Air bearing slider with variable sub-ambient pressure control

Details Air bearing slider with variable sub-ambient pressure control Air bearing slider with variable sub-ambient pressure control

1996-01-26

1997-10-14

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 560

Patent

active

056778120

ABSTRACT:
An air bearing slider that maintains a relatively uniform flying height during variations in air speed and the skew of the slider. The slider has a raised rail disposed along the bottom surface of the slider body that forms a cavity. The cavity is configured to produce a subambient pressure when an air flow passes across the slider. The rail possesses a plurality of air bearing surfaces and has an opening positioned along the inner side of the slider. The opening is positioned and sized to provide a variable air flow into the cavity as the skew angle between the longitudinal axis of the slider and the direction of air flow changes. In this manner, a variable subambient pressure is developed within the cavity as the slider moves radially along the surface of a disk.

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