发明名称 Adjustable hang ladder with fall arresting and cushioning arrangement
摘要 An adjustable hang ladder includes a main ladder section and a hang ladder section secured to the main ladder section. The hang ladder section has a hang ladder insert pivotally secured to an attachment section and locked in place by a locking mechanism. The hang ladder section is provided with a fall arresting and damping arrangement designed for connection to a roofer using the ladder for providing a cushioning effect in the event the roofer falls from the ladder.
申请公布号 US8464833(B2) 申请公布日期 2013.06.18
申请号 US20100898096 申请日期 2010.10.05
申请人 LEE GE 发明人 LEE GE
分类号 E06C7/18 主分类号 E06C7/18
代理机构 代理人
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