Method and apparatus for cleaning disks
US5351156A · kind A · utility
26Cited by
7References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1992 |
| Grant date | Sep 27, 1994 |
| Priority date | — |
| Expiry date | Mar 25, 2012 |
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.