发明名称 Method for extending the leg of a ladder and apparatus therefor
摘要 An extender and method for extending the leg of a ladder can both lengthen and stabilize the leg of the ladder. The extender includes a first channel shaped and dimensioned to receive the leg of the ladder. A second channel is shaped and dimensioned to receive the first channel. A first and second members pivotally connect the first channel to the second channel. The second channel may be selectively moved from a stowed position wherein the first channel is received by the second channel, to an extended position wherein the second channel outwardly projects from the first channel and resides in substantially co-linear relationship with the first member. A lock is selectively connectable between the first channel and the second channel to retain the second channel in the extended position. A retainer fixedly attaches the extender to a desired position along the leg of the ladder.
申请公布号 US7017711(B1) 申请公布日期 2006.03.28
申请号 US20030701268 申请日期 2003.11.04
申请人 ALI SHAIKH MEHBOOB 发明人 ALI SHAIKH MEHBOOB
分类号 E06C7/00 主分类号 E06C7/00
代理机构 代理人
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