DIAMOND IMPREGNATED BIT WITH AGGRESSIVE FACE PROFILE
摘要
A drill bit includes a crown defining a central axis. The crown includes at least one segment. The segment includes a planar portion and a plurality of surface features continuous with and extending away from the planar portion. The surface features are discontinuous within the segment with respect to a first arced path defined at a first radial distance from the central axis.
申请公布号
WO2011020111(A2)
申请公布日期
2011.02.17
申请号
WO2010US45650
申请日期
2010.08.16
申请人
LONGYEAR TM, INC.;LAMBERT, CHRISTIAN, M.;RUPP, MICHAEL, D.