发明授权
- 专利标题： Shaped inserts with increased retention force
- 专利标题（中）： 成型刀片具有增加的保持力
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申请号： US10917229申请日： 2004-08-12
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公开(公告)号： US07416035B2公开(公告)日： 2008-08-26
- 发明人: Ramamurthy Viswanadham , Lance T. Richman , Chris E. Cawthorne , Anthony Griffo
- 申请人： Ramamurthy Viswanadham , Lance T. Richman , Chris E. Cawthorne , Anthony Griffo
- 申请人地址： US TX Houston
- 专利权人： Smith International, Inc.
- 当前专利权人： Smith International, Inc.
- 当前专利权人地址： US TX Houston
- 代理机构： Osha Liang LLP
- 主分类号： E21B10/16
- IPC分类号： E21B10/16
摘要：
A shaped insert that includes a top portion, and a grip length, wherein the grip length is modified to have a non-uniform cross sectional area is disclosed. In another case, a shaped insert includes a top portion, and a grip length, wherein the grip length is modified such that the insert is non-cylindrical. In another case, a shaped insert includes a top portion, and a grip length, wherein the grip length is coated in a non-uniform manner.
公开/授权文献
- US20050067196A1 Shaped inserts with increased retention force 公开/授权日：2005-03-31
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