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81. 发明授权

US07036614B2 Fracture and wear resistant compounds and rock bits 有权
公开(公告)号：US07036614B2
公开(公告)日：2006-05-02
申请号：US10396261
申请日：2003-03-25
申请人： Dah-Ben Liang , Anthony Griffo
发明人： Dah-Ben Liang , Anthony Griffo
IPC分类号： E21B10/36
CPC分类号： E21B10/52 , B22F2005/001 , C22C29/08 , E21B10/08 , E21B10/16 , E21B17/1092
摘要： An insert for a rock bit that includes tungsten carbide particles, and a cobalt binder disposed around the particles, wherein a grain size of the tungsten carbide particles and a content of the cobalt binder are selected to provide a fracture toughness of at least about 18 ksi (in)0.5, a wear number of at least about 2, and a hardness of 85 to 87 Ra is disclosed.

82. 发明申请

US20060081402A1 Impregnated diamond cutting structures 有权
标题翻译：浸渍金刚石切割结构
公开(公告)号：US20060081402A1
公开(公告)日：2006-04-20
申请号：US10967651
申请日：2004-10-18
申请人： Greg Lockwood , Thomas Oldham , Anthony Griffo , Madapusi Keshavan , David Conroy
发明人： Greg Lockwood , Thomas Oldham , Anthony Griffo , Madapusi Keshavan , David Conroy
IPC分类号： E21B10/36
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，其包括将多个基本上均匀涂覆的金刚石颗粒加载到模腔中，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。

83. 发明授权

US07017677B2 Coarse carbide substrate cutting elements and method of forming the same 失效
标题翻译：粗碳化物基体切割元件及其形成方法
公开(公告)号：US07017677B2
公开(公告)日：2006-03-28
申请号：US10437750
申请日：2003-05-14
申请人： Madapusi K. Keshavan , Anthony Griffo , David Truax , Dah-Ben Liang
发明人： Madapusi K. Keshavan , Anthony Griffo , David Truax , Dah-Ben Liang
IPC分类号： E21B10/08 , E21B10/46
CPC分类号： E21B10/567 , C22C29/08 , C23C30/005
摘要： Cutting elements having coarse grain substrates and ultra hard material layers are provided. The substrates are formed from coarse grain size particles of tungsten carbide. A method of forming such cutting elements and a drag bit incorporating such cutting elements are also provided.
摘要翻译：提供具有粗颗粒基材和超硬材料层的切割元件。基板由碳化钨的粗粒度颗粒形成。还提供了形成这种切割元件的方法和包括这种切割元件的拖曳钻头。

84. 发明申请

US20060060391A1 Thermally stable diamond polycrystalline diamond constructions 有权
公开(公告)号：US20060060391A1
公开(公告)日：2006-03-23
申请号：US10947075
申请日：2004-09-21
申请人： Ronald Eyre , Anthony Griffo , Thomas Oldham
发明人： Ronald Eyre , Anthony Griffo , Thomas Oldham
IPC分类号： E21B10/36
CPC分类号： E21B10/567 , B22F2003/244 , B22F2005/001 , B22F2998/00 , C22C26/00 , Y10T407/27 , Y10T428/252 , Y10T428/265 , Y10T428/30 , B22F7/06
摘要： Thermally stable diamond constructions comprise a diamond body having a plurality of bonded diamond crystals and a plurality of interstitial regions disposed among the crystals. A metallic substrate is attached to the diamond body. A working surface is positioned along an outside portion of the diamond body, and the diamond body comprises a first region that is substantially free of a catalyst material, and a second region that includes the catalyst material. The diamond body first region extends from the working surface to depth of at least about 0.02 mm to a depth of less than about 0.09 mm. The diamond body includes diamond crystals having an average diamond grain size of greater than about 0.02 mm, and comprises at least 85 percent by volume diamond based on the total volume of the diamond body.

