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1. 发明授权

US07845059B2 Method of forming impregnated diamond cutting structures 有权
标题翻译：形成浸渍金刚石切割结构的方法
公开(公告)号：US07845059B2
公开(公告)日：2010-12-07
申请号：US12021131
申请日：2008-01-28
申请人： Gregory T. Lockwood , Thomas W. Oldham , Anthony Griffo , Madapusi K. Keshavan , David A. Conroy
发明人： Gregory T. Lockwood , Thomas W. Oldham , Anthony Griffo , Madapusi K. Keshavan , David A. Conroy
IPC分类号： B23P25/00 , B22F3/12
CPC分类号： C22C26/00 , B22F2005/001 , C22C2026/006 , E21B10/46 , Y10T29/49885
摘要： An insert for a drill bit that includes diamond particles disposed in a matrix material, wherein the diamond particles have a contiguity of 15% or less is disclosed. A method of forming a diamond-impregnated cutting structure, that includes loading a plurality of substantially uniformly coated diamond particles into a mold cavity, pre-compacting the substantially uniformly coated diamond particles using a cold-press cycle, and heating the compacted, substantially uniformly coated diamond particles with a matrix material to form the diamond impregnated cutting structure is also disclosed.
摘要翻译：一种用于钻头的插入件，其包括设置在基体材料中的金刚石颗粒，其中所述金刚石颗粒的接缝度为15％以下。一种形成金刚石浸渍的切割结构的方法，其包括将多个基本均匀涂覆的金刚石颗粒加载到模具腔中，使用冷压循环对大致均匀涂覆的金刚石颗粒进行预压实，并加热压实的基本均匀的还公开了具有基质材料以形成金刚石浸渍切割结构的涂覆金刚石颗粒。

2. 发明授权

US08893828B2 High strength infiltrated matrix body using fine grain dispersions 有权
标题翻译：高强度渗透基体使用细粒分散体
公开(公告)号：US08893828B2
公开(公告)日：2014-11-25
申请号：US12949290
申请日：2010-11-18
申请人： Gregory T. Lockwood , Madapusi K. Keshavan , Anthony Griffo
发明人： Gregory T. Lockwood , Madapusi K. Keshavan , Anthony Griffo
IPC分类号： E21B10/36 , E21B10/46 , B29C43/00 , E21B10/573 , C22C1/10 , B22F5/00 , B29K503/04
CPC分类号： E21B10/573 , B22F2005/001 , B29C43/003 , B29K2503/04 , C22C1/1068 , E21B10/46
摘要： A drill bit may include a bit body having a plurality of blades extending radially therefrom and at least one cutting element for engaging a formation disposed on at least one of the plurality of blades. The bit body has a continuous infiltration binder and a plurality of carbide particles dispersed in the continuous infiltration binder, wherein at least a portion of the plurality of carbide particles and at least a portion of the continuous infiltration binder form a first carbide matrix region, and wherein the plurality of carbide particles forming the first carbide matrix region have an average grain sizes of less than about 44 microns.
摘要翻译：钻头可以包括具有从其径向延伸的多个叶片的钻头体和用于接合布置在多个叶片中的至少一个上的结构的至少一个切割元件。钻头体具有连续渗透粘合剂和分散在连续渗透粘合剂中的多个碳化物颗粒，其中多个碳化物颗粒的至少一部分和连续渗透粘合剂的至少一部分形成第一碳化物基质区域，以及其中形成所述第一碳化物基质区域的所述多个碳化物颗粒的平均粒度小于约44微米。

3. 发明申请

US20110120781A1 HIGH STRENGTH INFILTRATED MATRIX BODY USING FINE GRAIN DISPERSIONS 有权
标题翻译：使用精细粒度分布的高强度渗透矩阵体
公开(公告)号：US20110120781A1
公开(公告)日：2011-05-26
申请号：US12949290
申请日：2010-11-18
申请人： Gregory T. Lockwood , Madapusi K. Keshavan , Anthony Griffo
发明人： Gregory T. Lockwood , Madapusi K. Keshavan , Anthony Griffo
IPC分类号： E21B10/36 , B29C43/52 , B29C67/20
CPC分类号： E21B10/573 , B22F2005/001 , B29C43/003 , B29K2503/04 , C22C1/1068 , E21B10/46
摘要： A drill bit may include a bit body having a plurality of blades extending radially therefrom, the bit body comprising a continuous infiltration binder and a plurality of carbide particles dispersed in the continuous infiltration binder, wherein at least a portion of the plurality of carbide particles and at least a portion of the continuous infiltration binder form a first carbide matrix region, wherein the plurality of carbide particles forming the first carbide matrix region have an average grain sizes of less than about 44 microns; and at least one cutting element for engaging a formation disposed on at least one of the plurality of blades.
摘要翻译：钻头可以包括具有从其径向延伸的多个叶片的钻头体，钻头体包括连续渗透粘合剂和分散在连续渗透粘结剂中的多个碳化物颗粒，其中多个碳化物颗粒的至少一部分和所述连续渗透粘合剂的至少一部分形成第一碳化物基质区域，其中形成所述第一碳化物基质区域的所述多个碳化物颗粒的平均粒度小于约44微米; 以及用于接合设置在所述多个叶片中的至少一个叶片上的地层的至少一个切割元件。

