发明名称 Trench shield stacking device
摘要 A trench shield stacking bracket provided for facilitating the stacking of trench shields. The trench shield stacking bracket comprises an elongate hollow body frame which defines a pair of spaced apart trench shield spreader bar engaging Wall having upper and lower portions. The trench shield spreader bar engaging walls define upwardly opening trench shield spreader bar engaging slots in the upper portions thereof. The trench shield spreader bar engaging walls define downwardly opening trench shield spreader bar engaging slots in the lower portions thereof in opposed spaced apart register with the upwardly opening trench shield spreader bar engaging slots. Means are provided to selectively retain trench shield spreader bars selectively positioned within the upper and lower spreader bar engaging slots-during trench shield stacking operations. Stabilizer plate means are provided on one of the trench shield spreader engaging walls so as to extend outwardly from the wall intermediate the upper and lower spreader bar engaging slots so as to selectively engage the upper edge of a trench shield wall being stacked. A modified embodiment of the trench shield stacking bracket is provided with a centrally positioned horizontally oriented trench shield wall engaging flange extending outwardly therefrom so as to engage the upper edge of a trench shield wall.
申请公布号 US5839707(A) 申请公布日期 1998.11.24
申请号 US19960621125 申请日期 1996.03.22
申请人 EFFICIENCY PRODUCTION, INC. 发明人 BARRINGER, LUTHER BRADFORD
分类号 E02D17/08;(IPC1-7):A47B96/06 主分类号 E02D17/08
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