Self-centering plastic pipe router tool

Details Self-centering plastic pipe router tool Self-centering plastic pipe router tool

1989-11-16

1991-03-19

Paumen, Gary F.

Cutting by use of rotating axially moving tool

With work-engaging structure other than tool or tool-support

Frictionally engaging sides of opening in work

30500, 30172, B23B 322

Patent

active

050006290

ABSTRACT:
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.

REFERENCES:
patent: 976635 (1910-11-01), Cobb
patent: 1667218 (1928-04-01), Purnig
patent: 1677465 (1928-07-01), Thaete
patent: 2677309 (1954-05-01), Koons
patent: 4440531 (1984-04-01), Astle
patent: 4630694 (1986-12-01), Walton et al.
patent: 4693643 (1987-09-01), Heyworth
patent: 4917550 (1990-04-01), Aurentz

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