公开(公告)号：US10323461B2

公开(公告)日：2019-06-18

申请号：US14894182

申请日：2014-05-27

申请人： David Hanns

发明人： David Hanns

IPC分类号： E21B10/18 ,  E21B10/08

摘要： A drill bit including: a main body portion including three legs extending therefrom, the three legs arranged around a periphery of the main body portion; a conical cutter rotatably mounted on each leg, the conical cutters positioned to allow a clearance between the conical cutter and the main body portion; a protrusion extending from the main body portion into the clearance, wherein the protrusion encourages drill cuttings away from a base region of the main body portion where the legs meet the main body portion.

公开(公告)号：US20160123084A1

公开(公告)日：2016-05-05

申请号：US14894182

申请日：2014-05-27

申请人： David HANNS

发明人： David Hanns

IPC分类号： E21B10/08

CPC分类号： E21B10/08

摘要： A drill bit including: a main body portion including three legs extending therefrom, the three legs arranged around a periphery of the main body portion; a conical cutter rotatably mounted on each leg, the conical cutters positioned to allow a clearance between the conical cutter and the main body portion; a protrusion extending from the main body portion into the clearance, wherein the protrusion encourages drill cuttings away from a base region of the main body portion where the legs meet the main body portion.

摘要翻译： 一种钻头，包括：主体部分，包括从其延伸的三条腿，所述三条腿围绕主体部分的周边布置; 可旋转地安装在每个腿上的锥形切割器，所述锥形切割器被定位成允许锥形切割器和主体部分之间的间隙; 从所述主体部分延伸到所述间隙中的突起，其中所述突起促使钻头远离所述主体部分的与所述主体部分相遇的基部区域。