Patent US3768083A successfully refreshed from Google Patents.
US3768083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baseplate assembly for a disc drive
Assignee: Information Storage Systems Inc
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Filing: 1972-08-10
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Granted: 1973-10-23
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Expires: 1992-08-10
Abstract
Abstract This invention relates particularly to direct access data storage devices, and more particularly, to a disc drive wherein data is recorded on a rotating disc by means of a read/write head moveable to precise data track positions located on the disc surface. For accurate positioning of the head relative to the disc, the head support mechanism and the disc are supported on a baseplate assembly of a special design.
Inventors
- 👤 I Pejcha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:45
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/03; G11B23/032; G11B23/0323; G11B5/00; G11B5/48; G11B5/54; G11B5/55; G11B5/5521
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
136 words
In a data storage apparatus for transferring data to or from a memory device by the interaction between a read/write head and the memory device, a stiff first baseplate section, means for supporting said memory device on the first baseplate section, head support means on said first baseplate section for supporting the head adjacent the memory device, a second baseplate section fixed in position relative to the first baseplate section in a manner to limit the transmisison of vibratory forces between the baseplate sections, and means connected to the memory device for moving the device past the head, whereby said first baseplate section, head support means and memory device support means together comprise a mechanical servo loop for positioning the heads relative to the memory device, which loop is mechanically isolated from the second baseplate section.
Claim 2
Dependent Claim
136 words
In a data storage apparatus for transferring data to or from a memory device by the interaction between a read/write head and the memory device, a stiff first baseplate section, means for supporting said memory device on the first baseplate section, head support means on said first baseplate section for supporting the head adjacent the memory device, a second baseplate section fixed in position relative to the first baseplate section in a manner to limit the transmisison of vibratory forces between the baseplate sections, and means connected to the memory device for moving the device past the head, whereby said first baseplate section, head support means and memory device support means together comprise a mechanical servo loop for positioning the heads relative to the memory device, which loop is mechanically isolated from the second baseplate section.
Claim 3
Dependent Claim
24 words
A data storage apparatus as defined in claim 1 wherein said means for moving the memory device is supported on the second baseplate section.
Claim 4
Dependent Claim
24 words
A data storage apparatus as defined in claim 1 wherein means for moving said head support means is mounted on said second baseplate section.
Claim 5
Dependent Claim
28 words
A data storage apparatus as defined in claim 1 wherein said second baseplate section includes an opening therein and said first baseplate section is positioned within said opening.
Claim 6
Dependent Claim
29 words
A data storage apparatus as defined in claim 3 including vibration damping means fixed to said second baseplate section for supporting said means for moving said head support means.
Claim 7
Dependent Claim
23 words
A data storage apparatus as defined in claim 3 wherein said memory device includes a rotatable disc on which data can be recorded.
Claim 8
Dependent Claim
56 words
A data storage apparatus as defined in claim 1 wherein said second baseplate section is fixed in position relative to said first baseplate section by means serving to damp the transmission of vibratory forces between the sections in those frequency ranges most commonly existing in the apparatus and caused inpart by the memory device moving means.
Claim 9
Dependent Claim
57 words
A data storage apparatus as defined in claim 4 wherein said second baseplate section is fixed in position relative to said first baseplate section by means serving to damp the transmission of vibratory forces between the sections in those frequency ranges most commonly existing in the apparatus and caused in part by the memory device moving means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |