Erasing head

Details Erasing head Erasing head

1978-06-06

1980-05-27

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Erase

360 66, G11B 525, G11B 527, G11B 547

Patent

active

042053560

ABSTRACT:
An erasing head is improved with respect to its erasing ratio as well as its distortion ratio. The erasing head has at least two gap portions one of which is so designed as to apply a high erasing magnetic field sufficient to completely erase information recorded on the tape. The other gap portion is so designed as to apply a magnetic field just intense enough to minimize the distortion ratio.

REFERENCES:
patent: 2535712 (1950-12-01), Wolfe
patent: 2673896 (1954-03-01), Rettinger
patent: 3449529 (1969-06-01), Camras
patent: 3514851 (1970-06-01), Perkins et al.

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