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US6724566B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic damper for a disc drive
Assignee: Seagate Technology LLC
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Filing: 2002-03-21
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Granted: 2004-04-20
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Expires: 2022-03-21
Abstract
Abstract A disc drive device includes a base plate, a voice coil motor operably attached to the base plate, a top cover attached to the base plate with at least two perimeter fasteners and at least one interior fastener, wherein the two perimeter fasteners and the interior fastener form a triangular portion of the top cover therebetween, a pressure seal sealing the top cover and the base plate, and an acoustic damper contacting the voice coil motor and the triangular portion of the top cover for damping vibrations occurring in the voice coil motor and the top cover. The acoustic damper is made of the same material as the pressure seal. In this manner, vibrationally induced acoustical emissions from the disc drive device are reduced.
Inventors
- 👤 Rishi Kant
- 👤 Menachem Rafaelof
- 👤 Michael Alan Maiers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:19
CPC Classifications
G; G11; G11B; G11B33/00; G11B33/02; G11B33/08; G11B33/14; G11B33/1446; G11B33/1466
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
103 words
A disc drive comprising: a base plate; a voice coil motor operably attached to the base plate; a top cover attached to the base plate with perimeter fasteners and one interior fastener, wherein two perimeter fasteners and the interior fastener form a triangular portion of the top cover; a pressure seal formed of a material positioned between the top cover and the base plate; and a first acoustic damper wholly within the triangular portion and positioned between and contacting the voice coil motor and the triangular portion of the top cover, wherein the acoustic damper comprises the same material as the pressure seal.
Claim 2
Dependent Claim
103 words
A disc drive comprising: a base plate; a voice coil motor operably attached to the base plate; a top cover attached to the base plate with perimeter fasteners and one interior fastener, wherein two perimeter fasteners and the interior fastener form a triangular portion of the top cover; a pressure seal formed of a material positioned between the top cover and the base plate; and a first acoustic damper wholly within the triangular portion and positioned between and contacting the voice coil motor and the triangular portion of the top cover, wherein the acoustic damper comprises the same material as the pressure seal.
Claim 3
Dependent Claim
66 words
The disc drive of claim 1 , wherein the voice coil motor comprises: a bottom pole attached to the base plate; and a top pole operably connected to the bottom pole in a manner such that the top pole is maintained in a spaced relationship to the bottom pole, wherein the first acoustic damper contacts the top pole and the triangular portion of the top cover.
Claim 4
Dependent Claim
20 words
The disc drive of claim 1 , wherein the pressure seal and the acoustic damper comprise a fluoroelastomer damping material.
Claim 5
Dependent Claim
20 words
The disc drive of claim 1 , wherein the pressure seal and the acoustic damper comprise a viscoelastic damping material.
Claim 6
Dependent Claim
22 words
The disc drive of claim 1 , wherein the acoustic damper is adhesively attached to the triangular portion of the top cover.
Claim 7
Dependent Claim
19 words
The disc drive of claim 1 , wherein the acoustic damper is adhesively attached to the voice coil motor.
Claim 8
Dependent Claim
25 words
The disc drive of claim 1 , further comprising: a second acoustic damper positioned between and contacting the voice coil motor and the base plate.
Claim 9
Dependent Claim
75 words
The disc drive of claim 7 , further comprising: a bottom pole attached to the base plate; and a top pole operably connected to the bottom pole in a manner such that the top pole is maintained in a spaced relationship to the bottom pole, wherein the first acoustic damper contacts top pole and the triangular portion of the top cover, and wherein the second acoustic damper contacts the bottom pole and the base plate.
Claim 10
Dependent Claim
21 words
The disc drive of claim 1 , wherein the acoustic damper is centered within the triangular portion of the top cover.
Claim 11
Dependent Claim
132 words
A disc drive comprising: a base plate; a voice coil motor operably attached to the base plate; a top cover attached to the base plate with perimeter fasteners and one interior fastener, wherein two perimeter fasteners and the interior fastener form a triangular portion of the top cover; a pressure seal formed of a material positioned between the top cover and the base plate; a first acoustic damper positioned between and contacting the voice coil motor and the triangular portion of the top cover, wherein the acoustic damper comprises the same material as the pressure seal, and; a stiffening ridge in the top cover defining an isolated portion, wherein the stiffening ridge overlaps the triangular portion of the top cover and the acoustic damper contacts the isolated portion of the top cover.
Claim 12
Dependent Claim
132 words
A disc drive comprising: a base plate; a voice coil motor operably attached to the base plate; a top cover attached to the base plate with perimeter fasteners and one interior fastener, wherein two perimeter fasteners and the interior fastener form a triangular portion of the top cover; a pressure seal formed of a material positioned between the top cover and the base plate; a first acoustic damper positioned between and contacting the voice coil motor and the triangular portion of the top cover, wherein the acoustic damper comprises the same material as the pressure seal, and; a stiffening ridge in the top cover defining an isolated portion, wherein the stiffening ridge overlaps the triangular portion of the top cover and the acoustic damper contacts the isolated portion of the top cover.
Claim 13
Dependent Claim
22 words
The disc drive of claim 10 , wherein the isolated portion is contained entirely within the triangular portion of the top cover.
Claim 14
Dependent Claim
83 words
A disc drive damping system comprising: a disc drive having a base plate, a voice coil motor connected to the base plate, and a top cover attached to the base plate with two perimeter fasteners and one interior fastener forming a triangular portion of the top cover therebetween; and a first damping means positioned wholly within the triangular portion and positioned between and contacting the triangular portion of the top cover and the voice coil motor for damping vibrations in the disc drive.
Claim 15
Dependent Claim
83 words
A disc drive damping system comprising: a disc drive having a base plate, a voice coil motor connected to the base plate, and a top cover attached to the base plate with two perimeter fasteners and one interior fastener forming a triangular portion of the top cover therebetween; and a first damping means positioned wholly within the triangular portion and positioned between and contacting the triangular portion of the top cover and the voice coil motor for damping vibrations in the disc drive.
Claim 16
Dependent Claim
23 words
The disc drive damping system of claim 12 , further comprising a pressure seal positioned between the top cover and the base plate.
Claim 17
Dependent Claim
31 words
The disc drive damping system of claim 12 , further comprising a second damping means positioned between the base plate and the voice coil motor for damping vibrations the disc drive.
Claim 18
Dependent Claim
66 words
The disc drive damping system of claim 12 , further comprising: a bottom pole attached to the base plate; and a top pole operably connected to the bottom pole in a manner such that the top pole is maintained in a spaced relationship to the bottom pole, wherein the first damping means contacts the top pole and the triangular portion of the of the top cover.
References Cited (Backward Citations)
US4367503A
Cited
US4814925A
Cited
US4791508A
Cited
US4870703A
Cited
US4974103A
Cited
US5282100A
Cited
US5461268A
Cited
US5454157A
Cited
US5376850A
Cited
US5422766A
Cited
US5483398A
Cited
US5761184A
Cited
US5781373A
Cited
US6256165B1
Cited
US6498700B2
Cited
US6473263B2
Cited
US6175469B1
Cited
US6608732B2
Cited
US6603633B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-04-20 | 2007-10-20 | 2008-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-04-20 | 2011-10-20 | 2012-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-04-20 | 2015-10-20 | 2016-04-20 | $7700.00 | Window Closed / Lapsed |