Apparatus for controlling humidity in a disk drive enclosure

Details Apparatus for controlling humidity in a disk drive enclosure Apparatus for controlling humidity in a disk drive enclosure

1996-12-05

1997-07-22

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 2303

Patent

active

056508905

ABSTRACT:
The inside wall of a head/disk enclosure is given a surface broad enough to adsorb and release easily a large amount of water vapor. In a first embodiment, the inside surface is treated by anodic oxidation using oxalic acid. In a second embodiment, the inside surface is treated with sodium carbonate and sodium chromate. In a third embodiment, the surface was etched with acid. The water adsorption capability acts as a buffer to prevent extremes of relative humidity within the enclosure.

REFERENCES:
patent: 4967295 (1990-10-01), Yamauchi et al.
patent: 5012360 (1991-04-01), Yamauchi et al.
patent: 5075807 (1991-12-01), Inoue et al.

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