公开(公告)号：US20050077092A1

公开(公告)日：2005-04-14

申请号：US10923653

申请日：2004-08-20

申请人： Zhou Yong ,  Jim Minikus ,  Amardeep Singh ,  Quan Nguyen ,  Sharath Kolachalam

发明人： Zhou Yong ,  Jim Minikus ,  Amardeep Singh ,  Quan Nguyen ,  Sharath Kolachalam

IPC分类号： E21B10/16 ,  E21B10/50 ,  E21B10/00

CPC分类号： E21B10/50 ,  E21B10/16

摘要： Disclosed are a variety of arcuate-shaped inserts for drill bits, and in particular, for placement in rolling cone cutters of drill bits. The arcuate inserts include 360° or ring-shaped inserts, as well as inserts of smaller arcuate length. The arcuate inserts are suitable for use in all surfaces of the rolling cone cutter, and in other locations in drill bits, and may have specialized cutting surfaces and material enhancements to enhance their cutting duty performance. Certain arcuate inserts may include stress relieving discontinuities such that, upon assembly into the cone or during drilling, the arcuate inserts may fragment in a controlled and predicted manner into shorter arcuate lengths.

摘要翻译： 公开了用于钻头的各种弧形插入件，特别地，用于放置在钻头的滚动锥形切割器中。 弧形刀片包括360°或环形刀片，以及较小弓形长度的刀片。 弧形插入件适用于滚动圆锥切割机的所有表面，以及钻头中的其他位置，并且可具有专门的切割表面和材料增强功能，以增强其切割性能。 某些弓形刀片可包括应力消除不连续性，使得在组装到锥体中或在钻孔期间，弓形刀片可以以受控和预测的方式分段成较短的弓形长度。

公开(公告)号：US07331410B2

公开(公告)日：2008-02-19

申请号：US10923653

申请日：2004-08-20

申请人： Zhou Yong ,  Jim Minikus ,  Armardeep Singh ,  Quan Nguyen ,  Sharath Kolachalam

发明人： Zhou Yong ,  Jim Minikus ,  Armardeep Singh ,  Quan Nguyen ,  Sharath Kolachalam

IPC分类号： E21B10/08

CPC分类号： E21B10/50 ,  E21B10/16

摘要： Disclosed are a variety of arcuate-shaped inserts for drill bits, and in particular, for placement in rolling cone cutters of drill bits. The arcuate inserts include 360° or ring-shaped inserts, as well as inserts of smaller arcuate length. The arcuate inserts are suitable for use in all surfaces of the rolling cone cutter, and in other locations in drill bits, and may have specialized cutting surfaces and material enhancements to enhance their cutting duty performance. Certain arcuate inserts may include stress relieving discontinuities such that, upon assembly into the cone or during drilling, the arcuate inserts may fragment in a controlled and predicted manner into shorter arcuate lengths.

摘要翻译： 公开了用于钻头的各种弧形插入件，特别地，用于放置在钻头的滚动锥形切割器中。 弧形刀片包括360°或环形刀片，以及较小弓形长度的刀片。 弧形插入件适用于滚动圆锥切割机的所有表面，以及钻头中的其他位置，并且可具有专门的切割表面和材料增强功能，以增强其切割性能。 某些弓形刀片可包括应力消除不连续性，使得在组装到锥体中或在钻孔期间，弓形刀片可以以受控和预测的方式分段成较短的弓形长度。

公开(公告)号：US06823951B2

公开(公告)日：2004-11-30

申请号：US10189966

申请日：2002-07-03

申请人： Zhou Yong ,  Jim Minikus ,  Amardeep Singh

发明人： Zhou Yong ,  Jim Minikus ,  Amardeep Singh

IPC分类号： E21B1008

CPC分类号： E21B10/50 ,  E21B10/16

摘要： Disclosed are a variety of arcuate-shaped inserts for drill bits, and in particular, for placement in rolling cone cutters of drill bits. The arcuate inserts include 360 degree or ring-shaped inserts, as well as inserts of smaller arcuate length. The arcuate inserts may include stress relieving discontinuities such that, upon assembly into the cone, the arcuate inserts fragment in a controlled and predicted manner into shorter arcuate lengths. The arcuate inserts are suitable for use in all surfaces of the rolling cone cutter, and in other locations in drill bits, and may have specialized cutting surfaces and material enhancements to enhance their cutting duty performance.

摘要翻译： 公开了用于钻头的各种弧形插入件，特别地，用于放置在钻头的滚动锥形切割器中。 弧形刀片包括360度或环形刀片，以及较小弓形长度的刀片。 弧形插入物可以包括应力消除不连续性，使得在组装到锥体中时，弓形插入件以受控和预测的方式分段成较短的弓形长度。 弧形插入件适用于滚动圆锥切割机的所有表面，以及钻头中的其他位置，并且可具有专门的切割表面和材料增强功能，以增强其切割性能。