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    HYBRID DRILL BIT WITH HIGH PILOT-TO-JOURNAL DIAMETER RATIO
    11.
    发明申请
    HYBRID DRILL BIT WITH HIGH PILOT-TO-JOURNAL DIAMETER RATIO 审中-公开
    混合钻头与高引导到日期直径比

    公开(公告)号：US20100155146A1

    公开(公告)日：2010-06-24

    申请号：US12481410

    申请日：2009-06-09

    申请人： Don Q. Nguyen ,  Anton F. Zahradnik ,  Rudolf C. Pessier

    发明人： Don Q. Nguyen ,  Anton F. Zahradnik ,  Rudolf C. Pessier

    IPC分类号： E21B10/14 ,  E21B10/00

    CPC分类号： E21B10/14 ,  E21B10/22

    摘要： The invention disclosed and taught herein is directed to an improved hybrid drill bit and associated elements having at least two rolling cutters, each rotatable around separate spindles on the bit, and at least one fixed blade. The improved drill bit expands the pilot pin to journal diameter ratio within the body of the rolling cutter, but within the confines of the allowable space of the rolling cutter.

    摘要翻译： 本文公开和教导的本发明涉及一种改进的混合钻头和相关联的元件，其具有至少两个滚动切割器，每个滚动切割器可围绕钻头上的分离的主轴旋转，以及至少一个固定刀片。 改进的钻头将导向销扩展到滚动切割机主体内的轴颈直径比，但是在滚动切割器的允许空间的范围内。

    Roller Cone Bit Bearing, and Bearing Materials
    13.
    发明申请
    Roller Cone Bit Bearing, and Bearing Materials 审中-公开
    滚子轴承和轴承材料

    公开(公告)号：US20090014217A1

    公开(公告)日：2009-01-15

    申请号：US12172364

    申请日：2008-07-14

    申请人： Anton F. Zahradnik ,  Terry J. Koltermann ,  Aaron J. Dick ,  Don Q. Nguyen ,  Eric C. Sullivan ,  Greg Ricks

    发明人： Anton F. Zahradnik ,  Terry J. Koltermann ,  Aaron J. Dick ,  Don Q. Nguyen ,  Eric C. Sullivan ,  Greg Ricks

    IPC分类号： E21B10/00

    CPC分类号： E21B10/22 ,  F16C33/121 ,  F16C2352/00

    摘要： A journal bearing element for use in forming a roller cone bit coupled to a bearing shaft to prevent circumferential sliding. Also included are material compositions of the journal bearing element. A journal bearing element is fixed in place relative to a head section and comprised of dense high purity powdered metal alloys with uniform micro-structure. A preferred material is comprised of a metal made of a carbon content of about 2.3% by weight, chromium of about 14% by weight, vanadium of about 9% by weight, and molybdenum at about 1% by weight.

    摘要翻译： 一种轴颈轴承元件，用于形成与轴承轴联接以防止周向滑动的辊锥头。 还包括轴颈轴承元件的材料组成。 轴颈轴承元件相对于头部部分固定在适当位置，并且由具有均匀微观结构的致密高纯度粉末金属合金组成。 优选的材料由碳含量为约2.3重量％，约14重量％的铬，约9重量％的钒和约1重量％的钼制成的金属组成。

    Bearing insert sleeve for roller cone bit
    14.
    发明授权
    Bearing insert sleeve for roller cone bit 有权
    滚子锥头轴承插入套筒

    公开(公告)号：US07387177B2

    公开(公告)日：2008-06-17

    申请号：US11582684

    申请日：2006-10-18

    申请人： Anton F. Zahradnik ,  Terry J. Koltermann ,  Don Q. Nguyen ,  Aaron J. Dick ,  Eric Sullivan ,  Scott Shiqiang Shu

    发明人： Anton F. Zahradnik ,  Terry J. Koltermann ,  Don Q. Nguyen ,  Aaron J. Dick ,  Eric Sullivan ,  Scott Shiqiang Shu

    IPC分类号： E21B10/22

    CPC分类号： E21B10/22 ,  E21B10/25

    摘要： An earth boring bit has a bearing pin with a sleeve mounted on it. The sleeve is fixed against rotation but able to float relative to the bearing pin. A cone fits over and forms a bearing surface with the sleeve. The sleeve and bearing pin are configured to have a clearance between them that has a forward portion that progressively decreases in a rearward direction. The clearance progressively decreases in a forward direction from the rearward end of the sleeve. The cone and the sleeve are able to tilt in unison with each other relative to the bearing pin when the bit is loaded.

