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1. 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。

2. 发明授权

US5833021A Surface enhanced polycrystalline diamond composite cutters 失效
标题翻译：表面增强多晶金刚石复合切割机
公开(公告)号：US5833021A
公开(公告)日：1998-11-10
申请号：US615860
申请日：1996-03-12
申请人： Graham Mensa-Wilmot , Ghanshyam Rai , Madapusi K. Keshavan , David Truax , Kuttaripalayam T. Kembaiyan
发明人： Graham Mensa-Wilmot , Ghanshyam Rai , Madapusi K. Keshavan , David Truax , Kuttaripalayam T. Kembaiyan
IPC分类号： E21B10/54 , E21B10/55 , E21B10/56 , E21B10/567 , E21B10/46
CPC分类号： E21B10/55 , E21B10/567
摘要： A polycrystalline diamond cutter having a coating of refractory material applied to the polycrystalline diamond surface increases the operational life of the cutter. The coating typically has a thickness in the range of from 0.1 to 30 .mu.m and may be made from titanium nitride, titanium carbide, titanium carbonitride, titanium aluminum carbonitride, titanium aluminum nitride, boron carbide, zirconium carbide, chromium carbide, chromium nitride, or any of the transition metals or Group IV metals combined with either silicon, aluminum, boron, carbon, nitrogen or oxygen. The coating can be applied using conventional plating or other physical or chemical deposition techniques.
摘要翻译：具有施加到多晶金刚石表面的耐火材料涂层的多晶金刚石切割器增加了切割器的使用寿命。涂层通常具有0.1-30μm的厚度，并且可以由氮化钛，碳化钛，碳氮化钛，碳氮化钛铝，氮化铝钛，碳化硼，碳化锆，碳化铬，氮化铬，或与硅，铝，硼，碳，氮或氧结合的任何过渡金属或IV族金属。可以使用常规电镀或其他物理或化学沉积技术来涂覆涂层。

3. 发明授权

US07703560B2 Cutting element with canted interface surface and bit body incorporating the same 失效
标题翻译：具有倾斜接口表面的切削元件和结合其的钻头体
公开(公告)号：US07703560B2
公开(公告)日：2010-04-27
申请号：US12217706
申请日：2008-07-07
申请人： Ronald K. Eyre , Madapusi K. Keshavan , David Truax
发明人： Ronald K. Eyre , Madapusi K. Keshavan , David Truax
IPC分类号： E21B10/48
CPC分类号： E21B10/5735
摘要： The present invention provides a cutting element having a cylindrical body having a canted end face on which is formed an ultra hard material layer and to a bit incorporating such cutting element. One or a plurality of transition layers may be provided between the ultra hard material layer and the cutting element body.
摘要翻译：本发明提供一种具有圆筒体的切割元件，该圆筒体具有倾斜端面，其上形成有超硬材料层，以及一个包含该切割元件的钻头。可以在超硬材料层和切割元件主体之间设置一个或多个过渡层。

4. 发明申请

US20070119631A1 Cutting element with canted interface surface and bit body incorporating the same 有权
标题翻译：具有倾斜接口表面的切削元件和结合其的钻头体
公开(公告)号：US20070119631A1
公开(公告)日：2007-05-31
申请号：US11657198
申请日：2007-01-23
申请人： Ronald Eyre , Madapusi Keshavan , David Truax
发明人： Ronald Eyre , Madapusi Keshavan , David Truax
IPC分类号： E21B10/36
CPC分类号： E21B10/5735
摘要： The present invention provides a cutting element having a cylindrical body having a canted end face on which is formed an ultra hard material layer and to a bit incorporating such cutting element. One or a plurality of transition layers may be provided between the ultra hard material layer and the cutting element body.
摘要翻译：本发明提供一种切割元件，该切割元件具有一个具有倾斜端面的圆柱体，其上形成有超硬材料层，以及一个包含该切割元件的钻头。可以在超硬材料层和切割元件主体之间设置一个或多个过渡层。

