Compound read/write element for rigid magnetic disk files

Details Compound read/write element for rigid magnetic disk files Compound read/write element for rigid magnetic disk files

1987-06-05

1989-04-25

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Plural gaps

360123, 360126, 360127, G11B 527, G11B 518

Patent

active

048253189

ABSTRACT:
An inductive vertical or horizontal read/write head element for use in rigid magnetic disk files. The element is comprised of at least three spaced apart poles, each of said poles having a flux path extending from said head means, magnetically connecting said path, and at least two electrical coils positioned about said flux paths for inducing a flux in said flux paths. The element also has tracking capabilities when the first and last poles are offset from the other poles, which are essentially aligned.

REFERENCES:
patent: 3012104 (1961-12-01), Kleis
patent: 4130242 (1978-12-01), Mannion
patent: 4404609 (1983-09-01), Jones, Jr.
patent: 4725909 (1988-02-01), Kawai
IBM/TDB "Two-Gap Read-Write Head" by Rogers et al vol. 12, No. 7, Dec. 1969, p. 1118.
IBM/TDB "Combined Long. & Vert. Magnetic Recording" by Hoagland vol. 20, No. 8, Jan. 1978, pp. 3311-3312.

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