Speed and skew independent, air bearing slider
US5537273A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1995 |
| Grant date | Jul 16, 1996 |
| Priority date | — |
| Expiry date | Jan 27, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An air bearing slider incorporating the invention has both front and rear pads extending from a generally planar body. Both pads have bearing faces separated by a gap that is substantially in excess of any fly height of the slider. The sides of both pads are oriented at a rake angle that is approximately equal to the maximum expected skew angle. The separation of the pads enables the slider to exhibit good pitch stability, and the pad rake angles provide resistance to roll effects that occur at large skew angles. Both pad faces exhibit extremely small taper angles that enable "inlet throttling" of air entrained by the slider. Such inlet throttling provides the slider with a fly height that is substantially independent of relative speed changes between the slider and a recording medium. A further embodiment includes a rear slider for contact recording applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.