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： US11774647申请日： 2007-07-09
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公开(公告)号： US07753144B2公开(公告)日： 2010-07-13
- 发明人: David R. Hall , Francis Leany , Joe Fox , Tyson J. Wilde , Boyd B. Black
- 申请人： David R. Hall , Francis Leany , Joe Fox , Tyson J. Wilde , Boyd B. 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： Holme Roberts & Owen LLP
- 主分类号： E21B10/26
- IPC分类号： E21B10/26
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
- US20080011522A1 Retaining Element for a Jack Element 公开/授权日：2008-01-17
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