发明名称 Resilient Bit Systems and Methods
摘要 The present invention relates to drill bits and methods of making drill bits. In one embodiment, a drill bit includes a bit body having at least one independent blade, in which the blade is attached to the bit body by way of a piece that is attached to a force absorbing material. In another embodiment, a drill bit includes an integrated blade, in which the blade is cut into segments allowing the segments of the blade to independently flex.
申请公布号 US2010108401(A1) 申请公布日期 2010.05.06
申请号 US20090544306 申请日期 2009.08.20
申请人 NATIONAL OILWELL VARCO, L.P. 发明人 LANNING CURTIS CLIFFORD;SCHEN AARON
分类号 E21B10/00;B21K5/02 主分类号 E21B10/00
代理机构 代理人
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