发明名称 Method for providing a degradation drum
摘要 In one aspect of the invention a degradation drum comprises a generally cylindrical body comprising inner and outer diameters. At least one degradation assembly is disposed on the outer diameter and it comprises a holder and a pick shank secured within a bore of the holder. At least one lubricant reservoir is disposed within the inner diameter and is in fluid communication with the bore of the holder through a fluid pathway. In some embodiments, the lubricant reservoir maintains a fluid pressure on the pick shank.
申请公布号 US7390066(B2) 申请公布日期 2008.06.24
申请号 US20070747377 申请日期 2007.05.11
申请人 HALL DAVID R;WILDE TYSON J;MILLS JAD A 发明人 HALL DAVID R.;WILDE TYSON J.;MILLS JAD A.
分类号 E21C35/18 主分类号 E21C35/18
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