发明名称 Cutting Bit With Split Wear Ring
摘要 A cutting bit includes an elongate body having a shank portion and a head portion with a forward end. The head portion has an annular channel defined therein adjacent to and rearwardly of the forward end of the head portion. The annular channel has an angled bottom surface. The cutting bit also includes a split wear ring positionable in the annular channel and structured and arranged to be retainably held in the annular channel. The cutting bit further includes a hard cutting tip affixed to the forward end of the head portion.
申请公布号 US2013307317(A1) 申请公布日期 2013.11.21
申请号 US201213474663 申请日期 2012.05.17
申请人 BOOKHAMER PAUL A.;PAROS NICHOLAS J.;KENNAMETAL INC. 发明人 BOOKHAMER PAUL A.;PAROS NICHOLAS J.
分类号 E21C35/18 主分类号 E21C35/18
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