A retention assembly has a carbide bolster with a first and second segment brazed together, each segment forming at least part of a cavity formed of the bolster. A shaft has an inserted end is interlocked within the cavity.
申请公布号
US8033615(B2)
申请公布日期
2011.10.11
申请号
US20080135714
申请日期
2008.06.09
申请人
SCHLUMBERGER TECHNOLOGY CORPORATION
发明人
HALL DAVID R.;DAHLGREN SCOTT;MARSHALL JONATHAN;ELQUETA ITALO;WILDE TYSON J.;DURRAND CHRISTOPHER
