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公开(公告)号:US5823718A
公开(公告)日:1998-10-20
申请号:US790551
申请日:1997-01-30
申请人: Joseph A. Du Plessis
发明人: Joseph A. Du Plessis
CPC分类号: E02D15/02 , E21D15/483
摘要: A pillar bag which is made from a synthetic fabric which is folded, at vertically spaced intervals, to form a number of sheaths, with each sheath housing a reinforcing ring.
摘要翻译: 由合成织物制成的柱形袋,其以垂直间隔的间隔被折叠以形成多个护套,每个护套容纳加强环。