Disk cartridge contamination shield

Details Disk cartridge contamination shield Disk cartridge contamination shield

1976-10-04

1978-09-05

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

206444, 360133, G11B 2302, G11B 2504, G11B 5012

Patent

active

041124715

ABSTRACT:
Apparatus for housing a rotatable disk used in an information storage apparatus having a disk as the memory storage member. The housing comprises a disk cartridge for holding the disk, the disk cartridge having an aperture which allows the transducer to access the disk, and further comprises a contamination shield interposed in the aperture for smoothing air flow through the aperture. In the absence of the shield, vortices of air form at the aperture which sweep air-borne contaminants into the cartridge and thereby expose the disk to contamination. The shield prevents the vortices from forming, thus eliminating a major cause of disk contamination.

REFERENCES:
patent: 3631423 (1971-12-01), Groom
patent: 3720931 (1973-03-01), Andersen
patent: 3731291 (1973-05-01), Walsh
patent: 3800325 (1974-03-01), O'Brien
patent: 3812534 (1974-05-01), Rousseau et al.
patent: 3839734 (1974-10-01), George et al.

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