发明名称 Leveling roof platform support
摘要 A leveling roof platform support having a base strip removably mounted on a roof. A support strip is hingedly connected to the upper end of the base strip. A pivot brace is attached between the base strip and the support strip. With a jack assembly, including a ball nut, rotatably coupled to the pivot brace for selectively pivoting the support strip with respect to the base strip and roof surface such that the support strip provides a horizontally oriented support surface upon a sloped roof.
申请公布号 US5979600(A) 申请公布日期 1999.11.09
申请号 US19980019023 申请日期 1998.02.05
申请人 BITNER, SHAUN E. 发明人 BITNER, SHAUN E.
分类号 E04G3/26;(IPC1-7):E04G3/12 主分类号 E04G3/26
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