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31. 发明申请

US20100175926A1 ROLLER CONES HAVING NON-INTEGRAL CUTTING STRUCTURES, DRILL BITS INCLUDING SUCH CONES, AND METHODS OF FORMING SAME 审中-公开
标题翻译：具有非整体切割结构的滚子体，包括这种锥体的钻头位置及其形成方法
公开(公告)号：US20100175926A1
公开(公告)日：2010-07-15
申请号：US12354604
申请日：2009-01-15
申请人： Robert J. Buske , James L. Overstreet
发明人： Robert J. Buske , James L. Overstreet
IPC分类号： E21B10/50 , E21B10/08 , B21K5/02 , B21K5/06 , E21B10/16
CPC分类号： E21B10/16 , E21B10/50
摘要： Methods of manufacturing roller cones for drill bits include providing both integral teeth and non-integral teeth on the roller cones. A layer of hardfacing may be applied to the integral teeth. Non-integral teeth may be formed on a body of a cone, or they may be separately formed from the body and attached thereto. In some embodiments, the non-integral teeth are formed by building-up the non-integral teeth from hardfacing material. Roller cones and earth-boring tools are formed using such methods.
摘要翻译：制造用于钻头的滚筒锥体的方法包括在滚子锥体上提供整体齿和非整体齿。可以将一层表面硬化施加到整体牙齿。非整体齿可以形成在锥体的主体上，或者它们可以与主体分开地形成并附接到其上。在一些实施例中，通过从表面硬化材料构建非整体齿来形成非整体齿。使用这种方法形成滚筒和钻孔工具。

32. 发明授权

US07654346B2 Steel tooth drill bit with improved tooth breakage resistance 有权
标题翻译：钢齿钻头具有改善的抗牙齿破坏能力
公开(公告)号：US07654346B2
公开(公告)日：2010-02-02
申请号：US11804607
申请日：2007-05-18
申请人： James L. Overstreet , Robert J. Buske , Kenneth E. Gilmore , Jeremy K. Morgan
发明人： James L. Overstreet , Robert J. Buske , Kenneth E. Gilmore , Jeremy K. Morgan
IPC分类号： E21B10/08
CPC分类号： E21B10/50 , C22C29/067
摘要： A drill bit having steel teeth is provided with a combination of hardfacing materials on the teeth. The bases of the teeth are hardfaced with nickel-based materials to significantly reduce any potential cracking therein. Portions of the supporting cones adjacent the teeth also may be fabricated with the nickel-based hardfacing. All other portions of the teeth are hardfaced with iron-based materials.
摘要翻译：具有钢齿的钻头具有牙齿上的表面硬化材料的组合。齿的基部用镍基材料硬化，以显着减少其中的任何潜在的裂纹。邻近牙齿的支撑锥的部分也可以用镍基硬化面来制造。齿的所有其他部分都用铁基材料硬化。

33. 发明授权

US07621347B2 Bit leg and cone hardfacing for earth-boring bit 有权
标题翻译：钻头钻头的位腿和锥面硬化
公开(公告)号：US07621347B2
公开(公告)日：2009-11-24
申请号：US11377588
申请日：2006-03-16
申请人： James L. Overstreet
发明人： James L. Overstreet
IPC分类号： E21B10/46
CPC分类号： B22F7/06 , B22F2999/00 , B23K9/04 , B23K35/004 , B23K35/327 , C23C4/02 , C23C4/06 , C23C4/18 , C23C24/10 , C23C26/02 , C23C30/005 , E21B10/50 , C22C29/06 , B22F1/0048
摘要： An earth-boring bit has a bit body, and a bit leg depending from the bit body with a circumferentially extending outer surface, a leading side and a trailing side. A cone is rotatably mounted on a cantilevered bearing shaft depending inwardly from the bit leg. A first layer of a hardfacing composition of carbide particles dispersed in a nickel-based matrix is formed on the bit leg. A second layer of a hardfacing composition of carbide particles dispersed in an iron-based matrix that is formed on the cone. The first layer of hardfacing is applied by conveying carbide particles in a nickel-based matrix through a pulsed plasma transferred arc process. The second layer of hardfacing is applied with a torch and a hardfacing tube comprising carbide particles held within an iron-based tube.
摘要翻译：一个钻地钻头有一个身体，一个从腿部身体延伸出来的一个小腿，具有周向延伸的外表面，前侧和后侧。圆锥体可旋转地安装在从钻头腿向内倾斜的悬臂轴承轴上。在位腿上形成分散在镍基基质中的碳化物颗粒表面硬化组合物的第一层。分散在形成在锥体上的铁基基质中的碳化物颗粒表面硬化组合物的第二层。通过脉冲等离子体转移电弧工艺在镍基基体中输送碳化物颗粒来施加第一层耐磨性。施加第二层表面硬化处理，其中包括固定在铁基管内的碳化物颗粒的焊炬和表面硬化管。

