发明名称 ROLLING CUTTER BIT DESIGN
摘要 A cutting tool having a tool body with a plurality of blades extending radially therefrom and a plurality of rotatable cutting elements mounted on at least one of the plurality of blades is disclosed, wherein the plurality of rotatable cutting elements are mounted on the at least one blade utilizing multiple side rake angles.
申请公布号 US2011284293(A1) 申请公布日期 2011.11.24
申请号 US201113111453 申请日期 2011.05.19
申请人 SHEN YUELIN;ZHANG YOUHE;SMITH INTERNATIONAL, INC. 发明人 SHEN YUELIN;ZHANG YOUHE
分类号 E21B10/08 主分类号 E21B10/08
代理机构 代理人
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