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1. 发明申请

US20080164070A1 Reinforcing overlay for matrix bit bodies 审中-公开
标题翻译：加强矩阵位体的覆盖
公开(公告)号：US20080164070A1
公开(公告)日：2008-07-10
申请号：US11650860
申请日：2007-01-08
申请人： Madapusi K. Keshavan , Kumar T. Kembaiyan , Alysia C. White , Anthony Griffo
发明人： Madapusi K. Keshavan , Kumar T. Kembaiyan , Alysia C. White , Anthony Griffo
IPC分类号： E21B10/46
CPC分类号： E21B10/54 , E21B10/55
摘要： A drill bit that includes a matrix bit body having a reinforcing overlay thereon and having at least one blade thereon; at least one cutter pocket disposed on the at least one blade; at least one cutter disposed in the at least one cutter pocket; and a braze material disposed between the at least one cutter and the at least one cutter pocket, wherein the reinforcing overlay comprises carbide particles and at least one binder and has a melting point greater than a melting point of the braze material is disclosed.
摘要翻译：一种钻头，其包括其上具有加强覆盖物并且在其上具有至少一个刀片的矩阵钻头体; 设置在所述至少一个叶片上的至少一个切割器袋; 至少一个切割器设置在所述至少一个切割器凹槽中; 以及布置在所述至少一个切割器和所述至少一个切割器袋之间的钎焊材料，其中所述增强覆盖物包含碳化物颗粒和至少一个粘合剂并且具有大于所述钎焊材料的熔点的熔点。

2. 发明授权

US07373997B2 Layered hardfacing, durable hardfacing for drill bits 失效
标题翻译：分层硬面，耐用的钻头硬化面
公开(公告)号：US07373997B2
公开(公告)日：2008-05-20
申请号：US11061305
申请日：2005-02-18
申请人： Kumar T. Kembaiyan , Madapusi K. Keshavan , Alysia C. White , Brian A. White
发明人： Kumar T. Kembaiyan , Madapusi K. Keshavan , Alysia C. White , Brian A. White
IPC分类号： E21B10/46 , C23C30/00
CPC分类号： E21B10/54
摘要： A drill bit having a bit body having at least one blade thereon, at least one cutter pocket disposed on the at least one blade, at least one cutter disposed in the at least one cutter pocket, hardfacing applied to at least a selected portion of the drill bit is shown and described. The hardfacing includes a first hardfacing layer disposed on the selected portion of the drill bit, a second hardfacing layer disposed on the first hardfacing layer, wherein the first hardfacing layer has a hardness different than a hardness of the second hardfacing layer.
摘要翻译：一种具有位于其上的至少一个刀片的钻头体的钻头，设置在所述至少一个刀片上的至少一个切割器凹槽，设置在所述至少一个切割器凹槽中的至少一个切割器，至少施加到所述至少一个刀片的选定部分的硬化面显示和描述钻头。表面硬化包括设置在钻头的选定部分上的第一表面硬化层，设置在第一表面硬化层上的第二表面硬化层，其中第一表面硬化层具有与第二表面硬化层的硬度不同的硬度。

3. 发明授权

US07770672B2 Layered hardfacing, durable hardfacing for drill bits 有权
标题翻译：分层硬面，耐用的钻头硬化面
公开(公告)号：US07770672B2
公开(公告)日：2010-08-10
申请号：US12120896
申请日：2008-05-15
申请人： Kumar T. Kembaiyan , Madapusi K. Keshavan , Alysia C. White , Brian A. White
发明人： Kumar T. Kembaiyan , Madapusi K. Keshavan , Alysia C. White , Brian A. White
IPC分类号： E21B10/46 , C23C30/00
CPC分类号： E21B10/54
摘要： A drill bit having a bit body having at least one blade thereon, at least one cutter pocket disposed on the at least one blade, at least one cutter disposed in the at least one cutter pocket, hardfacing applied to at least a selected portion of the drill bit is shown and described. The hardfacing includes a first hardfacing layer disposed on the selected portion of the drill bit, a second hardfacing layer disposed on the first hardfacing layer, wherein the first hardfacing layer has a hardness different than a hardness of the second hardfacing layer.
摘要翻译：一种具有位于其上的至少一个刀片的钻头体的钻头，设置在所述至少一个刀片上的至少一个切割器凹槽，设置在所述至少一个切割器凹槽中的至少一个切割器，至少施加到所述至少一个刀片的选定部分的硬化面显示和描述钻头。表面硬化包括设置在钻头的选定部分上的第一表面硬化层，设置在第一表面硬化层上的第二表面硬化层，其中第一表面硬化层具有与第二表面硬化层的硬度不同的硬度。