34. 发明授权

US06371225B1 Drill bit and surface treatment for tungsten carbide insert 有权
标题翻译：钻头和表面处理用于碳化钨刀片
公开(公告)号：US06371225B1
公开(公告)日：2002-04-16
申请号：US09548867
申请日：2000-04-13
申请人： James L. Overstreet , Anil Kumar
发明人： James L. Overstreet , Anil Kumar
IPC分类号： E21B1050
CPC分类号： B24B1/00 , B22F2005/001 , B22F2998/00 , B24B21/004 , B24B21/02 , C23C30/005 , E21B10/52 , B22F7/062
摘要： A drill bit insert has a cylindrical barrel, a bevel on one end, an interface therebetween, and a cutting tip opposite the bevel. The bevel and interface contact the entrance to a hole in the drill bit and facilitate the transition of the barrel into the hole. A high quality surface finish on the bevel and interface enhance the durability and retention of the insert in the drill bit. The surface finish on the insert is produced by polishing it with a diamond lapping film. The insert is rotated between three rollers as the lapping film passes over its surface. One of the rollers and the film conform to the axial profile of the insert as each element rotates so that the interface, bevel, and barrel of the insert are simultaneously polished.
摘要翻译：钻头刀片具有圆柱形筒，一端上的斜面，它们之间的界面以及与斜面相对的切割尖端。斜面和界面将入口与钻头中的孔接触，并有助于将筒体过渡到孔中。斜面和界面上的高质量表面光洁度增强了刀片在钻头中的耐久性和保持力。刀片上的表面光洁度是通过用金刚石研磨膜抛光来生产的。当研磨膜通过其表面时，插入件在三个辊之间旋转。当每个元件旋转时，辊和膜中的一个与插入件的轴向轮廓一致，使得插入件的界面，斜面和圆筒同时被抛光。

35. 发明授权

US08943663B2 Methods of forming and repairing cutting element pockets in earth-boring tools with depth-of-cut control features, and tools and structures formed by such methods 有权
标题翻译：在钻孔工具中形成和修复切割元件凹坑的方法具有深度切割控制特征，以及通过这种方法形成的工具和结构
公开(公告)号：US08943663B2
公开(公告)日：2015-02-03
申请号：US12424248
申请日：2009-04-15
申请人： James L. Overstreet , Kenneth E. Gilmore , Travis E. Puzz
发明人： James L. Overstreet , Kenneth E. Gilmore , Travis E. Puzz
IPC分类号： B23P25/00 , E21B10/43 , E21B10/55
CPC分类号： E21B10/54 , B23P15/28 , E21B10/43 , E21B10/55 , E21B10/62 , Y10T29/49885 , Y10T29/49982
摘要： Methods of forming and repairing earth-boring tools include providing wear-resistant material over a temporary displacement member to form a cutting element pocket in a body and a depth-of-cut control feature using the wear-resistant material. In some embodiments, the wear-resistant material may comprise a particle-matrix composite material. For example, a hardfacing material may be built up over a temporary displacement member to form or repair a cutting element pocket and provide a depth-of-cut control feature. Earth-boring tools include a depth-of-cut control feature comprising a wear-resistant material. The depth-of-cut control feature is configured to limit a depth-of-cut of a cutting element secured within a cutting element pocket partially defined by at least one surface of the depth-of-cut control feature. Intermediate structures formed during fabrication of earth-boring tools include a depth-of-cut control feature extending over a temporary displacement member.
摘要翻译：形成和修理钻孔工具的方法包括在临时移位构件上设置耐磨材料，以在主体中形成切割元件袋，并使用耐磨材料形成切割深度控制特征。在一些实施例中，耐磨材料可以包括颗粒 - 基质复合材料。例如，可以在临时位移构件上构建表面硬化材料以形成或修复切割元件凹部并提供切割深度控制特征。钻孔工具包括具有耐磨材料的深度切割控制特征。切割深度控制特征被配置为限制固定在切割元件袋内的切割元件的切割深度，其部分地由切割深度控制特征的至少一个表面限定。在钻孔工具的制造期间形成的中间结构包括在临时位移构件上延伸的深度切割控制特征。

