Electro-magnetic shield structure for shielding a servo magnetic

Details Electro-magnetic shield structure for shielding a servo magnetic Electro-magnetic shield structure for shielding a servo magnetic

1988-03-15

1990-06-19

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Head accessory

360 9801, 360106, G11B 5115, G11B 555, G11B 1702

Patent

active

049358308

ABSTRACT:
A magnetic disk storage device having a magnetic shield for shielding a magnetic servo-head from noise generated by an adjacent data-head during a write operation when both magnetic heads are arranged back-to-back in a space between two magnetic disks stacked co-axially. The shield plate is secured to an inner surface of a base portion of a housing of the device, thus avoiding an increase in the weight and moment of inertia of moving members of a head positioner.

REFERENCES:
patent: 4346416 (1982-08-01), Riggle et al.
patent: 4402025 (1983-08-01), Anderson et al.
patent: 4571649 (1986-02-01), Goss
Dickie et al., Magnetic Shield Assembly, IBM Tech. Disc. Bull., vol. 19, No. 4, Sep., 1976, p. 1439.
Elliott et al., Magnetic Shield for Disk File, IBM Tech. Disc. Bull., vol. 19, No. 4, Sep., 1976, p. 1437.

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