发明名称 Ladder leveling device
摘要 A device for leveling a ladder is disclosed which comprises a leveler guide with a hollow section which is secured to the lower portion of the ladder, a leveler leg which is sized and shaped to fit within the hollow section of the leveler guide, a plurality of guide openings spaced apart a pre-determined distance extending horizontally through the hollow portion of the leveler guide, a plurality of leg openings spaced apart a pre-determined distance extending horizontally through the leveler leg, and a securing apparatus sized and shaped to fit through the plurality of guide openings and through the plurality of leg openings in order to rigidly secure the device to the ladder.
申请公布号 US4423797(A) 申请公布日期 1984.01.03
申请号 US19820344767 申请日期 1982.02.01
申请人 BATTEN, LLOYD E. 发明人 BATTEN, LLOYD E.
分类号 E06C7/44;(IPC1-7):E06C7/44 主分类号 E06C7/44
代理机构 代理人
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