专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20080245576A1 CUTTING ELEMENTS WITH INCREASED TOUGHNESS AND THERMAL FATIGUE RESISTANCE FOR DRILLING APPLICATIONS 有权
标题翻译：切削元件具有增加的韧性和耐热耐久性的钻孔应用
公开(公告)号：US20080245576A1
公开(公告)日：2008-10-09
申请号：US12059775
申请日：2008-03-31
申请人： Dah-Ben Liang , Gary R. Portwood , James C. Minikus , Amardeep Singh , Jonathan Bitler
发明人： Dah-Ben Liang , Gary R. Portwood , James C. Minikus , Amardeep Singh , Jonathan Bitler
IPC分类号： E21B10/08
CPC分类号： E21B10/52 , B22F2005/001 , C22C29/06 , C22C29/14 , C22C29/16 , E21B10/55
摘要： Cutting elements offering increased toughness and thermal fatigue resistance can be formed of a wear resistant material having coarse grains disposed in a binder matrix with a binder content of at least about 18% by weight. The coarse grains include grains of at least one selected from the group of a transition metal carbide, a transition metal boride, and transition metal nitride. The binder content and coarse grain size may be selected to provide a Rockwell A hardness of at least about 75 Ra or a wear number of at least about 1.5.
摘要翻译：具有提高韧性和耐热疲劳性的切割元件可以由具有粗颗粒的耐磨材料形成，所述耐磨材料具有设置在粘合剂基质中的粘合剂含量至少为约18重量％。粗晶粒包括选自过渡金属碳化物，过渡金属硼化物和过渡金属氮化物中的至少一种的晶粒。可以选择粘合剂含量和粗粒度以提供至少约75Ra的Rockwell A硬度或至少约1.5的磨损值。

2. 发明授权

US07124842B2 Cutting elements of gage row and first inner row of a drill bit 有权
标题翻译：量具行的切割元件和钻头的第一内排
公开(公告)号：US07124842B2
公开(公告)日：2006-10-24
申请号：US11241345
申请日：2005-09-29
申请人： Alan W. Lockstedt , Gary R. Portwood , Scott D. McDonough
发明人： Alan W. Lockstedt , Gary R. Portwood , Scott D. McDonough
IPC分类号： E21B10/36
CPC分类号： E21B10/5673 , E21B10/16 , E21B10/52
摘要： A rolling cone drill bit is provided that has gage inserts on the first row from the bit axis to cut to full gage diameter that have a cutting portion enhanced with a layer of super abrasive material. The gage cutting surface has a center axis that is canted to be more normal to the gave curve such that its point of contact at gage is away from the thinner portion of the layer of super abrasive material.
摘要翻译：提供了一种滚动锥钻头，其具有从钻头轴线到第一排的量具插入件，以切割成全量规直径，其具有通过一层超级研磨材料增强的切割部分。计量切割表面具有倾斜的中心轴线，以使其与给定曲线更正交，使得其量具上的接触点远离超级研磨材料层的较薄部分。

3. 发明授权

US06782959B2 Cutter element with non-linear, expanded crest 失效
标题翻译：切割元件具有非线性，扩展的顶点
公开(公告)号：US06782959B2
公开(公告)日：2004-08-31
申请号：US10436709
申请日：2003-05-13
申请人： James C. Minikus , Chris E. Cawthorne , Stephen C. Steinke , Gary R. Portwood , Gary E. Garcia , David P. Moran , Quan V. Nguyen
发明人： James C. Minikus , Chris E. Cawthorne , Stephen C. Steinke , Gary R. Portwood , Gary E. Garcia , David P. Moran , Quan V. Nguyen
IPC分类号： E21B1008
CPC分类号： E21B10/52 , B33Y80/00 , E21B10/16
摘要： A cutter element for a drill bit has a crest that defines a crest line. The crest can be non-rectilinear. The crest line of each cutter element defines an angle with respect to the axis of the rolling cone on which the cutter element is mounted. The cutter elements define different angles with respect to the cone axis and with respect to each other.
摘要翻译：用于钻头的切割元件具有限定顶部线的波峰。波峰可以是非直线的。每个切割器元件的顶部线相对于其上安装有切割器元件的滚动锥体的轴线形成一个角度。刀具元件相对于锥体轴线相对于彼此限定不同的角度。

