Plastic pipe chamfering tool
OwnerErwin P. Goldnerinventor
Life of this patent
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Abstract
A tool for chamfering the ends of plastic pipe of various diameters comprising a main body having various concentric circular grooves of different diameters which are shaped and sized to receive the square-cut ends of standard size plastic pipe. Each circular groove has an associated cutting blade mounted transversely with respect to the circumference of the pipe in a recess on the outer surface of the main body and positioned so that as the tool is rotated about the square-cut end of a pipe inserted in its correspondingly-sized groove, a chamfer is cut on the outer circular edge of the pipe. During the chamfering process, cuttings cannot enter the pipe because the open end of the pipe is covered by the tool and cuttings leave the tool through the recess. Cutting automatically ceases when the pipe end becomes seated in the groove.
Claims7
A tool for chamfering square-cut ends of plastic pipe comprising:
- a main body having a first circular groove shaped and sized to receive a first size of plastic pipe;
- a cutting blade mounted in a recess connecting the exterior surface of said main body with the periphery of said first groove;
- said blade being positioned transversely with respect to the circumference of a pipe of said first size inserted in said first groove;
- said blade also being positioned and angled to cut a chamfer on the end of a pipe of said first size inserted in said first groove when said tool is axially rotated about said end and pressure is exerted on said tool in an axial direction toward said pipe end;
- and
- said recess and blade being angled and positioned to expell cuttings from the chamfering process from said main body through said recess.
Dependencies are inferred from the claim text.