发明名称 Trench box moving apparatus and method
摘要 There is disclosed an apparatus and method for moving with an excavator arm a trench box having a pair of adjacent spreader bars at a forward end. The apparatus has a bracket end for connecting to the excavator arm and a hooking fork. The hooking fork has a first surface that engages the first spreader bar of the trench box. The apparatus also includes a second surface for engaging the adjacent second spreader bar when used to lift the trench box from the trench or move the trench box along the trench floor.
申请公布号 US7402003(B2) 申请公布日期 2008.07.22
申请号 US20060445878 申请日期 2006.06.02
申请人 KUNDEL SR ROBERT 发明人 KUNDEL, SR. ROBERT
分类号 E02D17/00 主分类号 E02D17/00
代理机构 代理人
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