4. 发明授权

US06460636B1 Drill bit inserts with variations in thickness of diamond coating 有权
标题翻译：钻头刀片，金刚石涂层厚度变化
公开(公告)号：US06460636B1
公开(公告)日：2002-10-08
申请号：US09465631
申请日：1999-12-17
申请人： Zhou Yong , Suprant J. Huang , Nathan R. Anderson , J. Daniel Belnap , Chris E. Cawthorne , Ronald K. Eyre , Madapusi K. Keshavan , Per I. Nese , Michael A. Siracki , Gary R. Portwood
发明人： Zhou Yong , Suprant J. Huang , Nathan R. Anderson , J. Daniel Belnap , Chris E. Cawthorne , Ronald K. Eyre , Madapusi K. Keshavan , Per I. Nese , Michael A. Siracki , Gary R. Portwood
IPC分类号： E21B1046
CPC分类号： E21B10/5673 , E21B10/56 , E21B10/573 , E21B10/5735 , E21B17/1092
摘要： A cutter element for use in a drill bit, comprising a substrate and a cutting layer. The substrate comprises a grip portion and an extension portion, where the grip portion has an insert axis and an extension portion including an interface surface having a first apex. The cutting layer is affixed to the interface surface and has a cutting surface having a second apex. The cutting layer is shaped such that when a plane passing through the first apex and lying parallel to the insert axis and normal to a radius from the insert axis, the plane divides the cutting layer into major and minor portions and the major portion has a major volume that is at least 60 percent of the total volume of said cutting layer. Alternative embodiments of the present invention include variations wherein the first and second apices do not coincide and wherein the interface surface of the substrate is not axisymmetric. Using these variations, cutter elements having sizeable variations in thickness are constructed.
摘要翻译：一种用于钻头的切割元件，包括基底和切割层。基板包括握持部分和延伸部分，其中握持部分具有插入轴线和包括具有第一顶点的界面的延伸部分。切割层固定在界面表面上并具有具有第二顶点的切割表面。切割层被成形为使得当平面穿过第一顶点并且平行于插入轴线平行并且平行于插入轴线的半径时，该平面将切割层分成主要和次要部分，并且主要部分具有主要部分体积为所述切割层的总体积的至少60％。本发明的替代实施例包括其中第一和第二顶点不重合并且其中基底的界面不是轴对称的变型。使用这些变型，构造了具有相当大的厚度变化的切割元件。

5. 发明授权

US06199645B1 Engineered enhanced inserts for rock drilling bits 失效
标题翻译：用于岩石钻头的工程增强型插入件
公开(公告)号：US06199645B1
公开(公告)日：2001-03-13
申请号：US09023264
申请日：1998-02-13
申请人： Nathan R. Anderson , J. Daniel Belnap , Chris E. Cawthorne , Ronald K. Eyre , Madapusi K. Keshavan , Per I. Nese , Michael A. Siracki , Gary R. Portwood
发明人： Nathan R. Anderson , J. Daniel Belnap , Chris E. Cawthorne , Ronald K. Eyre , Madapusi K. Keshavan , Per I. Nese , Michael A. Siracki , Gary R. Portwood
IPC分类号： E21B1046
CPC分类号： E21B17/1092 , E21B10/56
摘要： Enhanced inserts are formed having a cylindrical grip and a protrusion extending from the grip. An ultra hard material layer is bonded on top of the protrusion. The inserts are mounted on a rock bit and contact the earth formations off center. The ultra hard material layer is thickest at a critical zone which encompasses a major portion of the region of contact between the insert and the earth formation. Transition layers may also be formed between the ultra hard material layer and the protrusion so as to reduce the residual stresses formed on the interface between the ultra hard material and the protrusion.
摘要翻译：增强的插入件形成有具有圆柱形把手和从握柄延伸的突出部。超硬材料层结合在突起的顶部。插入件安装在岩石钻头上，并与中心的地层接触。超硬材料层在包括插入件和地层之间的接触区域的主要部分的临界区域是最厚的。也可以在超硬材料层和突起之间形成过渡层，以减少在超硬材料和突起之间的界面上形成的残余应力。

