发明名称 Roof truss shoe having wedge retention device and method of using the same
摘要 A truss shoe for a mine roof truss comprises a base having a pair of ends, a curved side extending between the ends, a top side, and a bearing surface. The shoe includes an angled stanchion having a bore and a housing having a tapered bore, with a recess between the housing and stanchion. A retainer is sized to fit in the recess, with the retainer having an aperture disposed adjacent an end such that the blocks a portion of the opening of the bore in the housing to retain a wedge assembly in the tapered bore.
申请公布号 US7717650(B2) 申请公布日期 2010.05.18
申请号 US20060548170 申请日期 2006.10.10
申请人 发明人 RESCHKE TONY;WALKER ROLAND;BRANDON RAYMOND
分类号 E21D21/00;E04C5/12;E21D11/00 主分类号 E21D21/00
代理机构 代理人
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