Stacked flexible record disk storage apparatus having enhanced d

Details Stacked flexible record disk storage apparatus having enhanced d Stacked flexible record disk storage apparatus having enhanced d

1974-06-19

1976-02-24

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 86, 360 98, 360105, 360135, G11B 582, G11B 2504, G11B 554

Patent

active

039407942

ABSTRACT:
A signal storage apparatus employs a stack of circular record disks accessible by axially separating segments of selected disks in the stack. One disk in a stack of coaxial rotatable circular compliant record disks is accessed with a minimum energy imparted to such disks by a chord roll disk separator. In a preferred form, the chord roll disk separator induces a primary bending mode to some of the disks being axially separated. In another aspect of the disclosure, a signal transducer is mounted integrally with the disk separator. With such mounting, primary, secondary, or higher order bending modes may be successfully employed. Full chordal and partial chordal axial disk separations are described. Arcuate and radially directed separation techniques may be employed. A unique axial stacking arrangement for compliant record disks is also described.

REFERENCES:
patent: 3317903 (1967-05-01), Eckert et al.
patent: 3509553 (1970-04-01), Krijnen
patent: 3703713 (1972-11-01), Pohm et al.
patent: 3731292 (1973-05-01), Kelly
patent: 3838462 (1974-09-01), Barbeau et al.
patent: 3852820 (1974-12-01), Barbeau et al.

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