36. 发明授权

US08307920B2 Roller cone disk with shaped compacts 有权
标题翻译：圆锥盘与成型紧凑
公开(公告)号：US08307920B2
公开(公告)日：2012-11-13
申请号：US12541048
申请日：2009-08-13
申请人： Robert J. Buske , James L. Overstreet , Thomas M. Stefanik , Shyam Anandampillai , Robert D. Bradshaw
发明人： Robert J. Buske , James L. Overstreet , Thomas M. Stefanik , Shyam Anandampillai , Robert D. Bradshaw
IPC分类号： E21B10/16
CPC分类号： E21B10/06 , E21B10/12
摘要： An earth boring drill bit that includes a cutting cone with a cutting disk. Compacts are inserted within the disk having a chisel shaped end set flush with the cutting disk periphery. The compact crests and cutting disk periphery form a generally seamless cutting surface. The cutting cone can further include cutting teeth thereon also having flush mounted compacts. The compacts can be made from a material such as cemented carbide, hardfacing, tungsten, tungsten alloys, tungsten carbide and the cutter made from steel.
摘要翻译：一种钻孔钻头，包括带切割盘的切割锥体。紧凑件插入盘内，其具有与切割盘周边齐平的凿形端部。紧凑的波峰和切割圆盘周边形成通常无缝的切割表面。切割锥体还可以包括在其上的切割齿也具有齐平安装的压块。压块可以由硬质合金，硬质合金，钨，钨合金，碳化钨等材料制成，并由钢制成。

37. 发明申请

US20110138695A1 METHODS FOR APPLYING ABRASIVE WEAR RESISTANT MATERIALS TO A SURFACE OF A DRILL BIT 审中-公开
标题翻译：将磨损耐磨材料应用于钻头表面的方法
公开(公告)号：US20110138695A1
公开(公告)日：2011-06-16
申请号：US13023882
申请日：2011-02-09
申请人： Jimmy W. Eason , James L. Overstreet
发明人： Jimmy W. Eason , James L. Overstreet
IPC分类号： C09K3/14
CPC分类号： E21B10/54 , B22F7/062 , B22F2005/001 , C22C29/08 , E21B10/46 , E21B10/573
摘要： Methods for applying an abrasive wear-resistant material to a surface of a drill bit include providing a drill bit having a bit body formed of a material comprising one of steel material, particle-matrix composite material and cemented matrix material, mixing a plurality of −40/+80 ASTM mesh dense sintered carbide pellets in a matrix material, heating the matrix material to a temperature above the melting point of the matrix material, applying the molten matrix material and at least some of the dense sintered carbide pellets to at least a portion of an exterior surface of the bit body; and solidifying the molten matrix material.
摘要翻译：将磨料耐磨材料施加到钻头表面的方法包括提供钻头，该钻头具有由包括钢材，颗粒 - 基质复合材料和胶结基体材料之一的材料形成的钻头体，将基质材料中的基质材料加热至高于基体材料熔点的温度，将熔融基体材料和至少一些致密的烧结碳化物球粒加到至少一个钻头体的外表面的一部分; 并固化熔融基体材料。

38. 发明申请

US20110094341A1 METHODS OF FORMING EARTH BORING ROTARY DRILL BITS INCLUDING BIT BODIES COMPRISING REINFORCED TITANIUM OR TITANIUM BASED ALLOY MATRIX MATERIALS 审中-公开
标题翻译：形成地下钻头旋转钻头的方法，包括包含加强钛或钛基合金基体材料的钻头体
公开(公告)号：US20110094341A1
公开(公告)日：2011-04-28
申请号：US12871670
申请日：2010-08-30
申请人： Heeman Choe , John H. Stevens , James L. Overstreet , James C. Westhoff , Jimmy W. Eason
发明人： Heeman Choe , John H. Stevens , James L. Overstreet , James C. Westhoff , Jimmy W. Eason
IPC分类号： B21K5/04
CPC分类号： E21B10/00 , B22F7/062 , B22F7/08 , B22F2005/002 , B22F2998/10 , C22C1/051 , C22C14/00 , C22C29/005 , C22C32/0047 , E21B10/567 , B22F3/04 , B22F3/162
摘要： Earth-boring rotary drill bits include bit bodies comprising a composite material including a plurality of hard phase regions or particles dispersed throughout a titanium or titanium-based alloy matrix material. The bits further include a cutting structure disposed on a face of the bit body. In some embodiments, the bit bodies may include a plurality of regions having differing material compositions. For example, the bit bodies may include a first region comprising a plurality of hard phase regions or particles dispersed throughout a titanium or titanium-based alloy matrix material, and a second region comprising a titanium or a titanium-based alloy material. Methods for forming such drill bits include at least partially sintering a plurality of hard particles and a plurality of particles comprising titanium or a titanium-based alloy material to form a bit body comprising a particle-matrix composite material. A shank may be attached directly to the bit body.
摘要翻译：钻孔旋转钻头包括钻头体，其包括复合材料，所述复合材料包括分散在整个钛或钛基合金基体材料中的多个硬质相区域或颗粒。钻头还包括设置在钻头体的表面上的切割结构。在一些实施例中，钻头体可以包括具有不同材料组成的多个区域。例如，钻头体可以包括包括分散在整个钛或钛基合金基体材料中的多个硬质相区域或颗粒的第一区域，以及包含钛或钛基合金材料的第二区域。形成这种钻头的方法包括至少部分地烧结多个硬颗粒和多个包含钛或钛基合金材料的颗粒，以形成包含颗粒 - 基体复合材料的钻头体。柄可以直接附接到钻头体上。

