Disc clamp adjustment using heat
US6703584B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2002 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Aug 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/0287
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of adjusting a distribution of clamping pressure applied to a disc by a disc clamp includes identifying an uneven distribution of clamping pressure applied to the disc by the disc clamp. A quantity of heat is determined and applied to the disc clamp to remedy the uneven distribution of clamping pressure. A system for adjusting a clamping pressure applied to a data storage disc by a disc clamp includes a disc pack assembly having a disc clamp securing a disc to a spindle motor hub. The system also includes means for identifying an uneven distribution of clamping pressure applied to the disc by the disc clamp and for remedying the uneven distribution of clamping pressure by heating the disc clamp for a period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.