发明名称 OPTIMIZED GRIPPER BLOCK FOR COILED TUBING INJECTORS
摘要 An improved gripper block for use in grippingly engaging coil tubing, pipe, rod, cable, or like objects having various outside dimensions for ultimately applying a longitudinal load thereto. The subject gripper block has an attachment point preferably at or near the center of the block body for providing a means of attachment to at least one endless chain of an injector apparatus. The improved gripper block further has a pair of gripper surfaces formed thereon, these gripper surfaces are generally planar and tilted away from each other so as to diverge away from the tubing to be gripped, at approximately 90 degrees. The gripper surfaces thus preferably provide a V-shaped engagement configuration which is quite effective in gripping objects of differing outside dimensions with no or minimal scarring of such objects.
申请公布号 CA2197949(A1) 申请公布日期 1997.08.22
申请号 CA19972197949 申请日期 1997.02.19
申请人 HALLIBURTON ENERGY SERVICES, INC. 发明人 AVAKOV, VLADIMIR A.
分类号 B65G37/00;B65H51/14;B66D3/00;E21B19/22;(IPC1-7):E21B19/22 主分类号 B65G37/00
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