High efficiency magnetic erase head

Details High efficiency magnetic erase head High efficiency magnetic erase head

1984-06-15

1987-07-28

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Gap spacer

360118, 360125, G11B 523, G11B 5325

Patent

active

046835091

ABSTRACT:
In a magnetic transducer of the type including a pair of opposed, generally C-shaped pole pieces positioned in facing relationship with a gap between first ends of the pole pieces, each pole piece being formed from a ferrite material and having a coil would therearound, and at least one length of conductive gap material positioned within the gap so as to shunt the magnetic lines of flux flowing through the pole pieces into a magnetic recording medium which engages the pole pieces in the area of the gap, there is disclosed an improved erase head wherein an elongate bar made from a conductive material is positioned between the pole pieces, in the cavity therebetween, parallel thereto and to the gap and spaced from the gap.

REFERENCES:
patent: 3102170 (1983-08-01), Koning
patent: 3681526 (1972-08-01), Camras
patent: 3827083 (1974-07-01), Hosaka et al.
patent: 4400753 (1983-08-01), Chabrolle

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