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
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