6. 发明授权

US5947216A Cutter assembly for rock bits with back support groove 失效
标题翻译：具有后支撑槽的岩石钻头的切割机组件
公开(公告)号：US5947216A
公开(公告)日：1999-09-07
申请号：US976913
申请日：1997-11-24
申请人： David Truax , Ghanshyam Rai , Stephen G. Southland , Gary R. Portwood
发明人： David Truax , Ghanshyam Rai , Stephen G. Southland , Gary R. Portwood
IPC分类号： E21B10/54 , E21B10/55 , E21B10/56 , E21B10/573 , E21B10/46
CPC分类号： E21B10/55 , E21B10/573
摘要： A synthetic diamond cutter is disclosed for rock bits having a diamond cutting face at one end of a body supporting the cutting face. A heel portion is formed by the body near the diamond cutting face. The heel portion forms a groove depression or notch about adjacent to a cutting tip of the diamond cutting face. The cutting tip, as a result of the groove, results in a greater rate of penetration of the diamond cutting face due to a reduction of drag as the cutter works in an earthen formation or against a suitable workpiece.
摘要翻译：公开了一种合成金刚石切割器，用于在支撑切割面的主体的一端具有金刚石切割面的岩石钻头。脚跟部分由金刚石切割面附近的身体形成。后跟部分在金刚石切割面的切割尖端附近形成凹槽凹陷或凹口。作为槽的结果，切割尖端导致金刚石切割面的更大的穿透速率，这是由于当切割器在土层或合适的工件中工作时，阻力的减小。

7. 发明申请

US20090065261A1 CUTTING ELEMENTS OF GAGE ROW AND FIRST INNER ROW OF A DRILL BIT 有权
标题翻译：切割元件的GAGE ROW和钻头的第一内部
公开(公告)号：US20090065261A1
公开(公告)日：2009-03-12
申请号：US12116119
申请日：2008-05-06
申请人： Alan W. Lockstedt , Gary R. Portwood , Scott D. McDonough
发明人： Alan W. Lockstedt , Gary R. Portwood , Scott D. McDonough
IPC分类号： E21B10/16
CPC分类号： E21B10/5673 , E21B10/16 , E21B10/52
摘要： A rolling cone drill bit is provided that has gage inserts on the first row from the bit axis to cut to full gage diameter that have a cutting portion enhanced with a layer of super abrasive material. The gage cutting surface has a center axis that is canted to be more normal to the gave curve such that its point of contact at gage is away from the thinner portion of the layer of super abrasive material.
摘要翻译：提供了一种滚动锥钻头，其具有从钻头轴线到第一排的量具插入件，以切割成全量规直径，其具有通过一层超级研磨材料增强的切割部分。计量切割表面具有倾斜的中心轴线，以使其与给定曲线更正交，使得其量具上的接触点远离超级研磨材料层的较薄部分。

8. 发明授权

US07367413B2 Cutting elements of gage row and first inner row of a drill bit 失效
标题翻译：量具行的切割元件和钻头的第一内排
公开(公告)号：US07367413B2
公开(公告)日：2008-05-06
申请号：US11494992
申请日：2006-07-28
申请人： Alan W. Lockstedt , Gary R. Portwood , Scott D. McDonough
发明人： Alan W. Lockstedt , Gary R. Portwood , Scott D. McDonough
IPC分类号： E21B10/36
CPC分类号： E21B10/5673 , E21B10/16 , E21B10/52
摘要： A rolling cone drill bit is provided that has gage inserts on the first row from the bit axis to cut to full gage diameter that have a cutting portion enhanced with a layer of super abrasive material. The gage cutting surface has a center axis that is canted to be more normal to the gage curve such that its point of contact at gage is away from the thinner portion of the layer of super abrasive material.
摘要翻译：提供了一种滚动锥钻头，其具有从钻头轴线到第一排的量具插入件，以切割成全量规直径，其具有通过一层超级研磨材料增强的切割部分。计量切割表面具有倾斜的中心轴线，以使其与量规曲线更正交，使得其量规上的接触点远离超级研磨材料层的较薄部分。