85. 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。

86. 发明申请

US20050230156A1 Thermally-stable polycrystalline diamond materials and compacts 失效
标题翻译：耐热多晶金刚石材料和压块
公开(公告)号：US20050230156A1
公开(公告)日：2005-10-20
申请号：US11005675
申请日：2004-12-06
申请人： John Belnap , Stewart Middlemiss , Anthony Griffo , Thomas Oldham , Kumar Kembaiyan
发明人： John Belnap , Stewart Middlemiss , Anthony Griffo , Thomas Oldham , Kumar Kembaiyan
IPC分类号： B01J3/06 , B22F7/06 , B24D3/00 , B24D11/00 , C01B31/06 , C04B35/52 , C04B35/645 , C22C26/00 , E21B10/00 , E21B10/56 , E21B10/567 , E21B10/573
CPC分类号： E21B10/567 , B01J3/065 , B01J2203/062 , B01J2203/0655 , B01J2203/0685 , B22F7/06 , B22F2998/00 , B22F2998/10 , C01B32/28 , C04B35/52 , C04B35/645 , C04B2235/3275 , C04B2235/3826 , C04B2235/3891 , C04B2235/40 , C04B2235/402 , C04B2235/404 , C04B2235/405 , C04B2235/421 , C04B2235/427 , C04B2235/428 , C04B2235/80 , C22C1/058 , C22C26/00 , C22C2204/00 , E21B10/56 , E21B10/5735 , Y10T428/12056 , Y10T428/12063 , Y10T428/1209 , Y10T428/12146 , Y10T428/30 , B22F2207/01 , B22F1/0059 , B22F1/025 , B22F3/15
摘要： Thermally-stable polycrystalline diamond materials of this invention comprise a first phase including a plurality of bonded together diamond crystals, and a second phase including a reaction product formed between a binder/catalyst material and a material reactive with the binder/catalyst material. The reaction product is disposed within interstitial regions of the polycrystalline diamond material that exists between the bonded diamond crystals. The first and second phases are formed during a single high pressure/high temperature process condition. The reaction product has a coefficient of thermal expansion that is relatively closer to that of the bonded together diamond crystals than that of the binder/catalyst material, thereby providing an improved degree of thermal stability to the polycrystalline diamond material.
摘要翻译：本发明的热稳定型多晶金刚石材料包括包含多个结合在一起的金刚石晶体的第一相和包含在粘合剂/催化剂材料与与粘合剂/催化剂材料反应的材料之间形成的反应产物的第二相。反应产物设置在存在于结合的金刚石晶体之间的多晶金刚石材料的间隙区域内。第一和第二相在单个高压/高温工艺条件下形成。反应产物的热膨胀系数比粘合剂/催化剂材料的热膨胀系数更接近于结合在一起的金刚石晶体的热膨胀系数，从而为多晶金刚石材料提供了改善的热稳定性。

87. 发明授权

US06951578B1 Polycrystalline diamond materials formed from coarse-sized diamond grains 有权
标题翻译：由粗大的金刚石颗粒形成的多晶金刚石材料
公开(公告)号：US06951578B1
公开(公告)日：2005-10-04
申请号：US09637092
申请日：2000-08-10
申请人： Daniel J. Belnap , Nathan R. Anderson , Zhigang Fang , Anthony Griffo , Brian A. White
发明人： Daniel J. Belnap , Nathan R. Anderson , Zhigang Fang , Anthony Griffo , Brian A. White
IPC分类号： B01J3/06 , C22C26/00 , E21B10/52 , B32B9/00
CPC分类号： E21B10/52 , B01J3/065 , B01J2203/062 , C22C26/00
摘要： PCD materials of this invention comprise diamond crystals that are bonded together with a catalyst/binder material. The PCD material is prepared by combining diamond grains with a catalyst/binder material either as a premixture or by infiltration during sintering. The PCD material comprises 15 percent by volume or less diamond grains sized 20 micrometers or less. The diamond grains are pressurized under elevated temperature conditions to form the desired PCD material. PCD materials of this invention can constitute the exclusive material phase of a PCD construction, or can form one or more material phase in a multi-phase material microstructure, wherein the multiple material phase can be arranged in an ordered/oriented or random fashion. PCD materials of this invention display improved properties of impact and fatigue resistance, and functional toughness, when used in complex wear environments, when compared to conventional PCs materials comprising intentionally added fine-sized diamond grains.
摘要翻译：本发明的PCD材料包括与催化剂/粘合剂材料结合在一起的金刚石晶体。通过将金刚石晶粒与催化剂/粘合剂材料组合作为预混合物或通过在烧结期间的渗透来制备PCD材料。 PCD材料包括15微摩尔或更小的15体积％或更少的金刚石颗粒。金刚石晶粒在高温条件下被加压以形成所需的PCD材料。本发明的PCD材料可以构成PCD结构的独特材料相，或者可以在多相材料微结构中形成一个或多个材料相，其中多个材料相可以以有序/定向或随机的方式布置。当与常规的包含有意添加的精细尺寸的金刚石颗粒的材料相比时，本发明的PCD材料在复杂的磨损环境中使用时显示改善的冲击和抗疲劳性能以及功能性韧性。