    摘要翻译： 地镗头具有安装在其上的套筒的轴承销。 套筒固定不能旋转，但能相对于轴承销浮动。 锥体装配并与套筒形成支承​​面。 套筒和支承销构造成在它们之间具有间隙，其具有在向后方向上逐渐减小的前部。 间隙从套筒的后端沿向前方向逐渐减小。 当钻头加载时，锥体和套筒能够相对于轴承销彼此一致倾斜。

    Hybrid drill bit with high bearing pin angles
    15.
    发明授权
    Hybrid drill bit with high bearing pin angles 失效
    具有高轴承角度的混合钻头

    公开(公告)号：US08141664B2

    公开(公告)日：2012-03-27

    申请号：US12397094

    申请日：2009-03-03

    申请人： Anton F. Zahradnik ,  Don Q. Nguyen ,  Alan J. Massey

    发明人： Anton F. Zahradnik ,  Don Q. Nguyen ,  Alan J. Massey

    IPC分类号： E21B10/00

    CPC分类号： E21B10/14

    摘要： A hybrid drill bit having at least two rolling cutters, each rotatable around an axis of rotation, at least one of the rolling cutters having a high pin angle, and at least one fixed blade. The pin angle can encompass pin angles above 39 degrees to less than 393 degrees. The drill bit can allow the rolling cutters to engage a shoulder portion and/or gage portion of the bit profile and assist the fixed blade(s) in these areas. The at least two rolling cutters can be disposed at different pin angles.

    摘要翻译： 一种具有至少两个滚动切割器的混合钻头，每个滚动切割器可围绕旋转轴线旋转，至少一个滚刀具有高销角度，以及至少一个固定刀片。 销角度可以包括高于39度至小于393度的销角。 钻头可以允许滚切刀与钻头轮廓的肩部和/或计量部分接合，并帮助固定刀片在这些区域中。 至少两个轧制刀具可以以不同的销角设置。

    Wide groove roller cone bit
    18.
    发明授权
    Wide groove roller cone bit 有权
    宽槽辊锥头

    公开(公告)号：US07628230B2

    公开(公告)日：2009-12-08

    申请号：US11191379

    申请日：2005-07-28

    申请人： Rudolf C. Pessier ,  James L. Overstreet ,  Robert J. Buske ,  Don Q. Nguyen

    发明人： Rudolf C. Pessier ,  James L. Overstreet ,  Robert J. Buske ,  Don Q. Nguyen

    IPC分类号： E21B10/16

    CPC分类号： E21B10/16

    摘要： An earth boring bit has three cones, each cone being mounted for rotation about a cone axis while the bit rotates about a bit axis. An outer row and an adjacent row of cutting elements are integrally formed on each of the cones. Each of the cutting elements of the adjacent row on each of the cones has a crest extending perpendicular to a direction of rotation of the cone. Annular spaces are located between the outer row and the adjacent row on each of the cones. The annular space on one cone has a width that is less than the annular spaces on the other cones. The width of the narrowest annular space is greater than the width of the crests of the adjacent row.

    摘要翻译： 地镗头具有三个锥体，每个锥体安装成围绕锥轴线旋转，同时钻头围绕位轴旋转。 在每个锥体上一体地形成外排和相邻排的切割元件。 每个锥体上的相邻行的每个切割元件具有垂直于锥体的旋转方向延伸的波峰。 环形空间位于每个锥体上的外排和相邻行之间。 一个锥体上的环形空间的宽度小于其他锥体上的环形空间。 最窄的环形空间的宽度大于相邻行的波峰的宽度。