发明名称 Safety support for ladders
摘要 A ladder safety support for use with an existing ladder is disclosed. The support includes an attachment assembly for removable connection to the lower end of the ladder and one of two interchangeable foot assemblies for supporting the ladder on a surface. The first foot assembly provides a surface-penetrating stake having a lower tapered section and presenting a pointed tip and a threaded portion for removably attaching the stake to the assembly. The second foot assembly is similarly removable and provides a surface-engaging pad.
申请公布号 US6935463(B2) 申请公布日期 2005.08.30
申请号 US20030605116 申请日期 2003.09.09
申请人 K & B PRODUCTS, INC. 发明人 BREWSTER WILLIAM KEVIN
分类号 E06C7/44;E06C7/46;(IPC1-7):E06C1/00;E06C7/00;F16M11/24 主分类号 E06C7/44
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