Head slider having extension rails to provide uniform...

Details Head slider having extension rails to provide uniform... Head slider having extension rails to provide uniform...

2007-06-26

2007-06-26

Heinz, A. J. (Department: 2627)

Dynamic magnetic information storage or retrieval

Fluid bearing head support

Disk record

Reexamination Certificate

active

10785971

ABSTRACT:
A head slider including a disk-facing surface having an inflow end and outflow end, inflow-end-side rail, negative pressure part, three extension rails, a pair of siderails, an inflow-end-side-positive-pressure part, and outflow-end-side-positive-pressure part, and an outflow end rail. The extension rails protrude towards the negative pressure part, and are formed lower than the inflow-end-side-positive-pressure part. As a result of air flowing in from the inflow end, a positive pressure (flotation force) is imparted to the inflow-end-side-positive-pressure part, and a negative pressure is imparted to the negative pressure part. The negative pressure which cancels the positive pressure acts to a suitable extent without being affected by atmospheric pressure variations, so the flotation amount is controlled to a fixed value regardless of variations of altitude (atmospheric pressure).

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