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    • 31. 发明授权
    • Concrete form with keyway and clamp with base engaging the keyway
    • 具有键槽和夹具的混凝土结构与底座啮合键槽
    • US07303361B1
    • 2007-12-04
    • US11532031
    • 2006-09-14
    • Michael Lane
    • Michael Lane
    • E04G9/10
    • E04G9/05E04G13/00E04G17/02
    • A concrete form with a keyway with an opening between opposing keyway lips together with a base that fits through the keyway opening and rotates without restriction in the keyway such that a portion of the base rests behind the keyway lips so when it is pulled as a clamp or tie is exercised to secure a stake to the form the base is secured tight against the form front. The concrete form further has at least one brace wall extending between intermediate the keyway back wall and the form back. Form end connectors securable in form ends are provided that join two forms aligned end to end.
    • 具有键槽的具体形式,在相对的键槽唇与开口之间具有开口,所述基座通过键槽开口配合,并且在键槽中没有限制地旋转,使得基座的一部分位于键槽唇之后,因此当其被拉动作为夹具 或者领带被运动以将桩固定在基座被紧固地抵靠在前面的形式上。 混凝土形式还具有至少一个在键槽后壁和形状背之间延伸的支撑壁。 提供固定在形式端部的端部连接件,其将两种形式的端部对准对准。