Ceramic-ferrite head

Details Ceramic-ferrite head Ceramic-ferrite head

1981-09-28

1984-01-10

Kilgore, Robert Martin

Dynamic magnetic information storage or retrieval

Head

Head accessory

360118, 360122, G11B 510, G11B 511, G11B 512, G11B 522

Patent

active

044255942

ABSTRACT:
A ceramic-ferrite head for use with a flexible data-storage disk comprises a cylindrical body composed of magnetically soft ferrite and formed internally with a cup-shaped recess open at one end and a boss provided with a window at the opposite end. The core assembly is received in this boss and is bonded therein with a glass-resin composition while the coils of the assembly are found in the recess and are connected, together with the ground lead through a cap of the same material as the body, to a printed circuit board on the opposite side of this cap. The recess is lined with a conductive coating which is likewise grounded to the printed circuit board by the ground conductor.

REFERENCES:
patent: 3964103 (1976-06-01), Thompson
patent: 3975771 (1976-08-01), Lazzari
patent: 4176384 (1979-11-01), Yang
patent: 4291354 (1981-09-01), Chase
patent: 4293883 (1981-10-01), Cox
patent: 4356524 (1982-10-01), Watanabe

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