Air stripper for improved spindle sync
US5134530A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 1990 |
| Grant date | Jul 28, 1992 |
| Priority date | — |
| Expiry date | Aug 10, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/148
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An air stripper for stripping air in a head disk assembly within a magnetic disk drive. The head disk assembly includes a spindle, a magnetic disk, a head arm and the air stripper. The magnetic disk is secured to the spindle for rotation about a central axis and includes a generally planar surface between an inner disk diameter and an outer disk diameter. Rotation of the disk causes a volume of air adjacent the disk surface to flow in the direction of disk rotation. The head arm is positioned proximate the disk surface for actuation across the disk surface through the volume of air. The air stripper is positioned proximate the disk surface and upstream from the head arm with respect to the direction of air flow. The air stripper extends into the volume of air for generally uniformly stripping air such that rotational velocity of the disk is substantially unaffected by actuation of the head arm across the volume of air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.