Method and apparatus for cleaning disks upon reaching a disk drive start-stop cycle threshold
US5612830A · kind A · utility
25Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1994 |
| Grant date | Mar 18, 1997 |
| Priority date | — |
| Expiry date | Sep 14, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B25/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The back edge of a disk drive slider is used to remove debris from disk media by slowly sweeping it from the inner diameter of the disk to the outer diameter of the disk while the disk is rotating backwards from normal. The sweeping operation is completed while the disks are still gaining rotational speed so that liftoff velocity is not achieved. Material accumulated on the back edge of the slider is either dumped at the outer diameter of the disk, or remains on the back edge of the slider as normal operation is commenced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.