发明名称 Recreational ramp for wheeled vehicles and process for manufacturing same
摘要 A recreational ramp suitable for use with wheeled vehicles, including a support structure and a molded concrete layer mounted on the support structure. The layer includes a sloping region that extends from a ground level to an above-ground level. Also, a process for the fabrication of a molded concrete layer for such a recreational ramp. The process includes preparing a mold from complementary parts, closing the parts onto one another, thus defining an interior space representative of a concrete layer, pouring concrete mixture into the mold; allowing the concrete to settle and separating the complementary parts of the mold to expose the molded concrete layer. Embodiments of the invention offer the advantages of conventional concrete, i.e., a smooth, quiet and durable surface for riding, while the ramp as a whole remains lightweight and less bulky as compared with conventional concrete ramps. A particularly advantageous embodiment uses self-leveling concrete.
申请公布号 US2004002393(A1) 申请公布日期 2004.01.01
申请号 US20020183571 申请日期 2002.06.28
申请人 TESSIER RICHARD 发明人 TESSIER RICHARD
分类号 A63C19/10;B28B7/00;E01C13/00;(IPC1-7):A63G21/00 主分类号 A63C19/10
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