IP Library Granted Patent US 9,196,275
Granted Patent B1
US 9,196,275 · App. 14/312,592 · Granted Nov 24, 2015

Magnetic head separator fin material to prevent particulate contamination on slider

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Quick Facts
Patent No.
US 9,196,275
App. No.
14/312,592
Granted
Nov 24, 2015
Kind
B1
Abstract

An apparatus for a magnetic storage drive includes a magnetic head assembly having a first slider and a second slider arranged with a gap between the first and second sliders, the first slider comprising a first magnetic head and the second slider comprising a second magnetic head. The apparatus includes a ramp constructed of a first material, the ramp being configured to guide and hold the magnetic head assembly in place when parked; and a fin constructed of a second material different than the first material, the fin arranged with the ramp to protect the first slider from contacting the second slider when the magnetic head assembly is parked on the ramp.

Claims (35)

1. An apparatus for a magnetic storage drive comprising a magnetic head assembly having a first slider and a second slider arranged with a gap between the first and second sliders, the first slider comprising a first magnetic head and the second slider comprising a second magnetic head, the apparatus comprising:

a ramp constructed of a first material, the ramp being configured to guide and hold the magnetic head assembly in place when parked; and

a fin constructed of a second material different than the first material, the fin coupled to the ramp and arranged between the first slider and the second slider to protect the first slider from contacting the second slider while maintaining a clearance to each of the first slider and the second slider when the magnetic head assembly is parked on the ramp.

2. The apparatus of claim 1 , wherein the second material is substantially free of polyoxymethylene.

3. The apparatus of claim 1 , wherein the second material has a hardness in a range of about 95-130 Rockwell M.

4. The apparatus of claim 1 , wherein the second material has a tensile modulus greater than about 2.5 GPa and less than about 10 GPa.

5. The apparatus of claim 1 , wherein the second material comprises a polyetherimide (PEI) material.

6. The apparatus of claim 1 , wherein the second material comprises a polyetheretherketone (PEEK) material.

7. The apparatus of claim 1 , wherein the second material comprises a polyphenylene sulfide (PPS) material.

8. The apparatus of claim 1 , wherein the second material comprises a polyethersulfone (PES) material.

9. The apparatus of claim 1 , wherein the second material comprises a polyimide material.

10. The apparatus of claim 1 , wherein the second material comprises a polyamide-imide material.

11. The apparatus of claim 1 , wherein the fin extends from the ramp along a gap between the first slider and the second slider when the magnetic head assembly is parked on the ramp.

12. An apparatus for a magnetic storage drive comprising a magnetic head assembly having a first slider and a second slider arranged with a gap between the first and second sliders, the first slider comprising a first magnetic head and the second slider comprising a second magnetic head, the apparatus comprising:

a ramp constructed of a first material and configured to guide and hold the magnetic head assembly in place when parked; and

means for protecting the first slider from contacting the second slider, the means for protecting being arranged between the first slider and the second slider while maintaining a clearance to each of the first slider and the second slider when the magnetic head assembly is parked on the ramp;

wherein the means for protecting is constructed of a second material different than the first material.

13. The apparatus of claim 12 , wherein the second material comprises material substantially free of polyoxymethylene.

14. The apparatus of claim 12 , wherein the second material comprises material having a hardness in a range of about 95-130 Rockwell M.

15. The apparatus of claim 12 , wherein the second material comprises material having a tensile modulus greater than about 2.5 GPa and less than about 10 GPa.

16. The apparatus of claim 12 , wherein the second material comprises a polyetherimide (PEI) material.

17. The apparatus of claim 12 , wherein the second material comprises a polyetheretherketone (PEEK) material.

18. The apparatus of claim 12 , wherein the second material comprises a polyphenylene sulfide (PPS) material.

19. The apparatus of claim 12 , wherein the second material comprises a polyethersulfone (PES) material.

20. The apparatus of claim 12 , wherein the second material comprises a polyimide material.

21. The apparatus of claim 12 , wherein the second material comprises a polyamide-imide material.

22. The apparatus of claim 12 , wherein the means for protecting extends from the ramp along a gap between the first slider and the second slider when the magnetic head assembly is parked on the ramp.

23. A magnetic storage drive, comprising:

a rotatable storage disk;

a first slider with a first magnetic head assembly and a second slider with a second magnetic head assembly arranged with a gap between the first and second sliders for allowing passage across opposing sides of the storage disk, the first slider comprising a first magnetic head and the second slider comprising a second magnetic head;

a ramp constructed of a first material, the ramp being configured to guide and hold the first magnetic head assembly and the second magnetic head assembly in place when parked; and

a fin constructed of a second material different than the first material, the fin coupled to the ramp and arranged between the first slider and the second slider to protect the first slider from contacting the second slider while maintaining a clearance to each of the first slider and the second slider when the first magnetic head assembly and the second magnetic head assembly are parked on the ramp.

24. An apparatus for a magnetic storage drive comprising a magnetic head assembly having a first slider and a second slider arranged with a gap between the first and second sliders, the first slider comprising a first magnetic head and the second slider comprising a second magnetic head, the apparatus comprising:

a ramp constructed of a first material, the ramp being configured to guide and hold the magnetic head assembly in place when parked; and

a fin constructed of a second material different than the first material, the fin coupled to the ramp and arranged between the first slider and the second slider to protect the first slider from contacting the second slider when the magnetic head assembly is parked on the ramp, wherein the second material is substantially free of polyoxymethylene.

Assignments (8)
PATENT COLLATERAL AGREEMENT - DDTL LOAN AGREEMENT Recorded Aug 21, 2023
From: WESTERN DIGITAL TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 067045/0156 →
PATENT COLLATERAL AGREEMENT - A&R LOAN AGREEMENT Recorded Aug 21, 2023
From: WESTERN DIGITAL TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 064715/0001 →
RELEASE OF SECURITY INTEREST AT REEL 038744 FRAME 0481 Recorded Feb 8, 2022
From: JPMORGAN CHASE BANK, N.A.
To: WESTERN DIGITAL TECHNOLOGIES, INC.
Reel/Frame 058982/0556 →
RELEASE OF SECURITY INTEREST Recorded Mar 5, 2018
From: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT
To: WESTERN DIGITAL TECHNOLOGIES, INC.
Reel/Frame 045501/0714 →
SECURITY AGREEMENT Recorded May 17, 2016
From: WESTERN DIGITAL TECHNOLOGIES, INC.
To: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 038744/0281 →
SECURITY AGREEMENT Recorded May 17, 2016
From: WESTERN DIGITAL TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 038722/0229 →
SECURITY AGREEMENT Recorded May 17, 2016
From: WESTERN DIGITAL TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 038744/0481 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 22, 2015
From: DAVIDSON, MARC; MYERS, DAVID K.; WILLIS, TERRANCE J.
To: WESTERN DIGITAL TECHNOLOGIES, INC.
Reel/Frame 036626/0079 →