Fixed disc head actuator assembly

Details Fixed disc head actuator assembly Fixed disc head actuator assembly

1979-06-04

1981-11-10

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 75, G11B 2102

Patent

active

043001769

ABSTRACT:
An actuator assembly for magnetic heads used with fixed magnetic discs. The heads are supported from one end of arms in a support assembly which is pivoted at the other end. Drive forces are applied directly to each of the arms through the support assembly at the center of percussion between the pivot and the heads. Drive forces are generated by a drive assembly including a coil and permanent magnets.

REFERENCES:
patent: 3735163 (1973-05-01), Dijkstra et al.
patent: 3849800 (1974-11-01), Cuzner
patent: 4150407 (1979-04-01), Dijkstra
Patent Associated Literature-IBM Journal of Research and Development, vol. 20, No. 4, pp. 389-397, Jul. 1976, "Design of a Swinging Arm Actuator". . . by Heath.
"Computer Design", Feb. 1979, Design Notes, pp. 116-120, Disc File Actuator Design . . . by Lissner et al.
IBM/TDB, vol. 17, No. 10, Mar. 1975, "Desk File Actuator" by Lissner et al., pp. 3016-3018.
IBM/TDB, vol. 19, No. 4, Sep. 1976, "Actuator Retraction Device" by Hear, p. 1440.

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