| 发明名称 |
SYNERGIC SURFACE MODIFICATION FOR BEARING SEAL |
| 摘要 |
The present invention relates to a method and apparatus for forming a dynamic seal between two surfaces. More specifically, the invention relates to creating a textured surface with a thin, hard coating on a metallic annular sealing ring such as the sealing ring used in an earth boring drill bit.
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| 申请公布号 |
US2011048810(A1) |
申请公布日期 |
2011.03.03 |
| 申请号 |
US20090548238 |
申请日期 |
2009.08.26 |
| 申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
LIN CHIH;DICK AARON J. |
| 分类号 |
E21B10/25;B23P25/00;F16J15/16 |
主分类号 |
E21B10/25 |
| 代理机构 |
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