4. 发明申请

US20090120692A1 LAYERED HARDFACING, DURABLE HARDFACING FOR DRILL BITS 有权
标题翻译：层状硬化，钻石钻头的耐久性硬化
公开(公告)号：US20090120692A1
公开(公告)日：2009-05-14
申请号：US12120896
申请日：2008-05-15
申请人： Kumar T. Kembaiyan , Madapusi K. Keshavan , Alysia C. White , Brian A. White
发明人： Kumar T. Kembaiyan , Madapusi K. Keshavan , Alysia C. White , Brian A. White
IPC分类号： E21B10/46 , E21B10/26 , C23C30/00
CPC分类号： E21B10/54
摘要： A drill bit having a bit body having at least one blade thereon, at least one cutter pocket disposed on the at least one blade, at least one cutter disposed in the at least one cutter pocket, hardfacing applied to at least a selected portion of the drill bit is shown and described. The hardfacing includes a first hardfacing layer disposed on the selected portion of the drill bit, a second hardfacing layer disposed on the first hardfacing layer, wherein the first hardfacing layer has a hardness different than a hardness of the second hardfacing layer.
摘要翻译：一种具有位于其上的至少一个刀片的钻头体的钻头，设置在所述至少一个刀片上的至少一个切割器凹槽，设置在所述至少一个切割器凹槽中的至少一个切割器，至少施加到所述至少一个刀片的选定部分的硬化面显示和描述钻头。表面硬化包括设置在钻头的选定部分上的第一表面硬化层，设置在第一表面硬化层上的第二表面硬化层，其中第一表面硬化层具有与第二表面硬化层的硬度不同的硬度。

5. 发明授权

US07229077B2 Ordered elastomeric composite material 有权
标题翻译：有序的弹性复合材料
公开(公告)号：US07229077B2
公开(公告)日：2007-06-12
申请号：US10460345
申请日：2003-06-11
申请人： Madapusi K. Keshavan , Anthony Griffo , Alysia C. White , Robert Denton , Patricia Heel , Leroy N. Tinkham , Michael A. Siracki
发明人： Madapusi K. Keshavan , Anthony Griffo , Alysia C. White , Robert Denton , Patricia Heel , Leroy N. Tinkham , Michael A. Siracki
IPC分类号： F16J15/20
CPC分类号： F16J15/32 , F16J15/104 , Y10T428/218 , Y10T428/2929 , Y10T428/2935 , Y10T428/2938
摘要： Ordered elastomeric composites comprise an ordered arrangement of a number of first elastomeric phases distributed uniformly within a continuous matrix second elastomeric phase. The second phase can be formed from an elastomeric material that is relatively harder than an elastomeric material that is used to form the first phases. Each first phase can be in the form of a core having a defined length and diameter, and the second phase can be formed from a number of shells that each surround a respective core. In a preferred embodiment, the arrangement of cores and shells are aligned coaxially with one another to provide a cellular structure. Ordered elastomeric composites of this invention can be used to form part of or an entire elastomeric seal, e.g., in the form of an annular ring adapted for use in a rotary cone drill bit.
摘要翻译：有序的弹性体复合材料包括在连续基质第二弹性体相中均匀分布的多个第一弹性体相的有序排列。第二相可以由比用于形成第一相的弹性体材料相对更硬的弹性体材料形成。每个第一相可以是具有限定的长度和直径的芯的形式，并且第二相可以由各自围绕相应的芯的多个壳形成。在优选实施例中，芯和壳的布置彼此同轴对准以提供细胞结构。本发明的有序弹性体复合材料可用于形成一部分弹性体密封件，或整体弹性体密封件，例如适用于旋转锥形钻头的环形环形式。

