发明名称 Ladder positioning system
摘要 A ladder has side rails with rungs and lower eye-bolts extending from the side rails. A bracket is couplable to a building to be painted or maintained with upper eye-bolts. A pair of turnbuckles have central sections, upper end sections and lower end sections. A pair of J-shaped hooks have lower ends. The lower ends are coupled to the upper ends of the turnbuckle. An upper hook-shaped end is removably coupled to an upper eye-bolt. A pair of short chains has upper ends threadedly coupled to the lower end of the turnbuckle. A lower hook-shaped end is removably coupled to a lower eye-bolt.
申请公布号 US6805221(B1) 申请公布日期 2004.10.19
申请号 US20030392073 申请日期 2003.03.19
申请人 LEE HOWARD 发明人 LEE HOWARD
分类号 E06C1/34;E06C7/46;E06C7/48;(IPC1-7):E04G5/02;E06C7/06;E06C7/14 主分类号 E06C1/34
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