Concrete forms for building a concrete spillway
    3.
    发明授权
    Concrete forms for building a concrete spillway 失效
    用于建造混凝土溢洪道的混凝土形式

    公开(公告)号:US4060217A

    公开(公告)日:1977-11-29

    申请号:US609671

    申请日:1975-09-02

    申请人: Donald Kirk

    发明人: Donald Kirk

    IPC分类号: B28B7/00 B28B7/22 F04C1/00

    CPC分类号: B28B7/0029

    摘要: Concrete forms for building a concrete spillway using prefabricated metal concrete forms. The concrete forms being adaptable for building spillways having various widths, heights and lengths. The spillways are used to control water runoff during heavy rains and prevent soil erosion of farm and ranch land.

    摘要翻译: 使用预制金属混凝土形式建造混凝土溢洪道的混凝土形式。 具体形式适用于建造具有各种宽度,高度和长度的溢洪道。 溢洪道用于控制大雨期间的径流,防止农场和牧场土壤侵蚀。