| 发明名称 |
THRUST FACE BEARING STRUCTURE FOR ROLLING CUTTER DRILL BIT |
| 摘要 |
<p>A rolling cutter drill bit is disclosed having an improved thrust face bearing structure which utilizes alternating segments of at least two different bearing metals. The composite thrust face bearing structure disclosed has a first metal selected for a low temperature operation, and at least one additional metal selected for high temperature operation.</p> |
| 申请公布号 |
CA1164448(A) |
申请公布日期 |
1984.03.27 |
| 申请号 |
CA19820394162 |
申请日期 |
1982.01.14 |
| 申请人 |
REED ROCK BIT COMPANY |
发明人 |
CHILDERS, JOHN S.;MAYO, TERRY H. |
| 分类号 |
E21B10/22;(IPC1-7):E21B10/22 |
主分类号 |
E21B10/22 |
| 代理机构 |
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