| 发明名称 |
JAW ASSEMBLY |
| 摘要 |
An apparatus is taught for making up and breaking out well bore tubulars, comprising a tong assembly and a backup assembly operatively connected to the tong assembly, wherein the tong assembly and the backup assembly are operated in the absence of hydraulic power. |
| 申请公布号 |
EP2999843(A1) |
申请公布日期 |
2016.03.30 |
| 申请号 |
EP20140822585 |
申请日期 |
2014.04.24 |
| 申请人 |
MCCOY GLOBAL INC. |
发明人 |
ZEPEDA, WILLIAM A.;JOHNSON, PHILIP CHASE |
| 分类号 |
E21B19/16;B23B31/171;B23B31/18;B23P19/04;B23Q3/14 |
主分类号 |
E21B19/16 |
| 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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