发明名称 Spacer for spacing reinforcing mesh wire from the form in the manufacture of concrete pipe and the like
摘要 A spacer for attachment to the wires of a reinforcement cage that must be held away from the surfaces of a concrete form or wall used in producing concrete products, such as concrete pipe. The cage spacer is formed of a continuous piece of round spring-steel wire and has a closed loop formed at one end that hooks on a wire of the reinforcement cage. The closed loop connects two parallel spaced-apart legs that provide a spacing nose, the legs terminating at the other end of the spacer in an S-shaped hook that snaps over another of the wires of the cage. In the preferred embodiment, one lower leg is wrapped over and around the other leg to provide additional stability to the spacer.
申请公布号 US4989388(A) 申请公布日期 1991.02.05
申请号 US19890314801 申请日期 1989.02.24
申请人 HAWKEYE CONCRETE PRODUCTS CO. 发明人 SCHMIDGALL, JON A.;METZGER, GALEN G.
分类号 E04C5/16;E04C5/18 主分类号 E04C5/16
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