Magnetic disc memory unit

Details Magnetic disc memory unit Magnetic disc memory unit

1987-09-14

1988-12-13

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 75, 360105, 360106, 360 7813, G11B 1702, G11B 2122, G11B 2108

Patent

active

047915080

ABSTRACT:
A magnetic disc memory unit is presented wherein a pair of read/write heads are attached to and driven by a continuous belt driven by a stepper motor. The read/write heads move linearly, and they retract to a landing position fully off the disc when the unit is shut down. The heads carriage structure is counterbalanced by a counterbalance assembly to allow operation at all altitudes and minimize vibration and shock problems.

REFERENCES:
patent: 3713121 (1973-01-01), Fasano et al.
patent: 3772666 (1973-11-01), Scholz et al.
patent: 4323939 (1982-04-01), Iftikar et al.
patent: 4371903 (1983-02-01), Lewis
patent: 4488192 (1984-12-01), Treseder
patent: 4514837 (1985-04-01), Van Rosmalen
patent: 4519010 (1985-05-01), Elsaesser et al.
patent: 4535374 (1985-08-01), Anderson et al.
patent: 4626942 (1986-12-01), Shoji et al.
patent: 4633350 (1986-12-01), Hanson

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