发明名称 |
Gripper for screwed pipe joints |
摘要 |
The invention relates to a gripper for screwed pipe joints which is to be used for screwing pipes and has a gripper body (4), an opening flap (6) which can be locked and unlocked with the gripper body, and a screwing device which has clamping members for the pipes. The gripper body (4) and the opening flap (6) have two axially spaced screwing devices (34, 34'). The screwing devices can be braced separately with the pipes, locked separately with the gripper body, and displaced separately by rotation. This construction allows the screwing and unscrewing of the pipes to be performed in a simpler, quicker and more reliable fashion. <IMAGE>
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申请公布号 |
DE3435988(A1) |
申请公布日期 |
1986.04.10 |
申请号 |
DE19843435988 |
申请日期 |
1984.10.01 |
申请人 |
DREYFUSS, WILFRIED, 3111 EIMKE, DE;REMP JUN., THOMAS E., HOUSTON, TEX., US |
发明人 |
DER ERFINDER WIRD NACHTRAEGLICH BENANNT |
分类号 |
E21B19/16;(IPC1-7):E21B19/16 |
主分类号 |
E21B19/16 |
代理机构 |
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主权项 |
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地址 |
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