发明名称 |
EXTERNAL WATER DELIVERY SYSTEM FOR ROCK DRILLS |
摘要 |
<p>An external water delivery system includes a water box front head, a collet configured to interface with the water box front head, a polymer sleeve configured to be positioned between the water box front head and the collet, a shank, and at least one seal positioned within the sleeve. The sleeve and seals are configured to provide a water chamber when coupled to the shank. An inner of the sleeve provides a bearing surface for the shank.</p> |
申请公布号 |
WO2010027526(A1) |
申请公布日期 |
2010.03.11 |
申请号 |
WO2009US31598 |
申请日期 |
2009.01.21 |
申请人 |
LONGYEAR TM, INC.;MURRAY, WILLIAM, JAMES |
发明人 |
MURRAY, WILLIAM, JAMES |
分类号 |
E21B7/02;E21B7/06;E21D3/00;E21D7/00 |
主分类号 |
E21B7/02 |
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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