发明名称 Environmentally compatible archway for road building
摘要 This invention relates to a novel archway apparatus which is useful for building access roads, such as logging roads and secondary roads in wilderness areas that include waterways such as streams and creeks, while causing little or not impact to sensitive environment. An environmentally compatible archway module for culvert construction comprising: (a) a curved body; (b) a first flange on a first end of the body; (c) a second flange on a second end of the body; (d) a first footing contact area at the base of a first side of the body; (e) a second footing contact area at the base of a second side of the body; and (f) a reinforcing member in a region of the body between the first flange and the second flange.
申请公布号 US2002076280(A1) 申请公布日期 2002.06.20
申请号 US20010814736 申请日期 2001.03.23
申请人 SEMOTIUK ROBERT A.;NYBO BARRY C. 发明人 SEMOTIUK ROBERT A.;NYBO BARRY C.
分类号 E01F5/00;(IPC1-7):E03F3/00 主分类号 E01F5/00
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