US4979062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disk drive architecture
Assignee: Seagate Technology LLC
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Filing: 1990-01-18
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Granted: 1990-12-18
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Expires: 2010-01-18
Abstract
Abstract A disk drive assembly which is resistant to physical shocks and thermally caused distortion, including an end plate, a casing attached to the end plate, and a base plate enclosed in the casing and mounted to the end plate. The end plate supports a rotatable disk and an actuator assembly for reading information from and recording information on the disk. The end plate and the casing form a seal to provide a controlled environment within the casing and the base plate is attached to the end plate in the controlled environment.
Inventors
- 👤 Frederick M. Stefansky
- 👤 Glade N. Bagnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:13
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/021; G11B33/00; G11B33/02; G11B33/08; G11B33/14; G11B33/1406; G11B33/1433
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
214 words
A disk drive, comprising: a shock frame having mounting points; control means for generating control signals; and a hard disk drive assembly, mounted on said shock frame at said mounting points, comprising: an end plate having a peripheral edge, a gasket provided on said peripheral edge of said end plate, a casing having an opening, said casing being attached to said end plate so that said opening of said casing engages said gasket to provide a sealed environment within said casing, a planar base plate having a first end mounted to said end plate so that said base plate is substantially perpendicular to said end plate and a second end mounted to said casing, said base plate residing in said sealed environment, a top plate mounted on said base plate, means, rotatably supported by said base plate, for storing information, rotating means, responsive to said control signals, for rotating said disk means, read and record means, responsive to said control signals, for reading information from said means for storing and recording information on said means for storing, means for transferring said control signals from the control means to the environment within said casing, and flexible circuit means for electrically interconnecting said means for transferring with said read and record means and said rotating means.
Claim 2
Dependent Claim
214 words
A disk drive, comprising: a shock frame having mounting points; control means for generating control signals; and a hard disk drive assembly, mounted on said shock frame at said mounting points, comprising: an end plate having a peripheral edge, a gasket provided on said peripheral edge of said end plate, a casing having an opening, said casing being attached to said end plate so that said opening of said casing engages said gasket to provide a sealed environment within said casing, a planar base plate having a first end mounted to said end plate so that said base plate is substantially perpendicular to said end plate and a second end mounted to said casing, said base plate residing in said sealed environment, a top plate mounted on said base plate, means, rotatably supported by said base plate, for storing information, rotating means, responsive to said control signals, for rotating said disk means, read and record means, responsive to said control signals, for reading information from said means for storing and recording information on said means for storing, means for transferring said control signals from the control means to the environment within said casing, and flexible circuit means for electrically interconnecting said means for transferring with said read and record means and said rotating means.
Claim 3
Dependent Claim
67 words
A disk drive according to claim 1, wherein: said read and record means comprises: transducer means for interacting with said disk means to read and record information, and positioning means for positioning said transducer means with respect to said disk means; said means for transferring is provided in said end plate; and said flexible circuit electrically interconnects said header with said transducer means and said positioning means.
Claim 4
Dependent Claim
129 words
A hard disk drive assembly, comprising: an end plate; a casing attached to said end plate; a gasket provided between said casing and said end plate to form a seal and to provide a sealed environment isolated from ambient conditions within said casing; a planar base plate, said base plate having a first end semirigidly mounted to said end plate and a second end attached to said casing, said base plate residing in the sealed environment; a planar top plate mounted on said base plate; a disk assembly mounted on said base plate, said disk assembly including a disk and means for rotating said disk; and read and record means supported by said top and base plates for reading information from said disk and recording information on said disk.
Claim 5
Dependent Claim
129 words
A hard disk drive assembly, comprising: an end plate; a casing attached to said end plate; a gasket provided between said casing and said end plate to form a seal and to provide a sealed environment isolated from ambient conditions within said casing; a planar base plate, said base plate having a first end semirigidly mounted to said end plate and a second end attached to said casing, said base plate residing in the sealed environment; a planar top plate mounted on said base plate; a disk assembly mounted on said base plate, said disk assembly including a disk and means for rotating said disk; and read and record means supported by said top and base plates for reading information from said disk and recording information on said disk.
Claim 6
Dependent Claim
38 words
A disk drive assembly according to claim 3, wherein said base plate is semi-rigidly mounted to said end plate so that said base plate pivots with respect to said end plate in the plane of the base plate.
Claim 7
Dependent Claim
23 words
A disk drive assembly according to claim 3, wherein said disk assembly comprises a plurality of disks and means for rotating said disks.
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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) | 1993-12-17 | 1994-06-18 | 1994-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-17 | 1998-06-18 | 1998-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-17 | 2002-06-18 | 2002-12-18 | $7700.00 | Window Closed / Lapsed |