Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1989-01-31
1992-01-14
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
G11B 1702
Patent
active
050815520
ABSTRACT:
A structure and organization for a magnetic disk drive provides for optimizing the volumetric storage density within a device form factor by optimizing the number of disks. The spindle and dual rotary actuators are respectively supported at each side by a pair of support plates that are separated and supported by not only the spindle and actuator shafts, but also the voice coil motor core pieces and tie plates which carry shock mounts. This head-disk assembly is shock mounted in the lower part of a two part enclosure wherein the enclosure parts are aligned and separated by elastomer guides and the separation covered by a compliant tape to complete the enclosure. Both actuators use a common servo surface while one actuator carries upwardly facing transducers and the other downwardly facing transducers so that each arm extending between disks mounts, but a single suspension-transducer assembly to reduce interdisk spacing. The enclosure occupies the entire vertical height of the form factor and the head-disk assembly occupies the full available height of the enclosure interior to accommodate as many disks as possible. Electrical components are excluded from the axial sides of the stack of disks.
REFERENCES:
patent: 4491888 (1985-01-01), Brown et al.
patent: 4577240 (1986-03-01), Hedberg et al.
patent: 4714972 (1987-12-01), Biermeier et al.
patent: 4835637 (1989-05-01), Mach et al.
Glaser Thomas W.
Greenberg Richard
Misso Nigel F.
Schopp Robert E.
International Business Machines - Corporation
Lahtinen Robert W.
Tupper Robert S.
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