9. 发明授权

US06484826B1 Engineered enhanced inserts for rock drilling bits 有权
标题翻译：用于岩石钻头的工程增强型插入件
公开(公告)号：US06484826B1
公开(公告)日：2002-11-26
申请号：US09707614
申请日：2000-11-07
申请人： Nathan R. Anderson , J. Daniel Belnap , Chris E. Cawthorne , Ronald K. Eyre , Madapusi K. Keshavan , Per I. Nese , Michael A. Siracki , Gary R. Portwood
发明人： Nathan R. Anderson , J. Daniel Belnap , Chris E. Cawthorne , Ronald K. Eyre , Madapusi K. Keshavan , Per I. Nese , Michael A. Siracki , Gary R. Portwood
IPC分类号： E21B1056
CPC分类号： E21B17/1092 , E21B10/56
摘要： Enhanced inserts are formed having a cylindrical grip and a protrusion extending from the grip. An ultra hard material layer is bonded on top of the protrusion. The inserts are mounted on a rock bit and contact the earth formations off center. The ultra hard material layer is thickest at a critical zone which encompasses a major portion of the region of contact between the insert and the earth formation. Transition layers may also be formed between the ultra hard material layer and the protrusion so as to reduce the residual stresses formed on the interface between the ultra hard material and the protrusion.
摘要翻译：增强的插入件形成有具有圆柱形把手和从握柄延伸的突出部。超硬材料层结合在突起的顶部。插入件安装在岩石钻头上，并与中心的地层接触。超硬材料层在包括插入件和地层之间的接触区域的主要部分的临界区域是最厚的。也可以在超硬材料层和突起之间形成过渡层，以减少在超硬材料和突起之间的界面上形成的残余应力。

10. 发明授权

US06305483B1 Multi-piece rotary cone drill bit seal 有权
标题翻译：多片旋转锥钻头密封
公开(公告)号：US06305483B1
公开(公告)日：2001-10-23
申请号：US09283495
申请日：1999-04-01
申请人： Gary R. Portwood
发明人： Gary R. Portwood
IPC分类号： E21B1022
CPC分类号： E21B10/25 , Y10S277/944
摘要： Multi-piece seals of this invention include an annular seal body that is formed from an elastomeric energizing material, and that has a static seal surface along one surface and a contacting surface along another surface. A remaining seal portion in the form of a seal jacket or seal cap is connected to the seal body along the contacting surface to provide a dynamic sealing surface thereto. The seal jacket or cap is formed from a material that is different from the seal body and, more Specifically, from a material that displays improved wear resistance when compared to the seal body. A preferred seal jacket or cap material is a composite construction including a nonelastomeric polymer fabric that is impregnated with an elastomeric material. The seal jacket or cap is configured to connect with the seal body by mechanical attachment means independent of chemical cross-linked bonding. Multi-piece seals of this invention can be formed from two components, e.g., the seal body and the seal jacket or seal cap, or can be formed from three or more components, e.g, the seal body, seal jacket or cap, and one or more stiffening supporting members interposed therebetween.
摘要翻译：本发明的多片密封件包括由弹性体激励材料形成的环形密封体，并且沿着一个表面具有静态密封表面和沿着另一个表面的接触表面。密封套或密封帽形式的剩余密封部分沿着接触表面连接到密封体，以向其提供动态密封表面。密封套或盖由与密封体不同的材料形成，更确切地说，与与密封体相比显示改善的耐磨性的材料形成。优选的密封套或盖材料是包括用弹性体材料浸渍的非弹性聚合物织物的复合结构。密封套或盖被构造成通过独立于化学交联结合的机械附接装置与密封体连接。本发明的多片密封件可以由两个部件形成，例如密封体和密封套或密封盖，或者可以由三个或更多个部件形成，例如密封体，密封套或帽，以及一个或更多的加强支撑构件。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式