发明授权
- 专利标题： Drill bit with a retained jack element
- 专利标题（中）： 用保留的千斤顶钻头钻
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申请号： US12824199申请日： 2010-06-27
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公开(公告)号： US08950517B2公开(公告)日： 2015-02-10
- 发明人: David R. Hall , Francis Leany , Joe Fox , Tyson J. Wilde , Boyd Black
- 申请人： David R. Hall , Francis Leany , Joe Fox , Tyson J. Wilde , Boyd Black
- 申请人地址： US TX Houston
- 专利权人： Schlumberger Technology Corporation
- 当前专利权人： Schlumberger Technology Corporation
- 当前专利权人地址： US TX Houston
- 代理机构： Osha Liang LLP
- 主分类号： E21B10/36
- IPC分类号： E21B10/36 ; E21B7/06 ; E21B4/14 ; E21B10/26 ; E21B10/54 ; E21B10/58 ; E21B10/62 ; E21B47/12
摘要：
A drill bit having a bit body intermediate a shank and a working face having at least one cutting insert. A bore is formed in the working face co-axial within an axis of rotation of the drill bit. A jack element is retained within the bore by a retaining element that intrudes a diameter of the bore.
公开/授权文献
- US20110048811A1 DRILL BIT WITH A RETAINED JACK ELEMENT 公开/授权日：2011-03-03
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