IP Library › Granted Patent US 7,028,380
Granted Patent B2
US 7,028,380 · App. 10/637,253 · Granted Apr 18, 2006

Rivet removal tool and method

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Quick Facts
Patent No.
US 7,028,380
App. No.
10/637,253
Granted
Apr 18, 2006
Kind
B2
Abstract

A device and method of removing a rivet which has been installed on a work piece. The method includes clamping a hand held device having springs onto the work piece, engaging a drill with a drill bit of the hand held device, the springs applying a pre-load force to the drill bit, operating the drill, thereby causing the springs to apply an increased load force to the drill bit and causing the drill bit to drill into a button of the rivet, unclamping and removing the hand held device from the work piece, and using a compression tool to remove the rivet from the work piece. The compression tool includes a push out portion configured to push out the rivet, and a recess is disposed generally opposite the push out portion for catching the rivet as the rivet is pushed out.

Claims (5)

1. A method of removing a rivet which has been installed on a work piece, said method comprising: clamping a hand held device onto the work piece; spring biasing a drill bit of the hand held device against the rivet while the hand held device is clamped onto the work piece; engaging a drill with a the drill bit of the hand held device; operating the drill, thereby causing the drill bit to drill into a button of the rivet; unclamping and removing the hand held device from the work piece; and using a compression tool to remove the rivet from the work piece.

2. A method as recited in claim 1 , further comprising drilling into the butt on such that a recess is formed, and engaging the compression tool with the recess to push the rivet out of the work piece.

3. A method as recited in claim 2 , further comprising engaging a push out portion of the compression tool with the recess to push the rivet out of the work piece into a recess provided by the compression tool.

4. A method as recited in claim 2 , further comprising adjusting the hand held device to adjust a depth of cut of the drill bit during operation of the drill.

5. A method as recited in claim 4 , further comprising adjusting a depth adjuster member which is disposed on the drill bit.

Assignments (7)
RELEASE OF SECURITY INTEREST Recorded Nov 15, 2012
From: WELLS FARGO CAPITAL FINANCE, INC. (F/K/A WELLS FARGO FOOTHILL, INC.), AS COLLATERAL AGENT
To: ACUMENT INTELLECTUAL PROPERTIES, LLC
Reel/Frame 029302/0009 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 11, 2011
From: ACUMENT INTELLECTUAL PROPERTIES, LLC
To: ASIA FASTENING (US), INC.
Reel/Frame 025618/0040 →
RELEASE OF PATENT SECURITY INTEREST Recorded Aug 3, 2010
From: WILMINGTON TRUST FSB, AS THE AGENT
To: KING HOLDING CORPORATION; ACUMENT GLOBAL TECHNOLOGIES, INC.; ACUMENT INTELLECTUAL PROPERTIES, LLC; KING HOLDING US CORPORATION; CAMCAR LLC; RING SCREW LLC; ELCO FASTENING SYSTEMS LLC; FLEXALLOY, INC.; SATURN FASTENERS, INC.; AVDEL USA LLC; ACUMENT FASTENING SYSTEMS LLC; WOLVERINE METAL SPECIALTIES, INC.
Reel/Frame 024776/0651 →
SECURITY AGREEMENT Recorded Sep 24, 2009
From: ACUMENT INTELLECTUAL PROPERTIES, LLC
To: WELLS FARGO FOOTHILL, INC., AS COLLATERAL AGENT
Reel/Frame 023273/0875 →
SECURITY AGREEMENT Recorded Sep 23, 2009
From: ACUMENT INTELLECTUAL PROPERTIES, LLC
To: WILMINGTON TRUST FSB, AS COLLATERAL AGENT
Reel/Frame 023273/0114 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 18, 2007
From: TEXTRON INC.; TEXTRON INNOVATIONS INC.; AVDEL CHERRY RHODE ISLAND INC.; TEXTRON RHODE ISLAND INC.; RING SCREW TEXTRON INC.; AVDEL CHERRY TEXTRON INC.
To: ACUMENT INTELLECTUAL PROPERTIES LLC
Reel/Frame 018767/0300 →
CORRECTIVE ASSIGNMENT TO CORRECT THE SERIAL NUMBER PREVIOUSLY RECORDED ON REEL 017144 FRAME 0255. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT OF ASSIGNOR'S INTEREST. Recorded Feb 9, 2006
From: DONOVAN, STEVEN P.; GOSS, DAVID C.; SWEDBERG, RICHARD A.
To: TEXTRON INC.
Reel/Frame 017149/0055 →