Plural magnetic disk assembly

Details Plural magnetic disk assembly Plural magnetic disk assembly

1986-04-21

1988-05-10

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record medium

In container

360 99, 360102, G11B 2303, G11B 1564

Patent

active

047439890

ABSTRACT:
A device and process for stabilizing two coaxially joined flexible magnetic disks is disclosed. Two or more flexible magnetic disks are coaxially joined by a coaxially located spacer. One of the disks is juxtaposed to and rotated against a flat stable Bernoulli surface. A second disk spaced by the spacer from the first disk contains centrally located perforations into which air can flow. When the disks are rotated at high speed air flows into the perforations and radially out from between the disks, thus forming an air cushion or air bearing between the disks. The apparatus and process thus provides two floppy disks stabilized by a single Bernoulli surface.

REFERENCES:
patent: 4074330 (1978-02-01), Norton
patent: 4159494 (1979-06-01), Evans
patent: 4229774 (1980-10-01), Janssen
patent: 4296448 (1981-10-01), Garcia
patent: 4447899 (1984-05-01), Geyer
IBM T.D.B., vol. 20, #3, Aug. 1977; J. R. Cope; Bernoulli Disk Decoupler & Stabilizer, pp. 916-917.
IBM T.D.B., vol. 19, #9, Feb. 1977; D. H. McMurtry; Double Bernoulli Disk Conf.; pp. 3573-3574.

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