发明名称 |
WEAR RESISTANT MATERIAL AT THE SHIRTTAIL EDGE AND LEADING EDGE OF A ROTARY CONE DRILL BIT |
摘要 |
A rotary cone drill bit includes: a body, a leg depending from the body, a bearing shaft extending from the leg and a cone mounted to the bearing shaft. The leg includes a surface edge that is subject to wear during operation of the bit. A bottom surface of a hard material plate having an edge is attached to a conforming surface of the leg in a position where the edge of the hard material plate defines at least a portion of the surface edge of the leg. The attachment of the surfaces is made using a flowable material such as a brazing material. |
申请公布号 |
US2012080236(A1) |
申请公布日期 |
2012.04.05 |
申请号 |
US20100896406 |
申请日期 |
2010.10.01 |
申请人 |
BOUAPHANH INPENG;VAREL INTERNATIONAL, IND., L.P. |
发明人 |
BOUAPHANH INPENG |
分类号 |
E21B10/00 |
主分类号 |
E21B10/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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