发明名称 Self-centering plastic pipe router tool
摘要 A self-centering plastic pipe router tool is described for routing of a sawed-off end of pipe from the interior surface of a salvageable pipe. The router tool is a disk with an axial shank on one side of the disk. A pair of cutting flanges extend radially outwardly and upwardly in the direction of the axial shank from the disk perimeter to form first and second cutting edges. A concentric cylindrical skirt extends downwardly from the disk for axial centering of the router tool within the waste pipe ID. The first cutting edges are sized for routing of the waste pipe and the second cutting edges are sized to plane and re-finish the interior surface of the salvageable pipe for re-use.
申请公布号 US5000629(A) 申请公布日期 1991.03.19
申请号 US19890438326 申请日期 1989.11.16
申请人 NYGARDS, NILS 发明人 NYGARDS, NILS
分类号 B23B5/16 主分类号 B23B5/16
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