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1. 发明授权

US07600589B2 Rotary drill bits 有权
标题翻译：旋转钻头
公开(公告)号：US07600589B2
公开(公告)日：2009-10-13
申请号：US11947624
申请日：2007-11-29
申请人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
发明人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
IPC分类号： E21B10/36
CPC分类号： B23K31/02 , E21B10/00 , E21B10/42
摘要： A shank configuration for rotary drill bits, is disclosed for positioning of the shank in relation to the bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90%. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.
摘要翻译：公开了一种用于旋转钻头的柄构造，用于相对于钻头体定位柄。柄的锥形表面或特征可以被构造和定尺寸成匹配地接合钻头体的互补成形的表面或特征，从而相对于钻头体中心或定位。可变形元件可以设置在柄和钻头体之间。另外，柄部可以包含碳当量小于约0.35％的材料。可以采用多通焊接方法将柄和钻头体彼此固定，其中可以形成焊缝，使得一个焊缝起始于不同于其紧接在前的焊缝的起始圆周位置的周向位置至少约90° ％。此外，可以在多遍焊缝内形成应力状态。还公开了一种制造方法。

2. 发明授权

US07472764B2 Rotary drill bit shank, rotary drill bits so equipped, and methods of manufacture 有权
标题翻译：旋转钻头柄，旋转钻头如此配备，以及制造方法
公开(公告)号：US07472764B2
公开(公告)日：2009-01-06
申请号：US11090932
申请日：2005-03-25
申请人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
发明人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
IPC分类号： E21B10/36
CPC分类号： B23K31/02 , E21B10/00 , E21B10/42
摘要： A shank configuration for rotary drill bits is disclosed for positioning of the shank in relation to the bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90°. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.
摘要翻译：公开了一种用于旋转钻头的柄构造，用于相对于钻头体定位柄。柄的锥形表面或特征可以被构造和定尺寸成匹配地接合钻头体的互补成形的表面或特征，从而相对于钻头体中心或定位。可变形元件可以设置在柄和钻头体之间。另外，柄可以包含碳当量小于约0.35％的材料。可以采用多通焊接方法将柄和钻头体彼此固定，其中可以形成焊缝，使得一个焊缝起始于不同于其紧接在前的焊缝的起始圆周位置的周向位置至少约90° °。此外，可以在多遍焊缝内形成应力状态。还公开了一种制造方法。

3. 发明申请

US20100012392A1 SHANK STRUCTURE FOR ROTARY DRILL BITS 有权
标题翻译：旋转钻机组的SHANK结构
公开(公告)号：US20100012392A1
公开(公告)日：2010-01-21
申请号：US12566922
申请日：2009-09-25
申请人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
发明人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
IPC分类号： E21B10/42
CPC分类号： B23K31/02 , E21B10/00 , E21B10/42
摘要： A shank configuration for rotary drill bits is disclosed for positioning of the shank in relation to the bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90°. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.
摘要翻译：公开了一种用于旋转钻头的柄构造，用于相对于钻头体定位柄。柄的锥形表面或特征可以被构造和定尺寸成匹配地接合钻头体的互补成形的表面或特征，从而相对于钻头体中心或定位。可变形元件可以设置在柄和钻头体之间。另外，柄可以包含碳当量小于约0.35％的材料。可以采用多通焊接方法将柄和钻头体彼此固定，其中可以形成焊缝，使得一个焊缝起始于不同于其紧接在前的焊缝的起始圆周位置的周向位置至少约90° °。此外，可以在多遍焊缝内形成应力状态。还公开了一种制造方法。

4. 发明授权

US07861806B2 Shank structure for rotary drill bits 有权
标题翻译：旋转钻头柄结构
公开(公告)号：US07861806B2
公开(公告)日：2011-01-04
申请号：US12566922
申请日：2009-09-25
申请人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
发明人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
IPC分类号： E21B10/36
CPC分类号： B23K31/02 , E21B10/00 , E21B10/42
摘要： A shank configuration for rotary drill bits is disclosed for positioning of the shank in relation to a bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90°. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.
摘要翻译：公开了一种用于旋转钻头的柄构造，用于相对于钻头体定位柄。柄的锥形表面或特征可以被构造和定尺寸成匹配地接合钻头体的互补成形的表面或特征，从而相对于钻头体中心或定位。可变形元件可以设置在柄和钻头体之间。另外，柄可以包含碳当量小于约0.35％的材料。可以采用多通焊接方法将柄和钻头体彼此固定，其中可以形成焊缝，使得一个焊缝起始于不同于其紧接在前的焊缝的起始圆周位置的周向位置至少约90° °。此外，可以在多遍焊缝内形成应力状态。还公开了一种制造方法。

5. 发明授权

US07594454B2 Methods of fabricating rotary drill bits 有权
标题翻译：制造旋转钻头的方法
公开(公告)号：US07594454B2
公开(公告)日：2009-09-29
申请号：US11947613
申请日：2007-11-29
申请人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
发明人： Anton F. Zahradnik , Eric C. Sullivan , R. Scot Smith , Daniel E. Ruff , Danielle V. Roberts , Alan J. Massey
IPC分类号： B21K5/04 , E21B10/36
CPC分类号： B23K31/02 , E21B10/00 , E21B10/42
摘要： A shank configuration for rotary drill bits is disclosed for positioning of the shank in relation to the bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90°. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.
摘要翻译：公开了一种用于旋转钻头的柄构造，用于相对于钻头体定位柄。柄的锥形表面或特征可以被构造和定尺寸成匹配地接合钻头体的互补成形的表面或特征，从而相对于钻头体中心或定位。可变形元件可以设置在柄和钻头体之间。另外，柄可以包含碳当量小于约0.35％的材料。可以采用多通焊接方法将柄和钻头体彼此固定，其中可以形成焊缝，使得一个焊缝起始于不同于其紧接在前的焊缝的起始圆周位置的周向位置至少约90° °。此外，可以在多遍焊缝内形成应力状态。还公开了一种制造方法。