5. 发明申请

US20090025985A1 Cutting element with canted interface surface and bit body incorporating the same 失效
标题翻译：具有倾斜接口表面的切削元件和结合其的钻头体
公开(公告)号：US20090025985A1
公开(公告)日：2009-01-29
申请号：US12217706
申请日：2008-07-07
申请人： Ronald K. Eyre , Madapusi K. Keshavan , David Truax
发明人： Ronald K. Eyre , Madapusi K. Keshavan , David Truax
IPC分类号： E21B10/46
CPC分类号： E21B10/5735
摘要： The present invention provides a cutting element having a cylindrical body having a canted end face on which is formed an ultra hard material layer and to a bit incorporating such cutting element. One or a plurality of transition layers may be provided between the ultra hard material layer and the cutting element body.
摘要翻译：本发明提供一种切割元件，该切割元件具有一个具有倾斜端面的圆柱体，其上形成有超硬材料层，以及一个包含该切割元件的钻头。可以在超硬材料层和切割元件主体之间设置一个或多个过渡层。

6. 发明授权

US06474425B1 Asymmetric diamond impregnated drill bit 有权
标题翻译：非对称金刚石浸渍钻头
公开(公告)号：US06474425B1
公开(公告)日：2002-11-05
申请号：US09619742
申请日：2000-07-19
申请人： David Truax , Timothy P. Beaton
发明人： David Truax , Timothy P. Beaton
IPC分类号： E21B1000
CPC分类号： E21B17/1092 , E21B10/26 , E21B10/46
摘要： A drill bit including a bit body and a plurality of blades formed in the bit body. The blades are formed, at least in part, from a base matrix material that on one embodiment is impregnated with abrasive particles. One side of the bit is formed, with respect to its axis of rotation, to a smaller radius than the opposite side of the bit. The asymmetry of the bit enables the bit to drill a larger diameter hole than a pass through diameter of the bit. The opposite side defines a contact angle between the bit and a formation. In one embodiment, the contact angle is at least 140 degrees. In one embodiment, a plurality of inserts may be located on the blades to provide gage protection. In another embodiment, the bit may also include a gage sleeve that helps keep the bit stabilized in the wellbore.
摘要翻译：一种钻头，包括形成在钻头体中的钻头体和多个刀片。叶片至少部分地由基体材料形成，在一个实施例中，该基体材料被磨料颗粒浸渍。钻头的一侧相对于其旋转轴线形成比钻头的相对侧更小的半径。钻头的不对称使钻头能够钻出比钻头直径大的直径孔。相对侧限定了钻头和地层之间的接触角。在一个实施例中，接触角至少为140度。在一个实施例中，多个插入件可以位于叶片上以提供量具保护。在另一个实施例中，钻头还可以包括有助于保持钻头在钻井中稳定的量具套管。

7. 发明授权

US06991049B2 Cutting element 失效
标题翻译：切割元件
公开(公告)号：US06991049B2
公开(公告)日：2006-01-31
申请号：US10079293
申请日：2002-02-20
申请人： Ronald K. Eyre , Madapusi K. Keshavan , David Truax
发明人： Ronald K. Eyre , Madapusi K. Keshavan , David Truax
IPC分类号： E21B10/48
CPC分类号： E21B10/5735
摘要： The present invention provides a cutting element having a cylindrical body having a canted end face on which is formed an ultra hard material layer and a method of forming the same. One or a plurality of transition layers may be provided between the ultra hard material layer and the cutting element body.
摘要翻译：本发明提供一种具有圆筒体的切割元件，其具有倾斜端面，其上形成有超硬材料层及其形成方法。可以在超硬材料层和切割元件主体之间设置一个或多个过渡层。

