Magnetic disk drive with brittle disks

Details Magnetic disk drive with brittle disks Magnetic disk drive with brittle disks

1988-03-31

1990-07-31

Severin, David J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 9808, G11B 5012

Patent

active

049454323

ABSTRACT:
A magnetic disk drive of the Winchester type has magnetic disks layered around the external peripheral surface of a spindle and separated mutually from one another by spacers. The substrate of the magnetic disks are made of non-metallic materials such as glass or ceramics but do not break easily by the motion of the spindle or the change in temperature because either the adhesive used to form a unistructural assembly of the magnetic disks and the spacers or elastic members inserted in annular indentations formed in the spacers serve as a buffer when the magnetic disks and the spacers are compressed together.

REFERENCES:
patent: 3931645 (1976-01-01), Dodd et al.
patent: 4152487 (1979-05-01), Yamagisawa
patent: 4738885 (1988-04-01), Matsumoto
patent: 4775906 (1988-10-01), Suzuki et al.
patent: 4777549 (1988-10-01), Dushkes et al.

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