Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1984-11-29
1987-04-21
Hecker, Stuart N.
Dynamic magnetic information storage or retrieval
Record medium
In container
360 99, 360102, G11B 2303, G11B 1564, G11B 1732
Patent
active
046601171
ABSTRACT:
A disk cartridge file employs a cartridge which is a rigid enclosure containing a flexible information storage disk mounted on a drive hub. One wall of the cartridge comprises a central hub drive aperture and an arcuate radially extending access slot for a read/write transducer. In operation, the disk flies over the inner surface of the apertured wall on an air bearing. This surface is planar over a major portion including the access slot but has a smoothly contoured raised land bordering the slot on the downstream side thereof. When employed in combination with a transducer of the ring stabilized type which projects through the slot and penetrates into the normal path of the medium, the transducer is coupled with the medium in a stable closely spaced air bearing relationship. The raised land extends the range of penetration over which the transducer is coupled, particularly at the outer diameter of the disk.
REFERENCES:
patent: 3932710 (1976-01-01), Dickopp et al.
patent: 4074330 (1978-02-01), Norton et al.
patent: 4167269 (1979-09-01), Hatchett et al.
patent: 4296448 (1981-10-01), Garcia et al.
patent: 4375656 (1983-03-01), Radman et al.
Carey Paul D.
Cutts Stanley J.
Evans David A.
Heath John S.
White David E.
Hecker Stuart N.
International Business Machines - Corporation
Thomson James M.
Urcia Benjamin E.
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