Linear actuator with staggered flat coils

Details Linear actuator with staggered flat coils Linear actuator with staggered flat coils

1979-12-26

1982-02-02

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

310 13, 360104, 360 78, 360 97, G11B 2102

Patent

active

043142958

ABSTRACT:
In combination with disk drive apparatus, an array of flat-coil actuator's is disclosed, with each actuator adapted to translate and position transducer means between a respective pair of stacked disk recording surfaces; each actuator comprising a number of flat-coil turns on at least one side of a planar substrate, this substrate being arranged to run between opposing magnet pole pieces along a path defined by a pair of opposed runways, with these coils being disposed in "overlapping" relation relative to one another and to respective pole pieces --thus when selected coil turns are energized the substrate may be controllably translated and positioned.

REFERENCES:
patent: 3619673 (1971-11-01), Helms
patent: 3735163 (1973-05-01), Dijkstra
patent: 4001889 (1977-01-01), Schneider
patent: 4006372 (1977-02-01), Brown, Jr. et al.
patent: 4075517 (1978-02-01), Adler
patent: 4145725 (1979-03-01), Wallis
patent: 4150407 (1979-04-01), Dijkstra
patent: 4196456 (1980-04-01), Manzke et al.
"Computer Design" Feb. 1979, pp. 116-120, Disk File Actuator Design . . . , by Lissner et al.

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