发明名称 Concrete form assembly
摘要 A concrete form assembly comprises spaced apart form members that are retained in position during concrete pouring by an arrangement that includes spacer elements, plastic tie rods, and anchors. The anchors are on the outsides of the forms and grip the tie rods. Each anchor comprises a tapered jaw cluster in a tapered shell so arranged that outward forces applied to the forms due to concrete being poured therebetween increases the grip of the anchors on the tie rods to retain the forms at the established spacing.
申请公布号 US4006878(A) 申请公布日期 1977.02.08
申请号 US19730379791 申请日期 1973.07.16
申请人 RELIABLE ELECTRIC COMPANY 发明人 DAWSON, ROBERT H.;MCGRATH, JAMES L.
分类号 E04G17/07;(IPC1-7):E04G11/08;E04G17/08 主分类号 E04G17/07
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