IP Library Granted Patent US 8,233,232
Granted Patent B2
US 8,233,232 · App. 12/762,075 · Granted Jul 31, 2012

Method and data storage device with a snubber supported on an actuator and having a distal edge configured to have differing arcuate portions

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Quick Facts
Patent No.
US 8,233,232
App. No.
12/762,075
Granted
Jul 31, 2012
Kind
B2
Abstract

A data storage apparatus and associated method is provided involving a data storage disc that is rotatable around a first axis. An actuator is rotatable around a second axis to operably position a data transfer member between an innermost radial location of the data storage disc and an outermost radial storage location of the data storage disc. A snubber is supported by the actuator and has a distal edge configured as being, in relation to a reference plane including the first axis and the second axis when the actuator is rotated to position the data transfer member at the innermost radial location, arcuate along a first radius on one side of the reference plane and arcuate along a second radius different than the first radius on the other side of the reference plane.

Claims (28)

1. A data storage device comprising:

a data storage disc that is rotatable around a first axis;

an actuator that is rotatable around a second axis to operably position a data transfer member between an innermost radial location of the data storage disc and an outermost radial storage location of the data storage disc;

a snubber supported by the actuator and having a distal edge configured as being, in relation to a reference plane including the first axis and the second axis when the actuator is rotated to position the data transfer member at the innermost radial location, arcuate along a first radius on one side of the reference plane and arcuate along a second radius different than the first radius on the other side of the reference plane.

2. The data storage device of claim 1 wherein the snubber distal edge is concave to the second axis on one side of the reference plane and non-concave to the second axis on the other side of the reference plane.

3. The data storage device of claim 2 wherein the snubber distal edge is convex to the second axis on the other side of the reference plane.

4. The data storage device of claim 1 wherein the first radius is centered at the second axis.

5. The data storage device of claim 4 wherein the first radius is defined by being tangential to a radial edge of an annulus of non-storage space of the data storage disc between an outer edge of the data storage disc and the outermost radial storage location.

6. The data storage device of claim 1 wherein the second radius centered at the first axis.

7. The data storage device of claim 6 wherein the second radius is defined by a radial edge of an annulus of non-storage space of the data storage disc between an outer edge of the data storage disc and the outermost radial storage location.

8. The data storage device of claim 1 wherein the data transfer member is supported by an arm having a surface substantially parallel to the data storage disc and operably spatially disposed therefrom by a first clearance, and the snubber having a surface substantially parallel to the data storage disc and operably spatially disposed therefrom by a second clearance that is less than the first clearance.

9. The data storage device of claim 1 wherein the innermost radial location is a non-storage space of the data storage disc.

10. The data storage device of claim 1 wherein the innermost radial location is an innermost radial storage location.

11. An actuator for a data storage device having a data storage disc that is rotatable around a first axis, the actuator comprising:

a body that is rotatable around a second axis to operably position a data transfer member between an innermost radial location of the data storage disc and an outermost radial storage location of the data storage disc; and

a snubber supported by the actuator and having a distal edge configured, in relation to a reference plane including the first axis and the second axis when the actuator is rotated to position the data transfer member at the innermost radial location, on one side of the reference plane as being concave to the second axis and disposed between an outer edge of the data storage disc and the outermost radial storage location, and on the other side of the reference plane as being non-concave to the second axis and disposed between the outer edge of the data storage disc and the outermost radial storage location.

12. The actuator of claim 11 wherein the distal edge on the one side of the reference plane defines a first radius and the distal edge on the other side of the reference plane defines a second radius different than the first radius.

13. The actuator of claim 12 wherein the first radius is centered at the second axis.

14. The actuator of claim 12 wherein the second radius is centered at the first axis.

15. The actuator of claim 12 wherein the first radius is defined by being tangential to a radial edge of an annulus of non-storage space of the data storage disc between the outer edge of the data storage disc and the outermost radial storage location.

