发明名称 PIPE THREAD PROTECTOR
摘要 <p>A protector for protecting a pipe thread having a thread pitch P1 has a central axis, a first end, second end opposite the first end, and comprises a base at the first end. In addition, the protector comprises an annular connecting member extending axially from the base to the second end. The connecting member has a radially inner surface and a radially outer surface. The connecting member also includes a helical thread extending radially outward from the radially inner surface or radially inward from the radially outer surface. The helical thread has a thread pitch P2 that is greater than the thread pitch P1 of the pipe thread.</p>
申请公布号 WO2011140014(A2) 申请公布日期 2011.11.10
申请号 WO2011US34891 申请日期 2011.05.03
申请人 DRILLTEC PATENTS & TECHNOLOGIES CORPORATION;BAKER, BRYAN C.;CLEM, DAVID W.;LENDERMON, JEFFREY 发明人 BAKER, BRYAN C.;CLEM, DAVID W.;LENDERMON, JEFFREY
分类号 F16L57/00;F16L55/11;F16L55/115;F16L57/02;F16L57/06;F16L58/00 主分类号 F16L57/00
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