6. 发明授权

US5715899A Hard facing material for rock bits 失效
标题翻译：用于岩石钻头的硬质材料
公开(公告)号：US5715899A
公开(公告)日：1998-02-10
申请号：US597476
申请日：1996-02-02
申请人： Dah-Ben Liang , Alysia C. White , Madapusi K. Keshavan
发明人： Dah-Ben Liang , Alysia C. White , Madapusi K. Keshavan
IPC分类号： B22F1/00 , B23K35/32 , C22C29/08 , C23C30/00 , E21B10/50 , B24D3/02
CPC分类号： E21B10/50 , B22F1/0014 , B23K35/327 , C22C29/08 , C23C30/005 , B22F2005/001 , B22F2998/00 , B22F2999/00
摘要： An improved hard facing for teeth and other surfaces of milled tooth rock bits comprises steel in the range of from 18 to 32 percent by weight, and filler in the range of from 68 to 82 percent by weight. The filler is cemented tungsten carbide and cast tungsten carbide free, and includes greater than 95 percent by weight single crystal monotungsten carbide particles. The single crystal monotungsten carbide particles have a particle size in the range of from 200 to 500 mesh and, preferably in the range of from 200 to 325.
摘要翻译：磨齿牙钻头的齿和其他表面的改进的硬面包括在18至32重量％范围内的钢和68至82重量％的填料。填料是固体碳化钨和铸造碳化钨，并且包括大于95重量％的单晶单晶碳化钨颗粒。单晶单晶碳化物颗粒的粒径在200至500目的范围内，优选在200至325的范围内。

7. 发明授权

US06607835B2 Composite constructions with ordered microstructure 有权
公开(公告)号：US06607835B2
公开(公告)日：2003-08-19
申请号：US09881931
申请日：2001-06-15
申请人： Zhigang Fang , Anthony Griffo , Alysia C. White
发明人： Zhigang Fang , Anthony Griffo , Alysia C. White
IPC分类号： B22F300
CPC分类号： C22C47/025 , B22F1/0003 , B22F7/02 , B22F7/06 , B22F2005/001 , B22F2005/002 , B22F2998/00 , B22F2998/10 , C22C1/05 , C22C1/051 , C22C47/00 , C22C47/04 , C22C47/068 , C22C47/14 , C22C49/00 , E21B10/52 , E21B10/56 , E21B10/567 , Y10T428/30 , C22C26/00 , C22C29/00 , B22F7/04 , B22F3/10 , B22F3/20
摘要： Composite constructions of this invention comprise a first structural phase formed from a hard material selected from the group consisting of cermet materials, polycrystalline diamond, polycrystalline cubic boron nitride, and mixtures thereof, and a second structural phase formed from a material that is relatively softer than that used to form the first structural phase. The material selected to form the second structural phase can be the same or different from that used to form the first structural phase. The second structural phase is positioned into contact with at least a portion of the first structural phase. The composite construction includes repeated structural units that each comprise an ordered microstructure of first and second structural phases. Composite constructions of this invention are prepared by first forming a green-state part into a desired shape having the structural material phases arranged to provide the desired ordered material microstructure, and then consolidating/sintering the part using by using consolidation techniques that are capable of retaining the desired oriented or order material microstructure.

8. 发明授权

US07666244B2 Hardfacing milled-tooth drill bits using super dense carbide pellets 有权
标题翻译：使用超密集的碳化物颗粒表面硬化磨齿钻头
公开(公告)号：US07666244B2
公开(公告)日：2010-02-23
申请号：US11175120
申请日：2005-07-05
申请人： Gregory T. Lockwood , Anthony Griffo , Dah-Ben Liang , Alysia C. White
发明人： Gregory T. Lockwood , Anthony Griffo , Dah-Ben Liang , Alysia C. White
IPC分类号： C22C29/08 , E21B10/50
CPC分类号： C23C30/005 , B23K35/0266 , B23K35/327 , E21B10/50
摘要： A hardfacing composition for a drill bit, including a carbide phase comprising from about 50% to about 75% by weight of the hardfacing composition of a combination of 16 to 40 mesh cemented tungsten carbide and 80 to 200 mesh super dense tungsten carbide cobalt particles, wherein about 5% to about 50% by weight of the carbide phase comprises the super dense tungsten carbide cobalt particles, and a binder alloy including about 25% to about 50% by weight of the hardfacing composition.
摘要翻译：用于钻头的表面硬化组合物，包括碳化物相，其包含约40重量％至约75重量％的硬质合金组合物，其为16至40目的硬质合金碳化钨和80至200目的超致密碳化钨钴颗粒的组合，其中约5重量％至约50重量％的碳化物相包含超致密碳化钨钴颗粒和包含占该组合物的约25重量％至约50重量％的粘合剂合金。