16. The actuator of claim 12 wherein the second radius is defined by a radial edge of an annulus of non-storage space of the data storage disc between an outer edge of the data storage disc and the outermost radial storage location.

17. The actuator of claim 11 wherein the actuator and the snubber are unitarily constructed.

18. The actuator of claim 11 wherein the innermost radial location is a non-data storage space of the data storage disc.

19. The actuator of claim 11 wherein the innermost radial location is an innermost data storage location of the data storage disc.

20. A method comprising:

obtaining an actuator for a data storage device having a data storage disc that is rotatable around a first axis, the actuator being operably rotatable around a second axis to position a data transfer member between an innermost radial location of the data storage disc and an outermost radial storage location of the data storage disc, and a snubber supported by the actuator and having a distal edge configured, in relation to a reference plane including the first axis and the second axis when the actuator is rotated to position the data transfer member at the innermost radial location, on one side of the reference plane as being concave to the second axis and on the other side of the reference plane as being non-concave to the second axis;

rotating the actuator to move the data transfer member to a first radial storage location where only the distal edge on the one side of the reference plane is within an annulus of non-storage space of the data storage disc between the outer edge of the data storage disc and the outermost radial storage location; and

rotating the actuator to move the data transfer member to a second radial storage location where the distal edge on the other side of the reference plane is within the annulus.

Assignments (8)
RELEASE OF SECURITY INTEREST Recorded Jul 23, 2025
From: THE BANK OF NOVA SCOTIA
To: SEAGATE TECHNOLOGY PUBLIC LIMITED COMPANY; SEAGATE TECHNOLOGY; SEAGATE TECHNOLOGY HDD HOLDINGS; I365 INC.; SEAGATE TECHNOLOGY LLC; SEAGATE TECHNOLOGY INTERNATIONAL; SEAGATE HDD CAYMAN; SEAGATE TECHNOLOGY (US) HOLDINGS, INC.
Reel/Frame 072193/0001 →
RELEASE OF SECURITY INTEREST Recorded Feb 28, 2025
From: THE BANK OF NOVA SCOTIA
To: SEAGATE TECHNOLOGY US HOLDINGS, INC.; EVAULT, INC. (F/K/A I365 INC.); SEAGATE TECHNOLOGY LLC
Reel/Frame 070363/0903 →
RELEASE OF SECURITY INTEREST Recorded Jul 23, 2024
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
To: SEAGATE TECHNOLOGY LLC; EVAULT INC
Reel/Frame 068457/0076 →
RELEASE OF SECURITY INTEREST Recorded May 20, 2024
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
To: SEAGATE TECHNOLOGY LLC; EVAULT, INC. (F/K/A I365 INC.); SEAGATE TECHNOLOGY US HOLDINGS, INC.
Reel/Frame 067471/0955 →
SECURITY AGREEMENT Recorded Oct 15, 2012
From: SEAGATE TECHNOLOGY LLC; EVAULT, INC. (F/K/A I365 INC.); SEAGATE TECHNOLOGY US HOLDINGS, INC.
To: THE BANK OF NOVA SCOTIA, AS ADMINISTRATIVE AGENT
Reel/Frame 029127/0527 →
SECOND LIEN PATENT SECURITY AGREEMENT Recorded Oct 15, 2012
From: SEAGATE TECHNOLOGY LLC; EVAULT, INC. (F/K/A I365 INC.); SEAGATE TECHNOLOGY US HOLDINGS, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 029253/0585 →
SECURITY AGREEMENT Recorded Mar 24, 2011
From: SEAGATE TECHNOLOGY LLC
To: THE BANK OF NOVA SCOTIA, AS ADMINISTRATIVE AGENT
Reel/Frame 026010/0350 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 16, 2010
From: LEE, CHUEN BUAN; LIM, CHOON KIAT; LIU, XIONG; LIM, JUI JING
To: SEAGATE TECHNOLOGY LLC
Reel/Frame 024247/0704 →