发明名称 |
Thrust control apparatus |
摘要 |
A thrust absorber is interposed between a thruster and an anchor that cooperate to axially displace another member. The thrust absorber includes an enclosure fixed to the anchor and a retainer connected to the thruster. A biasing member is operably associated with the retainer. During an overthrust condition, the thruster imparts a thrust force to the member, but the member is not substantially axially displaced. In such a condition, the biasing member absorbs the thrust that the thruster would otherwise impart to the member. A dampener is also included to dampen the movement of the thruster and anchor when the anchor is no longer anchoring the thruster.
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申请公布号 |
US6736223(B2) |
申请公布日期 |
2004.05.18 |
申请号 |
US20010006877 |
申请日期 |
2001.12.05 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
ODELL, II ALBERT C.;EPPINK JAY M. |
分类号 |
E21B4/00;E21B17/07;(IPC1-7):E21B7/00 |
主分类号 |
E21B4/00 |
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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