发明名称 Chimney flue insertion apparatus
摘要 Multi-legged apparatus for frictionally engaging the interior of a chimney flue liner and inserting same in a chimney via a stanchion or multi-sectioned rods. Each L-shaped leg is containably and rotatably mounted to a center threaded rod. The legs are expandable via a moving carrier containing cantilever arms connected to each of said L-shaped arms, such that by moving said carrier up or down along said center rod, said arms radially expand or contract from said center shaft.
申请公布号 US4500078(A) 申请公布日期 1985.02.19
申请号 US19830455203 申请日期 1983.01.03
申请人 BRENNAN, GERALD J. 发明人 BRENNAN, GERALD J.
分类号 B66C1/56;(IPC1-7):B23Q1/00 主分类号 B66C1/56
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