发明名称 Protective ladder assembly for scaffolding structure
摘要 A protective assembly for a ladder system is provided for scaffolding structures of the type which utilizes a connector/retention system for detachably securing upright and horizontal members. The protective assembly is comprised of substantially U-shaped and substantially J-shaped horizontal members the ends of which have secured thereto connector means and which when secured to upright members to both sides of said ladder system provides an efficient enclosed circular cage with unobstructed access from a lower ladder to a platform at the base of an upper ladder.
申请公布号 US5255758(A) 申请公布日期 1993.10.26
申请号 US19910660568 申请日期 1991.02.25
申请人 CHEROKEE CONSTRUCTION CO. 发明人 HOOD, JR., ROY
分类号 E04G5/10;E06C7/18;(IPC1-7):E04G5/00 主分类号 E04G5/10
代理机构 代理人
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