Magnetic recording device using circumferentially offset heads with double sided media
US4928196A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1988 |
| Grant date | May 22, 1990 |
| Priority date | — |
| Expiry date | Apr 4, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pair of oppositely-disposed stabilizer devices support opposed magnetic heads for interfacing with opposite sides of a rotating magnetic disk. Each stabilizer device includes a block with an opening through which the magnetic head protrudes for engagement with a respective side of the disk. A flat, circumferential air bearing surface on each block surrounds the opening adjacent the disk for generating coupling forces that deform the disk out of its nominal plane on opposite sides thereof and into intimate contact with the transducing gaps on the respective heads. The stabilizer devices are positioned in relation to separate radii depending from the center of the drive spindle so that a circumferential offset is established that permits substantially separate interaction of the air bearing surfaces with the disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.