6. 发明授权

US08141664B2 Hybrid drill bit with high bearing pin angles 失效
标题翻译：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。

7. 发明授权

US6142249A Earth-boring bit with improved bearing seal 有权
标题翻译：具有改进的轴承密封的钻孔钻头
公开(公告)号：US6142249A
公开(公告)日：2000-11-07
申请号：US471218
申请日：1999-12-23
申请人： Anton F. Zahradnik , Eric C. Sullivan , Chih Lin , Terry J. Koltermann , Scott R. Schmidt
发明人： Anton F. Zahradnik , Eric C. Sullivan , Chih Lin , Terry J. Koltermann , Scott R. Schmidt
IPC分类号： E21B10/22 , E21B10/25 , F16J15/34 , F16C33/72
CPC分类号： E21B10/25 , F16J15/344
摘要： An earth-boring bit has a bit body and at least one bearing shaft depending inwardly and downwardly from the bit body. The bearing shaft has a base where it joins the bit body. At least one cutter is mounted for rotation on the bearing shaft and has radial and axial surfaces that cooperate with the base of the bearing shaft to define a bearing seal gland. A bearing is defined between the cutter and bearing shaft. A seal element is disposed in the seal gland. A secondary seal is disposed in the seal gland opposite the cutter axial surface and cooperates with the seal element to at least partially seal the gland against entry of debris from the exterior of the bit.
摘要翻译：钻头具有一个位体，并且至少一个轴承轴从钻头体向内和向下偏离。轴承座有一个底座，它连接钻头体。安装至少一个切割器用于在轴承轴上旋转并且具有径向和轴向表面，其与轴承轴的基部配合以限定轴承密封压盖。在切割器和轴承轴之间限定了一个轴承。密封元件设置在密封压盖中。二次密封件设置在与切割器轴向表面相对的密封压盖中，并与密封元件配合，以至少部分地密封压盖以防止碎屑从钻头的外部进入。

8. 发明申请

US20090014217A1 Roller Cone Bit Bearing, and Bearing Materials 审中-公开
标题翻译：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。

9. 发明授权

US6026917A Earth-boring bit with improved bearing seal 失效
公开(公告)号：US6026917A
公开(公告)日：2000-02-22
申请号：US993943
申请日：1997-12-18
申请人： Anton F. Zahradnik , Eric C. Sullivan , Chih Lin , Terry J. Koltermann , Scott R. Schmidt
发明人： Anton F. Zahradnik , Eric C. Sullivan , Chih Lin , Terry J. Koltermann , Scott R. Schmidt
IPC分类号： E21B10/22 , E21B10/25 , F16J15/34 , F16C33/72
CPC分类号： E21B10/25 , F16J15/344
摘要： An earth-boring bit has a bit body and at least one bearing shaft depending inwardly and downwardly from the bit body. The bearing shaft has a base where it joins the bit body. At least one cutter is mounted for rotation on the bearing shaft and has radial and axial surfaces that cooperate with the base of the bearing shaft to define a bearing seal gland. A bearing is defined between the cutter and bearing shaft. A seal element is disposed in the seal gland. A secondary seal is disposed in the seal gland opposite the cutter axial surface and cooperates with the seal element to at least partially seal the gland against entry of debris from the exterior of the bit.

10. 发明授权

US08678111B2 Hybrid drill bit and design method 有权
标题翻译：混合钻头和设计方法
公开(公告)号：US08678111B2
公开(公告)日：2014-03-25
申请号：US12271033
申请日：2008-11-14
申请人： Anton F. Zahradnik , Rudolf Carl Pessier , Don Q. Nguyen , Matthew J. Meiners , Karlos B. Cepeda , Michael S. Damschen , Mark P. Blackman , Jack T. Oldham , Ronny D. McCormick
发明人： Anton F. Zahradnik , Rudolf Carl Pessier , Don Q. Nguyen , Matthew J. Meiners , Karlos B. Cepeda , Michael S. Damschen , Mark P. Blackman , Jack T. Oldham , Ronny D. McCormick
IPC分类号： E21B10/14 , E21B10/16
CPC分类号： E21B10/14 , E21B10/16 , E21B10/42
摘要： A hybrid earth-boring bit comprising a bit body having a central axis, at least one, preferably three fixed blades, depending downwardly from the bit body, each fixed blade having a leading edge, and at least one rolling cutter, preferably three rolling cutters, mounted for rotation on the bit body. A rolling cutter is located between two fixed blades.
摘要翻译：一种混合式钻孔钻头，包括具有中心轴线的钻头体，至少一个，优选三个固定刀片，从钻头体向下倾斜，每个固定刀片具有前缘，以及至少一个滚刀，优选三个滚刀，安装在钻头体上旋转。轧机位于两个固定刀片之间。

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