25/22 ,  E21C2035/1816

摘要： A non-rotatable cutter bit for mining and construction operations having a central longitudinal axis extending therethrough includes an insert at one end. The insert has a central longitudinal axis and the apex is offset from the central longitudinal axis to provide an elongated rake face. With the insert mounted within the cutter body, the central longitudinal axis of the cutter body intersects with the apex such that the cutter body may be easily exchanged with conventional cutter bodies. The insert may also be mounted directly to the body without using an insert holder. The insert also has applications in oil and gas drilling operations.

摘要翻译： 用于采矿和施工作业的不可旋转切割钻头具有延伸穿过的中心纵向轴线，其中包括在一端的插入件。 插入件具有中心纵向轴线并且顶点偏离中心纵向轴线以提供细长的前刀面。 当插入件安装在刀体内时，切割器主体的中心纵向轴线与顶点相交，使得刀具主体可以容易地与传统刀具体更换。 插入件也可以直接安装到主体而不使用插入物夹持器。 该插入件还可用于石油和天然气钻井作业。

公开(公告)号：US20120242136A1

公开(公告)日：2012-09-27

申请号：US13424310

申请日：2012-03-19

申请人： Randall Walter Ojanen

发明人： Randall Walter Ojanen

IPC分类号： E21C35/183 ,  E21C35/18

CPC分类号： E21C35/183 ,  E21C35/18

摘要： A cutting tool for use in impinging earth strata includes a cutting tool body having a head portion at an axial forward end, a collar portion axially rearward of the head portion, and a shank portion axially rearward of the collar portion at an axial rearward end, wherein the cutting tool body contains a first socket at the axial forward end thereof. The shank portion generally tapers in the axial rearward direction. The cutting tool also includes a hard cutting member affixed to the cutting tool body within the first socket. The hard cutting member includes an axial forward end and an axial rearward end. The hard cutting member also includes a superhard axial forward portion of the axial forward end thereof, wherein the superhard axial forward portion comprises a substrate and a layer of superhard material adhered to the substrate.

摘要翻译： 一种用于撞击地层的切削工具包括：切削工具主体，其具有在轴向前端的头部，在头部的轴向后方的轴环部分以及在轴向后端处的轴环部分的轴向后方的柄部， 其中所述切削工具主体在其轴向前端包含第一插座。 柄部分通常沿轴向向后方向逐渐变细。 切割工具还包括在第一插座内固定到切割工具主体的硬切割构件。 硬切割构件包括轴向前端和轴向后端。 硬切割构件还包括其轴向前端的超硬轴向前部，其中超硬轴向前部包括基底和附着到基底的超硬材料层。

公开(公告)号：US20200149397A1

公开(公告)日：2020-05-14

申请号：US16350407

申请日：2018-11-13

申请人： Randall Walter Ojanen

发明人： Randall Walter Ojanen

IPC分类号： E21C35/183 ,  E01C23/088

摘要： An improved rotating cutting bit used in a road resurfacing machine, wherein the cutting bit includes a metal shank and having a forward end, and wherein the forward end includes a bore or recess that is adapted to fixedly receive at least a portion of a point attack insert. The improvement comprises a head section; an axially aligned transitional intermediate section contiguous with the head section having a first diameter, d, and a sectional height, H1; and an axially aligned base section adjacent to the intermediate section having a second diameter, D; wherein d:H1 is greater than 1.0, the ratio of d:D is from 0.62 to 0.68, wherein the point attack insert has an overall height H and the ratio of H:D is less than 0.93.

公开(公告)号：USD659529S1

公开(公告)日：2012-05-15

申请号：US29402439

申请日：2011-09-23

申请人： Randall Walter Ojanen ,  Don Carlin Rowlett

设计人： Randall Walter Ojanen ,  Don Carlin Rowlett