Damped spindle motor flange for the disk pack in a hard disk drive
US7256961B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2004 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | Jul 12, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention includes a spindle motor with a dampened spindle motor flange, which includes a shallow groove on the disk face. The shallow groove includes a first rim, a trough, and a second rim. In use, the trough fills with a visco-elastic material compressed by a metallic ring. A disk pack assembly uses the spindle motor coupling through the dampened spindle motor flange to at least one clamped disk. The invention includes a disk pack using the spindle motor, visco-elastic material, and metallic ring, as well as hard disk drives built with these disk packs. The invention includes the method of disk pack assembly, as well as making a hard disk drive using disk pack. The manufactured disk pack and the hard disk drive are products of the invention's processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.