9. 发明授权

US07387178B2 Self relieving seal 失效
标题翻译：自卸密封
公开(公告)号：US07387178B2
公开(公告)日：2008-06-17
申请号：US11733731
申请日：2007-04-10
申请人： James L. Neville , James L. Larsen , Steven W. Peterson , Manikiran Bandi , Alan Lockstedt , Peter T. Cariveau , Alysia C. White , Anthony Griffo , Michael Siracki
发明人： James L. Neville , James L. Larsen , Steven W. Peterson , Manikiran Bandi , Alan Lockstedt , Peter T. Cariveau , Alysia C. White , Anthony Griffo , Michael Siracki
IPC分类号： E21B10/22
CPC分类号： E21B10/25 , Y10S277/926 , Y10S277/928
摘要： Self relieving seals of this invention comprise an elastomeric seal body having a first sealing surface and a second sealing surface for contact with respective drill bit sealing surfaces. The seal includes a pair of external surfaces that each extend along the seal body between the first and second sealing surfaces. The seal includes one or more relief ports that are disposed through the seal body and that have openings through each of the seal body external surfaces. The relief port can be specially configured, e.g., have different diameter sections of constant or variable dimensions, to provide a degree of control over pressure equalization through the seal body when the seal is loaded within the drill bit. The seal may include an element, e.g., solid, tubular, or porous, disposed within the relief port to provide a further desired degree of control over pressure equalization through the seal when the seal is loaded within the drill bit. Surface features, on the seal or the drill bit, can be provided to offset the relief port opening from the rock bit so that it is not blocked off. The seal can include a valve mechanism to provide a further degree of control over fluid passage through the relief port.
摘要翻译：本发明的自卸式密封件包括具有第一密封表面和用于与相应的钻头密封表面接触的第二密封表面的弹性体密封体。密封件包括一对外表面，每个外表面沿密封体在第一和第二密封表面之间延伸。密封件包括一个或多个卸载口，其设置成穿过密封体并具有通过每个密封体外表面的开口。泄压口可以被特别地构造，例如具有恒定或可变尺寸的不同直径部分，以在密封件被装载在钻头内时通过密封体提供对压力平衡的程度的控制。密封件可以包括设置在泄放口内的元件，例如固体，管状或多孔的，以便当密封件装载在钻头内时，通过密封件提供对压力平衡的进一步期望程度的控制。可以提供在密封件或钻头上的表面特征以将卸载口开口偏离岩石钻头，使得其不被堵塞。密封件可以包括阀机构，以进一步控制通过排放口的流体通道。

10. 发明授权

US06976548B2 Self relieving seal 有权
标题翻译：自卸密封
公开(公告)号：US06976548B2
公开(公告)日：2005-12-20
申请号：US10406065
申请日：2003-04-02
申请人： James L. Neville , James L. Larsen , Steven W. Peterson , Manikiran Bandi , Alan Lockstedt , Peter T. Cariveau , Alysia C. White , Anthony Griffo , Michael Siracki
发明人： James L. Neville , James L. Larsen , Steven W. Peterson , Manikiran Bandi , Alan Lockstedt , Peter T. Cariveau , Alysia C. White , Anthony Griffo , Michael Siracki
IPC分类号： E21B10/22 , E21B10/25
CPC分类号： E21B10/25 , Y10S277/926 , Y10S277/928
摘要： Self relieving seals of this invention comprise an elastomeric seal body having a first sealing surface and a second sealing surface for contact with respective drill bit sealing surfaces. The seal includes a pair of external surfaces that each extend along the seal body between the first and second sealing surfaces. The seal includes one or more relief ports that are disposed through the seal body and that have openings through each of the seal body external surfaces. The relief port can be specially configured, e.g., have different diameter sections of constant or variable dimensions, to provide a degree of control over pressure equalization through the seal body when the seal is loaded within the drill bit. The seal may include an element, e.g., solid, tubular, or porous, disposed within the relief port to provide a further desired degree of control over pressure equalization through the seal when the seal is loaded within the drill bit. Surface features, on the seal or the drill bit, can be provided to offset the relief port opening from the rock bit so that it is not blocked off. The seal can include a valve mechanism to provide a further degree of control over fluid passage through the relief port.
摘要翻译：本发明的自卸式密封件包括具有第一密封表面和用于与相应的钻头密封表面接触的第二密封表面的弹性体密封体。密封件包括一对外表面，每个外表面沿密封体在第一和第二密封表面之间延伸。密封件包括一个或多个卸载口，其设置成穿过密封体并具有通过每个密封体外表面的开口。泄压口可以被特别地构造，例如具有恒定或可变尺寸的不同直径部分，以在密封件被装载在钻头内时通过密封体提供对压力平衡的程度的控制。密封件可以包括设置在泄放口内的元件，例如固体，管状或多孔的，以便当密封件装载在钻头内时，通过密封件提供对压力平衡的进一步期望程度的控制。可以提供在密封件或钻头上的表面特征以将卸载口开口偏离岩石钻头，使得其不被堵塞。密封件可以包括阀机构，以进一步控制通过排放口的流体通道。

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