发明名称 APPARATU FOR REMOVING OLD PIPE
摘要 PURPOSE: An apparatus for removing an old pipe is provided to drastically shorten a replace period of a new pipe and to reduce production costs. CONSTITUTION: An apparatus for removing an old pipe comprises a body(100), a stop unit(200), and a pulling unit(300). The body is detachable in order to stop the old pipe at the end of a new pipe in a pressure-inserted direction. The stop unit is arranged inside the old pipe. The stop unit is fixed at the inner circumference of the old pipe. The pulling unit is combined with the body and generates the driving force and draws the stop unit by being connected to the stop unit.
申请公布号 KR20090104332(A) 申请公布日期 2009.10.06
申请号 KR20080029711 申请日期 2008.03.31
申请人 SHIN, CHANG SUB 发明人 SHIN, CHANG SUB
分类号 E03F7/00;F16L1/00 主分类号 E03F7/00
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