4. 发明授权

US07475743B2 High-strength, high-toughness matrix bit bodies 有权
标题翻译：高强度，高韧性矩阵钻头体
公开(公告)号：US07475743B2
公开(公告)日：2009-01-13
申请号：US11343225
申请日：2006-01-30
申请人： Dah-Ben Liang , Anthony Griffo , Thomas W. Oldham , Gregory T. Lockwood
发明人： Dah-Ben Liang , Anthony Griffo , Thomas W. Oldham , Gregory T. Lockwood
IPC分类号： E21B10/00
CPC分类号： E21B10/46 , B22F2005/002 , C22C29/08 , E21B10/55
摘要： A drill bit that includes a bit body formed from a matrix powder and at least one cutting element for engaging a formation, wherein the matrix powder included (a) stoichiometric tungsten carbide particles, (b) cemented tungsten carbide particles, and (c) cast tungsten carbide particles, and wherein after formation with the matrix powder, the bit has an erosion rate of less than 0.001 in/hr, a toughness of greater than 20 ksi(in0.5), and a transverse rupture strength of greater than 140 ksi is disclosed.
摘要翻译：一种钻头，其包括由基质粉末形成的一个位体和用于接合地层的至少一个切割元件，其中所述基质粉末包括（a）化学计量的碳化钨颗粒，（b）硬质合金碳化物颗粒，和（c）铸造碳化钨颗粒，并且其中在与基体粉末形成之后，该钻头的侵蚀速率小于0.001英寸/小时，韧性大于20ksi（in.5），横向断裂强度大于140ksi 被披露。

5. 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。

6. 发明授权

US08323372B1 Low coefficient of thermal expansion cermet compositions 失效
标题翻译：低的热膨胀系数金属陶瓷组合物
公开(公告)号：US08323372B1
公开(公告)日：2012-12-04
申请号：US09494877
申请日：2000-01-31
申请人： Zhigang Fang , Anthony Griffo , Gregory T. Lockwood , Dah-Ben Liang
发明人： Zhigang Fang , Anthony Griffo , Gregory T. Lockwood , Dah-Ben Liang
IPC分类号： C22C29/00
CPC分类号： E21B10/46 , B22F3/156 , B22F2998/00 , C22C29/00 , C22C29/06 , E21B10/52
摘要： Low coefficient of thermal expansion (CTE) cermet compositions of this invention generally comprise a hard phase material and a ductile phase formed from a binder alloy, wherein the binder alloy is specially designed having a CTE that is closely matched to the hard phase material. Hard phase materials used to form low CTE compositions of this invention are selected from the group of carbides consisting of W, Ti, Mo, Nb, V, Si, Hf, Ta, and Cr carbides. The binder alloy is formed from a mixture of metals selected from the group consisting of Co, Ni, Fe, W, Mo, Ti, Ta, V, Nb, C, B, Cr, and Mn. In a preferred embodiment, low CTE compositions comprises WC as the hard phase material, and a ductile phase binder alloy formed from a mixture of Fe, Co, and Ni. The so-formed low CTE composition has a coefficient of thermal expansion that is less than that of conventional WC—Co at the same temperature and having the same metal content, thereby providing improved resistance to thermal shock and thermal fatigue related failure.
摘要翻译：本发明的低热膨胀系数（CTE）金属陶瓷组合物通常包括由粘合剂合金形成的硬质相和材料，其中粘合剂合金被特别设计成具有与硬相材料紧密匹配的CTE。用于形成本发明的低CTE组合物的硬相材料选自由W，Ti，Mo，Nb，V，Si，Hf，Ta和Cr碳化物组成的碳化物组。粘合剂合金由选自Co，Ni，Fe，W，Mo，Ti，Ta，V，Nb，C，B，Cr和Mn的金属的混合物形成。在优选实施方案中，低CTE组合物包含WC作为硬相材料，以及由Fe，Co和Ni的混合物形成的延性相粘合剂合金。如此形成的低CTE组合物在相同温度下具有比常规WC-Co低的热膨胀系数，并且具有相同的金属含量，从而提供对热冲击和热疲劳相关故障的改进的抗性。

