IP Library › Granted Patent US 7,623,320
Granted Patent B2
US 7,623,320 · App. 11/493,965 · Granted Nov 24, 2009

Discrete mounting arm for hard disk drive and method for making the same

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Quick Facts
Patent No.
US 7,623,320
App. No.
11/493,965
Granted
Nov 24, 2009
Kind
B2
Abstract

A mounting arm for a hard disk drive having a generally planar region, the mounting arm having at least one striation formed on the generally planar region to provide compressive residual stress with desirable shape characteristics in the mounting arm.

Claims (15)

1. A mounting arm for a magnetic transducer used in a hard disk drive, the mounting arm having a generally planar region formed out of stainless steel, the mounting arm being shaped by a plurality of non co-linear striations on the planar region caused by plastic deformation of the planar region by depressions formed in a surface of the planar region that is about 20μ inches deep, the mounting arm tending to bow away from the surface containing the striations, thereby modifying the shape or hardness of the mounting arm.

2. The mounting arm of claim 1 , wherein the one or more striations are parallel to the width of the mounting arm.

3. The mounting arm of claim 1 , wherein the one or more striations are parallel to the length of the mounting arm.

4. The mounting arm of claim 1 , wherein the one or more striations are diagonal to the length of the mounting arm.

5. The mounting arm of claim 1 , wherein the one or more striations are formed diagonal to the width of the mounting arm.

6. The mounting arm of claim 1 , wherein the one or more striations are formed as depression points along the width of the mounting arm.

7. The mounting arm of claim 1 , wherein the one or more striations are formed on both sides of the mounting arm.

8. The mounting arm of claim 1 , wherein the one or more striations have different depth.

9. The mounting arm of claim 1 , wherein the one or more striations are loosely spaced.

10. The mounting arm of claim 1 , wherein the one or more striations are tightly spaced.

11. The mounting arm of claim 1 , wherein the one or more striations are depression points on the mounting arm.

12. The mounting arm of claim 1 , wherein the one or more striations are partially formed along the length of the mounting arm.

13. The mounting arm of claim 1 , wherein the one or more striations are partially formed along the width of the mounting arm.

14. The mounting arm of claim 1 , wherein the striations have a variable width.

15. The mounting arm of claim 1 , wherein the striations have a variable length.

Assignments (13)
SECURITY INTEREST Recorded Nov 17, 2020
From: INTRI-PLEX TECHNOLOGIES, INC.
To: MADISON PACIFIC TRUST LIMITED
Reel/Frame 054440/0818 →
RELEASE OF SECURITY INTEREST IN PATENT RIGHTS PREVIOUSLY RECORDED AT REEL/FRAME (027767/0035) Recorded Mar 27, 2015
From: DB TRUSTEES (HONG KONG) LIMITED
To: INTRI-PLEX TECHNOLOGIES, INC.
Reel/Frame 035331/0105 →
RELEASE OF SECURITY INTEREST IN PATENT RIGHTS PREVIOUSLY RECORDED AT REEL/FRAME (030456/0772) Recorded Mar 27, 2015
From: DB TRUSTEES (HONG KONG) LIMITED
To: INTRI-PLEX TECHNOLOGIES, INC.
Reel/Frame 035332/0165 →
RELEASE OF SECURITY INTEREST IN PATENT RIGHTS PREVIOUSLY RECORDED AT REEL/FRAME (030456/0555) Recorded Mar 27, 2015
From: DB TRUSTEES (HONG KONG) LIMITED
To: INTRI-PLEX TECHNOLOGIES, INC.
Reel/Frame 035332/0221 →
GRANT OF SECURITY INTEREST IN PATENT RIGHTS Recorded Mar 27, 2015
From: INTRI-PLEX TECHNOLOGIES, INC.
To: STANDARD CHARTERED BANK (HONG KONG) LIMITED, AS COLLATERAL AGENT
Reel/Frame 035333/0075 →
TERMINATION AND RELEASE OF SECURITY INTEREST Recorded May 21, 2013
From: DB TRUSTEES (HONG KONG) LIMITED
To: INTRI-PLEX TECHNOLOGIES, INC.
Reel/Frame 030456/0350 →
GRANT OF SECURITY INTEREST Recorded May 21, 2013
From: INTRI-PLEX TECHNOLOGIES, INC.
To: DB TRUSTEES (HONG KONG) LIMITED
Reel/Frame 030456/0555 →
GRANT OF SECURITY INTEREST Recorded May 21, 2013
From: INTRI-PLEX TECHNOLOGIES, INC.
To: DB TRUSTEES (HONG KONG) LIMITED
Reel/Frame 030456/0772 →
TERMINATION AND RELEASE Recorded Feb 27, 2012
From: DB TRUSTEES (HONG KONG) LIMITED
To: INTRI-PLEX TECHNOLOGIES, INC.
Reel/Frame 027766/0728 →
GRANT OF SECURITY INTEREST Recorded Feb 27, 2012
From: INTRI-PLEX TECHNOLOGIES, INC.
To: DB TRUSTEES (HONG KONG) LIMITED
Reel/Frame 027767/0035 →
SECURITY INTEREST Recorded Feb 27, 2012
From: INTRI-PLEX TECHNOLOGIES, INC.
To: DB TRUSTEES (HONG KONG) LIMITED, AS COLLATERAL AGENT
Reel/Frame 027770/0715 →
GRANT OF SECURITY INTEREST IN PATENT RIGHTS Recorded Feb 7, 2011
From: INTRI-PLEX TECHNOLOGIES, INC.
To: DB TRUSTEES (HONG KONG) LIMITED, AS COLLATERAL AGENT
Reel/Frame 025752/0493 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 1, 2006
From: JOHNSON, RICHARD; KOLLMANN, KENDALL
To: INTRI-PLEX TECHNOLOGIES, INC.
Reel/Frame 018199/0387 →