8. 发明授权

US5944128A Matrix hard facing by lost wax process 失效
标题翻译：失落蜡过程中的矩阵硬面
公开(公告)号：US5944128A
公开(公告)日：1999-08-31
申请号：US19877
申请日：1998-02-06
申请人： David Truax , Douglas Caraway , Stephen M. Evans , Andrew Murdock
发明人： David Truax , Douglas Caraway , Stephen M. Evans , Andrew Murdock
IPC分类号： B22D19/06 , B22D19/14 , B22D19/16 , B22F3/12 , B22F7/06 , B22F7/08 , E21B10/46 , E21B10/54 , E21B10/08
CPC分类号： B22F7/08 , B22D19/06 , B22D19/14 , B22D19/16 , B22F3/1275 , B22F7/06 , C22C1/1015 , E21B10/46 , E21B10/54 , B22F2005/001 , B22F2998/00
摘要： A drill bit comprises a main body part having a shank for connection to a drill string, an end face, an internal passage for supplying drilling fluid to the end face, a number of blades extending from the end face outwardly and longitudinally of the central axis of rotation of the bit, and a number of cutters mounted on each said blade. Each blade comprises a central metal core at least partly surrounded by solid infiltrated matrix material. A method of manufacturing such a drill bit includes the steps of forming a main body part from metal, applying to the outer surface of the main body part a coating layer of wax which liquefies at elevated temperature, applying to the coated body part mold-forming material to provide a self-supporting mold surrounding the coated body part, and raising the temperature of the body and surrounding mold sufficiently to liquefy the coating material. The liquefied coating is then drained from the mold, and the cavities left by the coating material are packed with powdered matrix material, which is then infiltrated with a binder alloy at elevated temperature to form a solid infiltrated matrix layer, on the bit body part, corresponding to the layer of wax previously applied.
摘要翻译：钻头包括具有用于连接到钻柱的柄的主体部分，端面，用于向端面提供钻井流体的内部通道，从端面向外和中心轴线的纵向延伸的多个叶片钻头的旋转以及安装在每个所述刀片上的多个切割器。每个叶片包括至少部分地被固体渗透的基质材料包围的中心金属芯。一种制造这种钻头的方法包括以下步骤：从金属形成主体部分，向主体部分的外表面涂覆在高温下液化的蜡涂层，施加到涂覆体部分模具成型提供围绕涂覆体部分的自支撑模具的材料，并且充分提高主体和周围模具的温度以液化涂料。然后将液化的涂层从模具中排出，并且由涂料留下的空腔填充有粉末状基体材料，然后在高温下用粘合剂合金渗透以在钻头体部分上形成固体渗透的基质层，对应于以前应用的蜡层。

9. 发明授权

US5667028A Multiple diamond layer polycrystalline diamond composite cutters 失效
标题翻译：多金刚石层多晶金刚石复合切割机
公开(公告)号：US5667028A
公开(公告)日：1997-09-16
申请号：US518036
申请日：1995-08-22
申请人： David Truax , Roger Brown
发明人： David Truax , Roger Brown
IPC分类号： B23P15/28 , E21B10/56 , E21B10/567 , E21B10/46
CPC分类号： E21B10/567 , B23P15/28
摘要： An improved polycrystalline diamond composite ("PDC") cutter comprising a single or a plurality of secondary PDC cutting surfaces in addition to a primary PDC cutting surface, wherein at least two of the cutting surfaces are non-abutting, resulting in enhanced cutter efficiency and useful life. The primary PDC cutting surface is a PDC layer on one end face of the cutter. The secondary PDC cutting surfaces are formed by sintering and compacting polycrystalline diamond in grooves formed on the cutter body outer surface. The secondary cutting surfaces can have different shapes such as circles, triangles, rectangles, crosses, finger-like shapes, or rings.
摘要翻译：一种改进的多晶金刚石复合材料（“PDC”）切割器，其除了主PDC切割表面之外还包括单个或多个次级PDC切割表面，其中至少两个切割表面不邻接，导致提高的切割效率和有用的生活。主PDC切割表面是切割器一端面上的PDC层。二次PDC切割表面通过在切割器主体外表面上形成的凹槽中烧结和压制多晶金刚石而形成。二次切割表面可以具有不同的形状，例如圆形，三角形，矩形，十字形，手指形状或环形。

10. 发明授权

US4749363A Extension cord safety box 失效
标题翻译：延长线安全箱
公开(公告)号：US4749363A
公开(公告)日：1988-06-07
申请号：US25020
申请日：1987-03-12
申请人： Robert Luska , David Truax
发明人： Robert Luska , David Truax
IPC分类号： H01R13/44 , H01R13/50
CPC分类号： H01R13/44
摘要： A junction box for extension cords which serves to secure the point at which extension cords are joined together in order to prevent access to such juncture and protect against an electric shock.
摘要翻译：用于延长线的接线盒，用于固定延伸线连接在一起的点，以防止接触这种接合并防止电击。

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