88. 发明申请

US20050067196A1 Shaped inserts with increased retention force 失效
标题翻译：成型刀片具有增加的保持力
公开(公告)号：US20050067196A1
公开(公告)日：2005-03-31
申请号：US10917229
申请日：2004-08-12
申请人： Ramamurthy Viswanadham , Lance Richman , Chris Cawthorne , Anthony Griffo
发明人： Ramamurthy Viswanadham , Lance Richman , Chris Cawthorne , Anthony Griffo
IPC分类号： E21B10/16
CPC分类号： E21B10/16
摘要： A shaped insert that includes a top portion, and a grip length, wherein the grip length is modified to have a non-uniform cross sectional area is disclosed. In another case, a shaped insert includes a top portion, and a grip length, wherein the grip length is modified such that the insert is non-cylindrical. In another case, a shaped insert includes a top portion, and a grip length, wherein the grip length is coated in a non-uniform manner.
摘要翻译：公开了一种成形插入件，其包括顶部和握持部分长度，其中把持长度被修改为具有不均匀的横截面面积。在另一种情况下，成形插入件包括顶部部分和握持部分长度，其中握持部分长度被修改为使得插入件是非圆柱形的。在另一种情况下，成形插入件包括顶部部分和握持部分长度，其中握持部分长度以不均匀的方式被涂覆。

89. 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。

90. 发明申请

US20110247278A1 POLYCRYSTALLINE DIAMOND CONSTRUCTIONS HAVING IMPROVED THERMAL STABILITY 审中-公开
标题翻译：具有改进的热稳定性的多晶金刚石构造
公开(公告)号：US20110247278A1
公开(公告)日：2011-10-13
申请号：US13085089
申请日：2011-04-12
申请人： Madapusi K. Keshavan , Ronald K. Eyre , Anthony Griffo , Peter Thomas Cariveau
发明人： Madapusi K. Keshavan , Ronald K. Eyre , Anthony Griffo , Peter Thomas Cariveau
IPC分类号： B24D3/10 , B01J3/06
CPC分类号： E21B10/55 , C22C1/05 , C22C26/00 , C22C2204/00 , E21B10/5673
摘要： A method for making a polycrystalline diamond construction is disclosed, which includes the steps of treating a polycrystalline diamond body having a plurality of bonded together diamond crystals and a solvent catalyst material to remove the solvent catalyst material therefrom, wherein the solvent catalyst material is disposed within interstitial regions between the bonded together diamond crystals, replacing the removed solvent catalyst material with a replacement material, and treating the body having the replacement material to remove substantially all of the replacement material from a first region of the body extending a depth from a body surface, and allowing the remaining amount of the replacement material to reside in a second region of the body that is remote from the surface.
摘要翻译：公开了一种制造多晶金刚石结构的方法，其包括以下步骤：处理具有多个结合在一起的金刚石晶体的多晶金刚石体和溶剂催化剂材料，以从其中除去溶剂催化剂材料，其中溶剂催化剂材料置于接合在一起的金刚石晶体之间的间隙区域，用替换材料代替去除的溶剂催化剂材料，以及处理具有替换材料的主体，以从身体的第一区域移除基本上所有的替代材料，该第一区域从身体表面延伸深度并且允许剩余量的替换材料驻留在远离表面的身体的第二区域中。

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