Multiple-transducer/actuator array

Details Multiple-transducer/actuator array Multiple-transducer/actuator array

1979-12-26

1982-03-02

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

310 13, 360 98, G11B 555, G11B 2108, H02K 4100

Patent

active

043181457

ABSTRACT:
In combination with disk drive apparatus, a multi-gap flat-coil linear actuator is disclosed, being arranged to carry N like transducer means and to reciprocate these, together, into associated gaps between a respective stacked disks, the actuator being comprised of flat-coil turns on a planar substrate which is arranged to be driven vertically, up and down the stack; accessing different gap-sets, being driven between opposing magnet pole pieces, whereby when the coil turns are energized, the substrate may be caused to vertically position the multiple transducer arms.

REFERENCES:
patent: 3314057 (1967-04-01), Mogtader
patent: 4024552 (1977-05-01), Kondo
patent: 4208685 (1980-06-01), Matla et al.

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