# US 7,743,688 B2 · Handheld portable tubing cutter drivable by handheld power drill and having a minimized working profile

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- Number: US 7,743,688 B2
- Document ID: US7743688B2
- Status: Granted
- Kind: B2
- Application number: 11/786,556
- Filed: 2007-04-12
- Published: 2007-10-18
- Granted: 2010-06-29
- Earliest claimed: 2006-04-18
- Inventors: Eric J. Jellinghausen
- Web page: https://patentgrep.com/patent/US7743688B2

## CPC

- B23D 21/04: Tube-severing machines with rotating tool-carrier
- Y10T 82/16: Severing or cut-off
- Y10T 82/22: Portable lathe for pipe turning
- B23D: PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR (making toothed gears or the like B23F; cutting metal by applying heat locally B23K; arrangements for copying or controlling B23Q)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A handheld, portable tubing cutter driveable by a handheld power drill is provided. The tubing cutter includes a support cylinder having distal and, proximal ends. The proximal end of the support cylinder is adapted to engage the drill chuck of an ordinary handheld power drill. A cylindrical cutting head, known in the art, is removably connected to the distal end of the support cylinder. The longitudinal axis of the support cylinder is aligned with, and parallel to, the longitudinal axis of the tubing to be cut. Once the cutting head is placed on the tubing to be cut and the support cylinder is connected to the cutting head, the device is actuated and operates with a minimized working profile.

## Claims

### Claim 1

A handheld, portable tubing cutter for cutting off a copper tubing stub out, wherein said copper tubing stub out has a longitudinal axis, and wherein said cutter has a minimized working profile, said tubing cutter driveable by a handheld power drill having a drill chuck, comprising:
a support cylinder having a distal end and a proximal end,
drive means formed at said proximal end of said support cylinder to engage said drill chuck so that actuation of said power drill rotates said support cylinder,
a cylindrical cutting head adapted to cut said copper tubing stub out by contacting the outer surface of said tubing and being rotated around said longitudinal axis of said tubing to cut said tubing perpendicularly to said longitudinal axis of said tubing, and
connecting means for removably attaching said cutting head to said distal end of said support cylinder,
wherein said tubing cutter extends radially outwardly from said tubing, but has no parts that extend radially outward beyond the outer diameter of said support cylinder when said tubing cutter is in operation, whereby said working profile of said tubing cutter is the same as the outer diameter of said support cylinder.

### Claim 2 (depends on 1)

The apparatus of claim 1 wherein the tubing to be cut has a longitudinal axis X-X and wherein said support cylinder has a longitudinal axis that is positioned parallel to said axis X-X when said tubing cutter is to be actuated.

### Claim 3 (depends on 1)

The apparatus of claim 1 wherein said support cylinder has an elongated slot formed in a side wall.

### Claim 4 (depends on 3)

The apparatus of claim 3 wherein said distal end of said support cylinder resiliently carries said cutting head.

### Claim 5 (depends on 4)

The apparatus of claim 4 wherein said cutting head includes a movable plate and wherein said movable plate is aligned within said elongated slot.

### Claim 6 (depends on 1)

The apparatus of claim 1 wherein said connecting means comprises a beveled surface at said distal end of said support cylinder.

### Claim 7 (depends on 1)

The apparatus of claim 1 wherein said cutting head has a serrated outer surface and wherein said connecting means comprises a serrated surface in said distal end of said support cylinder that slidably receives said serrated surface of said cutting head.