发明名称 SINGLE-WATERWAY DRILL BITS AND SYSTEMS FOR USING SAME
摘要 Implementations include drilling tools having axially-tapered waterways that can increase flushing and bit life, while also decreasing clogging. The drilling tool can have a single notch extending into the cutting face and a plurality of bores extending from the cutting face to an interior space of the drilling tool. Implementations also include drilling systems including drilling tools having a single notch and a plurality of bores.
申请公布号 EP3129576(A1) 申请公布日期 2017.02.15
申请号 EP20150776006 申请日期 2015.04.06
申请人 Longyear TM, Inc. 发明人 PEARCE, Cody, A.;RUPP, Michael, D.;LAMBERT, Christian, M.
分类号 E21B10/02;E21B10/48;E21B10/60 主分类号 E21B10/02
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