Hard disk drive with erasing apparatus

Details Hard disk drive with erasing apparatus Hard disk drive with erasing apparatus

1987-02-09

1987-10-27

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Erase

360103, 360 99, G11B 5024

Patent

active

047033797

ABSTRACT:
In a hard disk drive with a closed housing (10) enclosing a magnetic disk pack (24,26) and a carrier arrangement (32) for magnetic heads (36), permanent-magnet or electromagnetic erase heads (44,62) are arranged in this which can be operated independently of the magnetic heads (36).

REFERENCES:
patent: 2766328 (1956-10-01), Handschin et al.
patent: 3214175 (1965-10-01), Nakamatsu
patent: 3710357 (1973-01-01), Buslik
patent: 3918089 (1975-11-01), Kato et al.
patent: 4063296 (1977-12-01), Fremstedal et al.
patent: 4188648 (1980-02-01), Guerini
patent: 4462055 (1984-07-01), Jackson et al.
patent: 4521819 (1985-06-01), Esling et al.

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