发明名称 |
Apparatus and method for facilitating handling pipe |
摘要 |
An apparatus for handling a pipe having a body, the body defining an open throat that is adapted to receive a pipe, a plurality of jaws hingedly mounted to the body that are adapted to engage a pipe while preventing the pipe from engaging the body, each of the jaws defining a concave portion that is adapted to engage the pipe, the apparatus further including respective over-center mechanisms that are arranged between and operatively coupled to the body and each one of the plurality of jaws, each respective over-center mechanism being adapted to inhibit a respective one of the plurality of jaws from closing when jaws are open and to inhibit a respective one of the plurality of jaws from opening and disengaging from a pipe when the jaws are closed on the pipe. |
申请公布号 |
US8632111(B2) |
申请公布日期 |
2014.01.21 |
申请号 |
US20040537638 |
申请日期 |
2004.08.09 |
申请人 |
KRIJNEN ANTON;DEKEIJZER NEILS;MULDER RENE;BERRY JOE;VARCO I/P, INC. |
发明人 |
KRIJNEN ANTON;DEKEIJZER NEILS;MULDER RENE;BERRY JOE |
分类号 |
E21B19/00;E21B19/06;E21B19/20 |
主分类号 |
E21B19/00 |
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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