Vacuum apparatus
US6556536B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2000 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Nov 29, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/261
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A vacuum apparatus particularly suitable for disk recording systems has a rotatable shaft mounted on a support body by an air bearing, the air bearing being provided within a vacuum chamber. A second rotatable shaft extends through the wall of the vacuum chamber in which it is mounted by a second air bearing. The second shaft has a hollow center which communicates with an output of the air bearing for removal of air exhausting from the air bearing. The air bearing may be provided within a second chamber within the vacuum chamber and may be movable relative to the axis of the second shaft. In a disk recording system, the air bearing may support a turntable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.