发明名称 Double anchor and lifting shackle for concrete slabs
摘要 A lifting mechanism for a concrete structure is provided through means of a void former and anchor assembly which it cast in place to provide an accurate recess in the structure having two or more spaced divergent anchors therein. The anchors define annularly aligned apertures within the recess. A lifting shackle of an arcuate configuration complimental with that of the recess is received within the recess and carries an arcuate locking bolt extendable through the aligned apertures.
申请公布号 US7905063(B2) 申请公布日期 2011.03.15
申请号 US20080231576 申请日期 2008.09.03
申请人 MMI PRODUCTS, INC. 发明人 KELLY DAVID L.
分类号 E02D35/00 主分类号 E02D35/00
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