发明名称 METHOD OF USING SPRING LOADED BLOCKER TO RETAIN ROLLING CUTTERS OR MECHANICAL LOCK CUTTERS
摘要 <p>A cutting element assembly may include a sleeve; an inner cutting element in the sleeve; and a blocker retained in the sleeve with at least one locking device and covering a portion of a cutting face of the inner cutting element. Cutting tools may include a tool body; a plurality of blades extending radially from the tool body, each blade comprising a leading face and a trailing face; a plurality of cutter pockets on the plurality of blades; at least one cutting element in one of the cutter pockets; and at least one blocker positioned adjacent to a cutting face of the at least one cutting element and the leading face of the blade, the blocker being retained to the cutter pocket with at least one locking device.</p>
申请公布号 WO2014078683(A1) 申请公布日期 2014.05.22
申请号 WO2013US70345 申请日期 2013.11.15
申请人 SMITH INTERNATIONAL, INC. 发明人 CHEN, CHEN;BURHAN, YURI;SHI, JIBIN
分类号 E21B10/573;E21B10/43 主分类号 E21B10/573
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