发明授权
- 专利标题： Earth boring bit with wear resistant bearing and seal
- 专利标题（中）： 地镗头带耐磨轴承和密封
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申请号： US12417416申请日： 2009-04-02
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公开(公告)号： US08196682B2公开(公告)日： 2012-06-12
- 发明人: Aaron J. Dick , Chih Lin
- 申请人： Aaron J. Dick , Chih Lin
- 申请人地址： US TX Houston
- 专利权人： Baker Hughes Incorporated
- 当前专利权人： Baker Hughes Incorporated
- 当前专利权人地址： US TX Houston
- 代理机构： Bracewell & Giuliani LLP
- 主分类号： E21B10/22
- IPC分类号： E21B10/22
摘要：
A roller cone bit is provided that includes a wear resistant coating applied to a bearing shaft, which is attached to a roller cone. The wear resistant coating can be a tungsten/tungsten carbide composite applied by chemical vapor deposition.
公开/授权文献
- US20090194339A1 EARTH BORING BIT WITH WEAR RESISTANT BEARING AND SEAL 公开/授权日：2009-08-06
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