Stabilized rotation of flexible disk files

Details Stabilized rotation of flexible disk files Stabilized rotation of flexible disk files

1978-10-02

1980-06-17

Wolff, John H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360102, 360 99, 360137, G11B 1700

Patent

active

042086787

ABSTRACT:
A stack of co-rotating flexible record storage disks is stabilized by maintaining mass flow of stabilizing air within a predetermined range. In a preferred form, mass flow is maintained by sensing both barometric and thermal changes and adjusting the mass flow of the stabilizing air in accordance with such sensed parameters.

REFERENCES:
patent: 3110889 (1963-11-01), Morley et al.
patent: 3140047 (1964-07-01), Holloway
patent: 3208056 (1965-09-01), Pearson et al.
patent: 4030136 (1977-06-01), Smith et al.
I.B.M./T.D.B., vol. 20, No. 5, Oct. 1977, pp. 1891-1892, "Atmospheric Pressure Compensator for Disk Files", by Wheeler.
I.B.M./T.D.B., vol. 20, No. 3, Aug. 1977, pp. 914-915, "Disk Selector . . .", by Kleczkowski et al.
I.B.M./T.D.B., vol. 20, No. 2, Jul. 1977, pp. 506-507, "Flexible Disk Selections", by Kleczkowski et al.
I.B.M./T.D.B., vol. 19, No. 5, Oct. 1976, pp. 1882-1883, "Shrouded Flexible Disk Pack", by Talke.

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