Air filtration system for disc drives

Details Air filtration system for disc drives Air filtration system for disc drives

1988-07-18

1989-12-19

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 1702

Patent

active

048886556

ABSTRACT:
An improved air filtration system for a disc drive system having magnetic information storage media located within a sealed housing having upper and lower casing members. The media, as well as the majority of the drives components are primarily secured to the lower casing. The filtration system includes a breather filter and a recirculation filter that are both mounted to the upper casing such that when the drive is disassembled, the air filtration system is automatically removed from the drive to provide the operator with better access to the various drive components. The breather filter is placed above the disc pack in a region of low pressure to maintain the drive at above atmospheric pressure during operation. The recirculation filter is placed in a region having high air flow rates.

REFERENCES:
patent: 4130845 (1978-12-01), Kulma
patent: 4418369 (1983-11-01), Applequist et al.
patent: 4471395 (1984-09-01), Beck et al.
patent: 4489356 (1984-12-01), Farmer
patent: 4780776 (1988-10-01), Dushkes

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