Dynamic magnetic information storage or retrieval – Record medium – Disk
Patent
1976-06-01
1978-01-31
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record medium
Disk
360 17, G11B 582, G11B 586
Patent
active
040718697
ABSTRACT:
Method and apparatus for assembling a flexible record disk member to a non-flexible center support ring and substantially simultaneously recording servo signals on the flexible disks concentrically with respect to the support ring whereby the recorded servo signals are precisely coaxial to the non-flexible ring support.
REFERENCES:
patent: 3303485 (1967-02-01), Lee
patent: 3761333 (1973-09-01), Kleinbeck et al.
patent: 3891796 (1975-06-01), Takahara et al.
patent: 3898814 (1975-08-01), Chou et al.
patent: 3931645 (1976-01-01), Dodd et al.
patent: 3940793 (1976-02-01), Bleiman
Kendall et al.; Application of Position Sense Indicia to Flexible Disks; IBM Tech. Disc. Bull., vol. 19, No. 2, 7/76, p. 586.
Feierabend Louis Bock
Proper David Staples
International Business Machines - Corporation
Somermeyer Herbert F.
Tupper Robert S.
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