发明名称 |
FLUSH MOUNTED SPIDER ASSEMBLY |
摘要 |
A rotary table has a non-circular drive recess in the central opening which carries an assembly of mounting structures and slip carriers that when joined together fit in the non-circular drive recess. The plurality of slip carriers are distributed about the periphery of the drive recess are extended down into the central opening of the rotary table. A slip and die arrangement is situated on each slip carrier. Slip manipulation drive cylinders, are distributed about the assembly periphery and move a synchronizer plate that moves the slips vertically to grip or release pipe extending through the opening of the rotary table. |
申请公布号 |
SG11201607837R(A) |
申请公布日期 |
2016.10.28 |
申请号 |
SG11201607837R |
申请日期 |
2015.03.24 |
申请人 |
DRAWWORKS LP |
发明人 |
MULLINS, ALBERT, AUGUSTUS;HICKL, MATTHEW, J. |
分类号 |
E21B19/10;E21B7/00;E21B15/00 |
主分类号 |
E21B19/10 |
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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