发明名称 Adjustable square post driver assembly
摘要 A post driver assembly for driving square wood posts comprising a grip retainer plate having a rectangular plate hole centrally located in the plate which is oversized compared to an outside dimension of a square post. A post driver wedge is provided with a flat side for flush engagement with a post side when the post driver wedge is telescoped through the rectangular plate hole. The post driver wedge has a tapered side opposite to the flat side slidingly engageable with an edge of the rectangular plate hole for ensuring snug engagement of the flat side against the post. A screw is threaded through the wedge for attaching the wedge to the post to anchor the wedge to resist vertical slippage of the wedge relative to the wooden post.
申请公布号 US5291953(A) 申请公布日期 1994.03.08
申请号 US19930008720 申请日期 1993.01.19
申请人 MITCHHART, JOEL W. 发明人 MITCHHART, JOEL W.
分类号 E04H17/26;(IPC1-7):E02D7/04 主分类号 E04H17/26
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