Hybrid burnish/glide head with advanced air bearing fly height control rails
US6503132B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2001 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Jun 4, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disc burnishing system configured to contact and level irregularities located on a surface of a disc is provided. The system includes a motor to rotate the disc and an armature. A slider is carried on the armature over the surface of the disc. The slider includes at least one raised air bearing rail disposed on and extending from a bottom surface that faces the disc. At least one burnish pad is disposed on the bottom surface and extends towards the disc. Each burnish pad is spaced apart from each raised air bearing rail. In accordance with one embodiment of the system, a defect detection apparatus is operably disposed relative the slider and is utilized to first detect an irregularity before it is burnished.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.