发明名称 |
Segmented bottom guide for string elevator assembly |
摘要 |
The present invention is directed to a segmented bottom guide for directing the top of a tubular member into and through a bore in the bottom of a tapered bowl so that the tubular member can be engaged by pipe slips. One embodiment of the segmented bottom guide of the present invention comprises a bottom guide retainer having a plurality of chambers for being disposed intermediate the top of a bell guide and the bottom of the tapered bowl. The bottom guide segments are radially received into, and securable in, the retainer to therein and together form a generally conical frustum generally aligned with and intermediate the top of the bell guide and the opening of the tapered bowl.
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申请公布号 |
US7997333(B2) |
申请公布日期 |
2011.08.16 |
申请号 |
US20070846169 |
申请日期 |
2007.08.28 |
申请人 |
FRANK'S CASTING CREW AND RENTAL TOOLS, INC. |
发明人 |
ANGELLE JEREMY R.;MOSING DONALD E. |
分类号 |
E21B19/07;E21B19/24 |
主分类号 |
E21B19/07 |
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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