发明名称 Connector and rod lock for a drilling rod
摘要 The connection has a plug (5) provided on an end of one of two pipe sections and comprising one of a helical guide protrusion (6) or a guide groove (7). A connecting bushing is arranged on an end of the other pipe section and comprises one of a guide groove or a helical guide protrusion meshing with the helical guide protrusion or guide groove of the plug. The guide protrusions and the guide grooves comprise radially oriented contact surfaces (10). A cylindrical bearing surface (19) receives a bearing ring. An independent claim is also included for a pipe section for a drill pipe.
申请公布号 EP2487321(A2) 申请公布日期 2012.08.15
申请号 EP20120000706 申请日期 2012.02.02
申请人 TRACTO-TECHNIK GMBH & CO. KG 发明人 FISCHER, SEBASTIAN;GROBBEL, RAIMUND
分类号 E21B7/00;E21B17/02;E21B17/04;E21B17/046;E21B17/18;E21B21/12 主分类号 E21B7/00
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