Vacuum apparatus
AssigneeUnaxis Nimbus Limited
InventorsGerald Alfred John Reynolds, Jonathan Halliday
Life of this patent
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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.
Claims10
A vacuum apparatus including
- a vacuum chamber,
- a rotatable shaft mounted on a support body via a first air bearing, the first air bearing being provided within the vacuum chamber,
- a second rotatable shaft extending through a wall of a casing of the vacuum chamber and mounted therein by a second air bearing
- wherein the second shaft is hollow along its axis of rotation and the hollow portion is in communication with at least one air output from the first air bearing for the removal of air exhausting from the first air bearing.
Dependencies are inferred from the claim text.