发明名称 Retention System
摘要 A retention assembly, comprises a carbide bolster comprising a cavity formed in its base end. A shaft comprises an inserted end disposed within the cavity. The shaft is disposed within a hollow shank which comprises a first end contacting the bolster and a loaded end in mechanical communication with the shaft. Wherein, the inserted end is brazed to an inner surface of the cavity.
申请公布号 US2009146489(A1) 申请公布日期 2009.06.11
申请号 US20080135595 申请日期 2008.06.09
申请人 HALL DAVID R;DAHLGREN SCOTT;MARSHALL JONATHAN;ELQUETA ITALO;WILDE TYSON J;DURRAND CHRISTOPHER 发明人 HALL DAVID R.;DAHLGREN SCOTT;MARSHALL JONATHAN;ELQUETA ITALO;WILDE TYSON J.;DURRAND CHRISTOPHER
分类号 E21C25/06 主分类号 E21C25/06
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