发明名称 DRILL BIT CUTTING ARRAY HAVING DISCONTINUITIES THEREIN
摘要 The present invention comprises a cutting structure for earth boring drill bits and a bit including at least one such structure comprising a substantially planar array of cutting elements arranged in substantially contiguous mutual proximity, the array incorporating at least one discontinuity therein dividing it into a plurality of sub-arrays.
申请公布号 CA2037480(A1) 申请公布日期 1991.09.07
申请号 CA19912037480 申请日期 1991.03.04
申请人 NORTON COMPANY 发明人 CHOW, JACOB;HORTON, RALPH M.;JONES, MARK L.
分类号 E21B10/48;E21B10/54;(IPC1-7):E21B10/00 主分类号 E21B10/48
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