IP Library Granted Patent US 9,156,149
Granted Patent B2
US 9,156,149 · App. 13/467,118 · Granted Oct 13, 2015

Tooling system and method for removing a damaged or defective bushing

Inventor: Tom Cooper (Ennis, TX)
Assignee: Textron Innovations Inc.
B25B27/06B23B47/28B23B49/02Y10T408/03Y10T408/55Y10T408/5583Y10T408/567Y10T408/568Y10T408/569
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Quick Facts
Patent No.
US 9,156,149
App. No.
13/467,118
Granted
Oct 13, 2015
Kind
B2
Abstract

A system and method to remove a bushing from a bore includes an alignment tool that fits within an inner cavity of the bushing and a cutter tool aligned by the alignment tool. The method includes forming a groove on an inner surface of the bushing with the cutter tool and guiding the cutter tool with a guide associated with the alignment tool.

Claims (35)

1. A system to remove a bushing from a bore, comprising;

an alignment tool comprising a substantially cylindrical outer surface, the alignment tool being configured to fit within an inner cavity of the bushing, the alignment tool having a first guide comprising a first substantially cylindrical bore and a second guide comprising second substantially cylindrical bore; and

a cutter tool configured to selectively, travel via the first guide and the second guide;

wherein the cutter tool extends radically beyond the outer surface of the alignment tool by a first distance when the cutter tool is in the first guide and the cutter tools extends radially beyond the outer surface of the alignment tool by a second distance when the cutter tool is in the second guide, the first distance being different than the second distance; and

wherein the cutter tool removes material from an inner surface of the bushing that in turn causes the bushing to collapse inwardly and thereby allowing removal of the bushing from the bore.

2. The system of claim 1 , wherein the system is portable.

3. The system of claim 1 , the alignment tool further comprising:

a flange; and

a first port extending through a thickness of the flange and coaxially aligned with the first guide.

4. The system of claim 3 , further comprising:

a sleeve configured to fit within the first port;

wherein the sleeve receives a portion of the cutter tool.

5. The system of claim 1 , further comprising:

a portable driver system for driving the cutter tool.

6. The system of claim 1 , further comprising:

a third guide configured to receive the cutter tool.

7. The system of claim 1 , wherein the first guide and the second guide both extend radially inwardly from the outer surface of the alignment tool; and

wherein the first guide extends radially inwardly at a greater depth than a depth of the second guide.

8. A system to remove a bushing from a bore, comprising:

an alignment tool configured to fit within an inner cavity of the bushing, the alignment tool having:

an outer surface;

a first guide; and

a second guide, both the first guide and the second guide extending radially inwardly relative to the outer surface;

a cutter tool configured to selectively travel via the first guide and the second guide;

a sleeve configured to fit within a first port, extending through a flange having a thickness, and a second port extending through the thickness of the flange;

wherein the sleeve receives a portion of the cutter tool;

wherein the cutter tool extends radially beyond the outer surface of the alignment tool by a first distance when the cutter tool is in the first guide and the cutter tool extends radially beyond the outer surface of the alignment tool by a second distance when the cutter tool is in the second guide, the first distance being different than the second distance; and

wherein the cutter tool removes material from an inner surface of the bushing while traveling on the first guide and the second guide that in turn causes the bushing to collapse inwardly and thereby allowing removal of the bushing from the bore.

9. The system of claim 8 , wherein the system is portable.

10. The system of claim 8 ,

wherein the first port is coaxially aligned with the first guide and the second port is coaxially aligned with the second guide.

11. The system of claim 8 , further comprising:

a portable driver system that couples to and drives the cutter tool.

12. The system of claim 1 , further comprising:

a driver for removing the bushing from the bore.

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE THE ORIGINAL ASSIGNMENT PREVIOUSLY RECORDED AT REEL: 030891 FRAME: 0135. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Jul 16, 2021
From: BELL HELICOPTER TEXTRON INC.
To: TEXTRON INNOVATIONS INC.
Reel/Frame 056893/0946 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 28, 2013
From: BELL HELICOPTER TEXTRON INC.
To: TEXTRON INNOVATIONS INC.
Reel/Frame 030891/0135 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 28, 2012
From: COOPER, TOM
To: BELL HELICOPTER TEXTRON INC.
Reel/Frame 028860/0831 →
Continuity (2)
Provisional Application 61484833 · May 11, 2011
Related Publication 20120288338A1 · Nov 15, 2012