Recirculating filter duct design

Details Recirculating filter duct design Recirculating filter duct design

1981-03-02

1982-12-07

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360133, G11B 2302, G11B 2504

Patent

active

043630570

ABSTRACT:
A disk file is equipped with a recirculating filter duct utilizing the pressure differentials within an enclosure imparted by the rotating disk to induce an air flow in the duct having an inlet near the disk periphery and an outlet effectively radially inward thereof. The flow of air through this duct is enhanced by a deflector adjacent the duct outlet at the side thereof initially approached by a given point on the rotating disk and a projection approaching the opposite surface of the disk or disk pack and generally axially aligned with the deflector to equalize the forces exerted and avoid instability of disk operation. The duct is configured to eliminate eddy currents and the air volume within the enclosure is limited to increase the rate at which air changes occur.

REFERENCES:
patent: 3812534 (1974-05-01), Rosseau et al.
patent: 3825951 (1974-07-01), Katsumori et al.
patent: 3973273 (1976-08-01), Lissner et al.
patent: 4008492 (1977-02-01), Elsing
patent: 4130845 (1978-12-01), Kulma

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