Disc clamp having adjustable balance ring
US6594109B2 · kind B2 · utility
13Cited by
15References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 21, 2001 |
| Grant date | Jul 15, 2003 |
| Priority date | — |
| Expiry date | Dec 28, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/2027
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disc clamp assembly and method for balancing a spindle hub assembly within a disc drive utilizes a base piece, a balance ring retainer piece and a balance ring. The disc clamp base piece is positioned on the top surface of the rotatable spindle hub to secure a disc stack to the spindle hub. The balance ring retainer piece is attached to the top surface of the base piece and defines a peripheral rim for accepting a balance ring. The balance ring has a predetermined mass to modify the center of gravity of the spindle hub assembly toward the central axis of rotation for the spindle hub.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.