7. 发明授权

US08776913B2 Special curve braze sheet for top loading cutter to get better braze strength 失效
标题翻译：特殊曲线钎焊板用于顶部装载刀具以获得更好的钎焊强度
公开(公告)号：US08776913B2
公开(公告)日：2014-07-15
申请号：US13272642
申请日：2011-10-13
申请人： Jimykumar Prajapati , Gregory T. Lockwood
发明人： Jimykumar Prajapati , Gregory T. Lockwood
IPC分类号： E21B10/36
CPC分类号： E21B10/567 , B23K1/0008
摘要： A method of brazing a top loading cutter into a cutter pocket is disclosed, wherein the method includes placing at least one braze disc between an inner wall of the cutter pocket and a portion of the top loading cutter and heating the at least one braze disc to a temperature above the melting temperature of the braze disc.
摘要翻译：公开了一种将顶部装载刀具钎焊到刀具槽中的方法，其中该方法包括将至少一个钎焊盘放置在切割器槽的内壁和顶部加载刀具的一部分之间并将至少一个钎焊盘加热到高于钎焊盘的熔化温度的温度。

8. 发明授权

US08056652B2 Barrier coated granules for improved hardfacing material using atomic layer deposition 有权
标题翻译：阻隔涂层颗粒，用于使用原子层沉积来改善表面硬化材料
公开(公告)号：US08056652B2
公开(公告)日：2011-11-15
申请号：US12133918
申请日：2008-06-05
申请人： Gregory T. Lockwood , Guodong Zhan
发明人： Gregory T. Lockwood , Guodong Zhan
IPC分类号： E21B10/36
CPC分类号： E21B17/1085 , B22F1/02 , B22F7/06 , C22C26/00 , C22C29/02 , C23C30/005 , E21B10/50
摘要： A hardfacing composition for a drill bit that includes an abrasive phase comprising a plurality of abrasive particles having a barrier coating deposited by atomic layer deposition disposed thereon; and a binder alloy is disclosed. Drill bits having hardfacing compositions that include an abrasive phase comprising a plurality of abrasive particles having a barrier coating deposited by atomic layer deposition disposed thereon; and a binder alloy are also disclosed.
摘要翻译：一种用于钻头的硬化组合物，其包括研磨相，所述磨料相包含多个磨料颗粒，所述磨料颗粒具有通过其上设置的原子层沉积沉积的阻挡涂层; 和粘合剂合金。具有硬化组合物的钻头，其包括研磨相，所述研磨相包含多个磨料颗粒，所述研磨颗粒具有沉积在其上的原子层沉积沉积的阻挡涂层; 还公开了粘合剂合金。

9. 发明授权

US08020640B2 Impregnated drill bits and methods of manufacturing the same 有权
标题翻译：浸渍钻头及其制造方法
公开(公告)号：US08020640B2
公开(公告)日：2011-09-20
申请号：US12122526
申请日：2008-05-16
申请人： Gregory T. Lockwood , Jonan Fulenchek
发明人： Gregory T. Lockwood , Jonan Fulenchek
IPC分类号： E21B10/43
CPC分类号： E21B10/46 , B22F2005/002 , C22C26/00 , C22C29/00 , C22C29/08 , E21B10/54
摘要： A drill bit that includes a body having a lower end face for engaging a rock formation is disclosed. The end face has a plurality of raised ribs extending from the face of the bit body and separated by a plurality of channels therebetween. At least one of the plurality of ribs has a leading portion and a trailing portion, the leading portion comprising a first matrix material impregnated with super abrasive particles and the trailing portion comprising a second matrix material impregnated with super abrasive particles, wherein the first and second matrix materials differ from each other.
摘要翻译：公开了一种钻头，其包括具有用于接合岩层的下端面的主体。端面具有从钻头体的表面延伸并由其间的多个通道隔开的多个凸肋。所述多个肋中的至少一个具有引导部分和后部，所述引导部分包括浸渍有超级磨料颗粒的第一基体材料，所述后部部分包含浸渍有超磨料颗粒的第二基质材料，其中所述第一和第二基质材料彼此不同。

10. 发明申请

US20100038145A1 HARDFACING COMPOSITIONS FOR EARTH BORING TOOLS 有权
标题翻译：用于地球钻孔工具的组合物
公开(公告)号：US20100038145A1
公开(公告)日：2010-02-18
申请号：US12190002
申请日：2008-08-12
申请人： Alan W. Lockstedt , Gregory T. Lockwood
发明人： Alan W. Lockstedt , Gregory T. Lockwood
IPC分类号： E21B10/08 , C09K3/14 , E21B10/52
CPC分类号： E21B10/52 , B22F2005/001 , B22F2998/00 , B23K35/327 , C22C29/08 , C23C30/005 , B22F7/08
摘要： A hardfacing composition essentially consisting of from about 50 to 75 percent by weight of a carbide phase having a particle size distribution of ±20% or less of a median particle size; and from about 25 to 50 percent by weight of binder phase is disclosed. Drill bits having such hardfacing compositions disposed thereon are also disclosed.
摘要翻译：一种表面硬化组合物，其基本上由约50至75重量％的具有中值粒径的±20％或更小的粒度分布的碳化物相组成; 和约25至50重量％的粘合剂相。还公开了具有设置在其上的具有这种表面硬化组合物的钻头。

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