Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1981-09-28
1984-01-31
Popek, Joseph A.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
G11B 2304, G11B 2504
Patent
active
044293364
ABSTRACT:
A rigid magnetic disc memory apparatus having an aperture formed in the base such that contaminants from the bearings are removed before they can migrate into the vicinity of the discs. In a preferred embodiment the aperture is located in the region of high pressure created by a rotor and stator assembly. The pressure differential causes air and contaminants to flow out of the disc drive enclosure. The pressure differential across the aperture is increased by connecting a duct between the aperture and the inlet side of the clean air supply blower.
REFERENCES:
patent: 4054931 (1977-10-01), Bolton et al.
patent: 4130845 (1978-12-01), Kulma
patent: 4249221 (1981-02-01), Cox et al.
Berube Normand A.
Hinlein Sigmund
Otavsky Pavel
Wiseley Thomas
Data General Corporation
Dulaney Robert L.
Popek Joseph A.
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