39. 发明授权

US07913779B2 Earth-boring rotary drill bits including bit bodies having boron carbide particles in aluminum or aluminum-based alloy matrix materials, and methods for forming such bits 有权
标题翻译：具有在铝或铝基合金基体材料中具有碳化硼颗粒的钻头体的钻孔旋转钻头以及用于形成这种钻头的方法
公开(公告)号：US07913779B2
公开(公告)日：2011-03-29
申请号：US11540912
申请日：2006-09-29
申请人： Heeman Choe , John H. Stevens , James C. Westhoff , Jimmy W. Eason , James L. Overstreet
发明人： Heeman Choe , John H. Stevens , James C. Westhoff , Jimmy W. Eason , James L. Overstreet
IPC分类号： E21B10/36
CPC分类号： E21B10/00 , E21B10/567
摘要： Rotary drill bits for drilling subterranean formations include a bit body and at least one cutting structure disposed on a face thereof. The bit body includes a crown region comprising a particle-matrix composite material that includes a plurality of boron carbide particles dispersed throughout an aluminum or aluminum-based alloy matrix material. In some embodiments, the matrix material may include a continuous solid solution phase and a discontinuous precipitate phase. Methods of manufacturing rotary drill bits for drilling subterranean formations include infiltrating a plurality of boron carbide particles with a molten aluminum or aluminum-based material. In additional methods, a green powder component is provided that includes a plurality of particles each comprising boron carbide and a plurality of particles each comprising aluminum or an aluminum-based alloy material. The green powder component is at least partially sintered to provide a bit body, and a shank is attached to the bit body.
摘要翻译：用于钻探地层的旋转钻头包括钻头体和设置在其表面上的至少一个切割结构。钻头体包括冠部区域，其包括颗粒 - 基质复合材料，其包括分散在整个铝或铝基合金基体材料中的多个碳化硼颗粒。在一些实施方案中，基质材料可以包括连续的固溶相和不连续的沉淀相。用于钻探地下地层的旋转钻头的制造方法包括用熔融的铝或铝基材料渗透多个碳化硼颗粒。在另外的方法中，提供了一种绿色粉末组分，其包括多个颗粒，每个颗粒包含碳化硼和多个颗粒，每个颗粒包含铝或铝基合金材料。绿色粉末成分至少部分地被烧结以提供钻头体，并且柄部附接到钻头体上。

40. 发明授权

US07878274B2 Steel tooth disk with hardfacing 有权
标题翻译：钢牙盘表面硬化
公开(公告)号：US07878274B2
公开(公告)日：2011-02-01
申请号：US12239025
申请日：2008-09-26
申请人： Robert J. Buske , James L. Overstreet
发明人： Robert J. Buske , James L. Overstreet
IPC分类号： E21B10/46 , E21B10/16
CPC分类号： E21B10/50
摘要： An earth boring drill bit comprising a milled cutter having rows of teeth hardfacing guides on the cutter. Hardfacing is applied between adjacent teeth hardfacing guides to form a cutting element. The hardfacing may extend past the crest of the teeth hardfacing guides or end along the teeth hardfacing guides flanks.
摘要翻译：一种钻孔钻头，其包括铣刀，该切割器具有在切割器上的排齿表面硬化引导件。在相邻的牙齿硬面导向件之间施加表面硬化以形成切割元件。表面硬化可以延伸超过牙齿表面硬化导向件的顶部或者沿着牙齿表面硬化面导向件的端部延伸。

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