发明名称 |
Resilient connection between a pick shank and block |
摘要 |
In one aspect of the present invention, a pick assembly is configured that comprises a pick shank configured to be press fit directly within a bore of a block. The pick shank comprises an inside and outside surface. The pick comprises a pick head opposite the shank. The shank comprises at least one longitudinal recess extending towards the pick head along the shank from a distal end of the shank. The recess allows the shank to resiliently collapse upon insertion into the bore while maintaining a press fit between the bore and the shank. |
申请公布号 |
US8646848(B2) |
申请公布日期 |
2014.02.11 |
申请号 |
US201113170447 |
申请日期 |
2011.06.28 |
申请人 |
HALL DAVID R.;JEPSON JEFF;PETERSON GARY;CROCKETT RONALD B. |
发明人 |
HALL DAVID R.;JEPSON JEFF;PETERSON GARY;CROCKETT RONALD B. |
分类号 |
E21C35/19 |
主分类号 |
E21C35/19 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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