发明名称 ROD COUPLING HAVING A SACRIFICIAL ELEMENT
摘要 The invention relates to a coupling system for rod segments for use in horizontal earth boring, wherein the ends of the rod segments are interlinked via a separate sacrificial element which can be used as a predetermined breaking point or which allows the rod segments to be pivoted relative each other.
申请公布号 US2010150643(A1) 申请公布日期 2010.06.17
申请号 US20080594691 申请日期 2008.04.04
申请人 TRACTO-TECHNIK GMBH & CO. KG 发明人 PUTTMANN FRANZ-JOSEF
分类号 F16D9/06;B23P6/00 主分类号 F16D9/06
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