Frusto-conical magnetic recording disc

Details Frusto-conical magnetic recording disc Frusto-conical magnetic recording disc

1978-12-13

1980-06-17

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360135, G11B 5016, G11B 582

Patent

active

042086833

ABSTRACT:
An object of the invention is to provide a flexible disc having a frusto-conical recording surface. The disc is bistable allowing access to both sides, and is well suited for data storage in computer and data processing systems. It may be used either singularly or collectively in disc packs.

REFERENCES:
patent: 3090626 (1963-05-01), Wandy
patent: 3863266 (1975-01-01), Moshino
patent: 4019204 (1977-04-01), Griffiths et al.
Wanek, "Controlled Slope Flexible Disk Pack", IBM Tech. Disc. Bull., vol. 19, No. 12, May 1977, p. 4717.
Kheczkowski et al., "Disk Selection in a Stack of Stabilized Flexible Disks", IBM Tech. Disc. Bull., vol. 20, No. 3, pp. 914-915, Aug. 1977.

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