发明名称 Fall restraint system and method useful for roof inspection
摘要 A fall restraint system protects a worker while inspecting and/or repairing a roof of a building. The restraint system includes a ladder that is positioned against the building. A fall restraint device is removably connected to the ladder and contacts the roof. A cable support structure is connected to the fall restraint device, and a cable is attached to it. The cable extends from the cable support structure toward the peak of the roof, and from the peak toward the ground. The cable is adapted to be connected to a harness that is worn by the worker. The worker then uses the cable to inspect/repair the roof.
申请公布号 US6112853(A) 申请公布日期 2000.09.05
申请号 US19980205275 申请日期 1998.12.04
申请人 STATE FARM MUTUAL AUTOMOBILE INSURANCE CO. 发明人 BEARD, DAVID W.
分类号 E04D15/00;E04G21/32;E06C1/34;E06C7/18;E06C7/48;(IPC1-7):E04G1/36 主分类号 E04D15/00
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