# US 2010/0166513 A1 · Simultaneous Pipe Cutting and Chamfering Device

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- Number: US 2010/0166513 A1
- Document ID: US20100166513A1
- Status: Published application
- Kind: A1
- Application number: 12/493,694
- Filed: 2009-06-29
- Published: 2010-07-01
- Earliest claimed: 2008-12-30
- Inventors: Philip Karow
- Web page: https://patentgrep.com/patent/US20100166513A1

## CPC

- B23B 5/167: {Tools for chamfering the ends of bars or tubes}
- B23C 3/02: Milling surfaces of revolution (B23C3/06, B23C3/08 take precedence)
- B23C 3/122: {of pipes or cylinders}
- B23C 5/12: Cutters specially designed for producing particular profiles (B23C5/10 takes precedence)
- B23C 2220/16: Chamferring
- Y10T 408/03: Processes
- Y10T 409/303808: including infeeding
- Y10T 409/304144: Means to trim edge
- Y10T 409/30644: to guide tool to move in arcuate path
- Y10T 409/30756: Machining arcuate surface
- Y10T 409/307616: with means to move cutter eccentrically
- B23B: TURNING; BORING (arrangements for copying or controlling B23Q)
- B23C: MILLING (broaching B23D; broach-milling in making gears B23F; arrangement for copying or controlling B23Q)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A mobile device for simultaneously cutting and chamfering a pipe is provided having a frame, at least one pipe collet-clamp attached to the frame and defining a principal axis, a split carriage rotatably mounted with respect to the frame about the axis and adjacent to the clamp(s), a router affixed to the split carriage and having a cutting-chamfering bit, and a drive motor for rotating the carriage. The router orbits around the pipe and simultaneously cuts it into two chamfered pipes. A method is also provided for cutting through a pipe and chamfering the cut ends thereof.

## Claims

### Claim 1

A method of cutting through a pipe and chamfering the cut ends thereof, the method comprising the steps of supporting a pipe at axial locations on either side of an intended cutting zone on the pipe, and orbiting a router having a cutting-chamfering bit 360 degrees around the pipe to simultaneously cut through the pipe and chamfer the cut ends.

### Claim 2 (depends on 1)

The method of claim 1 wherein the supporting step comprises clamping the pipe with pipe collet-clamps.

### Claim 3 (depends on 2)

The method of claim 2 wherein the orbiting step comprises:
providing a split carriage rotatably mounted with respect to a frame about the pipe axis and between the clamps, the router being affixed to the split carriage; and
rotating the carriage about the clamped pipe.

### Claim 4 (depends on 2)

The method of claim 2 including the preliminary step of selecting from a collet-clamp set collet-clamps sized for the pipe to be cut.