Patent US5666239A successfully refreshed from Google Patents.
US5666239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated base deck for a disc drive
Assignee: Seagate Technology LLC
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Filing: 1996-06-28
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Granted: 1997-09-09
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Expires: 2016-06-28
Abstract
Abstract A laminated base deck for a disc drive comprising a base portion and side walls extending from the base portion. The side walls mate with a top cover to provide a sealed environment for the disc drive and the base portion supports a disc drive spindle motor and actuator assembly. The base portion and side walls comprise a laminate including an interior structural layer, an exterior structural layer and a core layer disposed between the interior and exterior structural layers, wherein the structural layers provide mechanical support for the disc drive and the core layer provides improved damping of vibrations generated by the operation of the spindle motor and the actuator assembly.
Inventors
- 👤 Kenneth L. Pottebaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:32
CPC Classifications
G; G11; G11B; G11B25/00; G11B25/04; G11B25/043; G11B33/00; G11B33/02; G11B33/08; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12562
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
187 words
In a disc drive of the type having a disc and an actuator assembly adjacent the disc, the actuator assembly including a head for selectively reading and writing data stored on the disc and a coil of a voice coil motor for selectively positioning the actuator assembly relative to the disc, the disc drive further having a spindle motor for controllably rotating the disc at a selected speed and a top cover, the improvement comprising: a laminated base deck comprising a base portion and side walls extending from the base portion, the side walls engageable with the top cover to provide a sealed environment for the disc drive, the base portion supporting the spindle motor and the actuator assembly, the base portion and side walls deep drawn from a single piece of laminate and including an interior structural layer, an exterior structural layer and a core layer disposed between the interior and exterior structural layers, wherein the structural layers provide mechanical support for the disc drive and the core layer provides improved damping of vibrations generated by the operation of the spindle motor and the actuator assembly.
Claim 2
Dependent Claim
187 words
In a disc drive of the type having a disc and an actuator assembly adjacent the disc, the actuator assembly including a head for selectively reading and writing data stored on the disc and a coil of a voice coil motor for selectively positioning the actuator assembly relative to the disc, the disc drive further having a spindle motor for controllably rotating the disc at a selected speed and a top cover, the improvement comprising: a laminated base deck comprising a base portion and side walls extending from the base portion, the side walls engageable with the top cover to provide a sealed environment for the disc drive, the base portion supporting the spindle motor and the actuator assembly, the base portion and side walls deep drawn from a single piece of laminate and including an interior structural layer, an exterior structural layer and a core layer disposed between the interior and exterior structural layers, wherein the structural layers provide mechanical support for the disc drive and the core layer provides improved damping of vibrations generated by the operation of the spindle motor and the actuator assembly.
Claim 3
Dependent Claim
24 words
The improvement of claim 1, wherein the structural layers comprise layers of metal, and wherein the core layer comprises a layer of damping material.
Claim 4
Dependent Claim
15 words
The improvement of claim 2, wherein the layer of damping material comprises pressure sensitive adhesive.
Claim 5
Dependent Claim
14 words
The improvement of claim 2, wherein the structural layers comprise layers of stainless steel.
Claim 6
Dependent Claim
48 words
The improvement of claim 1, further comprising an external chassis mounted to the exterior surface of the base portion, the chassis including inwardly directed flanges for strengthening the chassis and accommodating a disc drive printed circuit board and attachment means for attaching the chassis to a user environment.
Claim 7
Dependent Claim
65 words
The improvement of claim 5, wherein the chassis comprises a c-shaped member comprising a chassis base portion substantially the same shape as the base portion of the laminated base deck, wherein the inwardly directed flanges extend from selected edges of the chassis base portion, and wherein the chassis base portion is proximately aligned with and secured to the base portion of the laminated base deck.
Claim 8
Dependent Claim
29 words
The improvement of claim 6, further including a vibro-acoustic isolator disposed between the chassis base portion and the exterior surface of the base portion of the laminated base deck.
Claim 9
Dependent Claim
23 words
The improvement of claim 7, wherein the isolator comprises a layer of pressure sensitive adhesive from about 1 to 10 mils in thickness.
Claim 10
Dependent Claim
91 words
The improvement of claim 5, wherein the chassis comprises a pair of rails, wherein each rail includes a vertical portion aligned with and secured to selected surfaces of the side walls of the laminated base deck and a base deck flange extending from the vertical portion, wherein each base deck flange is proximately aligned with the base portion of the laminated base deck and wherein a channel is formed between each base deck flange and each of the inwardly directed flanges, the channel accommodating a portion of the printed circuit board.
Claim 11
Dependent Claim
29 words
The improvement of claim 9, further including a vibro-acoustic isolator disposed between each base deck flange and the exterior surface of the base portion of the laminated base deck.
Claim 12
Dependent Claim
24 words
The improvement of claim 10, wherein the isolator comprises a layer of pressure sensitive adhesive of from about 1 to 10 mils in thickness.
Claim 13
Dependent Claim
28 words
The improvement of claim 1, further including threaded standoffs inserted into the laminated base deck at selected locations to mount the laminated base deck within a user environment.
Claim 14
Dependent Claim
29 words
The improvement of claim 12, further including solid standoffs inserted into the laminated base deck at selected locations to support the laminated base deck relative to the user environment.
Claim 15
Independent Claim
91 words
A method for forming a base deck for a disc drive having a spindle motor and an actuator assembly, the method comprising the steps of: providing a sheet of laminate comprising an interior structural layer, an exterior structural layer and a core layer disposed between the interior and exterior structural layers; and deep drawing the sheet of laminate to form a base portion and side walls extending from the base portion, the side walls mateable with a disc drive top cover to provide a sealed internal environment for the disc drive.
Claim 16
Independent Claim
91 words
A method for forming a base deck for a disc drive having a spindle motor and an actuator assembly, the method comprising the steps of: providing a sheet of laminate comprising an interior structural layer, an exterior structural layer and a core layer disposed between the interior and exterior structural layers; and deep drawing the sheet of laminate to form a base portion and side walls extending from the base portion, the side walls mateable with a disc drive top cover to provide a sealed internal environment for the disc drive.
Claim 17
Dependent Claim
32 words
The method of claim 14, further comprising the step of forming a boss from a selected portion of the base portion of the base deck to support the disc drive spindle motor.
Claim 18
Dependent Claim
33 words
The method of claim 15, further comprising the step of forming a beveled portion from a selected portion of the base portion of the base deck to support the disc drive actuator assembly.
Claim 19
Dependent Claim
31 words
The method of claim 14, further comprising the step of inserting a threaded standoff in a selected portion of the base portion to mount the base deck within a user environment.
Claim 20
Dependent Claim
32 words
The method of claim 17, further comprising the step of inserting a solid standoff in a selected portion of the base portion to support the base deck relative to the user environment.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-09-08 | 2001-03-10 | 2001-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-09-08 | 2005-03-10 | 2005-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-09-08 | 2009-03-10 | 2009-09-09 | $7700.00 | Window Closed / Lapsed |