Disk drive having apertures aligned near the inner diameter of a disk stack for allowing airflow to pass through the apertures to reduce disk flutter
US7224551B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2004 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Jul 27, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/148
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive includes a base, a spindle motor attached to the base, the spindle motor including a hub having hub apertures, a plurality of disks on the spindle motor and including a first and a second disk, a disk spacer between the first and second disks, and a disk clamp. The disk spacer has a plurality of spacer through apertures. Each of the spacer through apertures extend radially through the disk spacer. The disk clamp has clamp through apertures adjacent to an inner diameter of the disk clamp. Each of the clamp through apertures extend longitudinally through the disk clamp. The clamp through apertures, the hub apertures and the spacer through apertures are aligned for allowing airflow to pass through the apertures when the disks are rotating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.