Narrow contour head assembly

Details Narrow contour head assembly Narrow contour head assembly

1987-10-08

1989-02-28

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Head surface structure

360121, G11B 5187

Patent

active

048091103

ABSTRACT:
A self-cleaning head assembly characterized by one or more raised head islands with convex top surfaces and sloped sides, and designed to be used with a recording medium, such as a magnetic tape, which wraps each island. The machined radius of curvature of the top surface of the head island is not less than half the natural curvature of the tape, and the running radius of the head is approximately equal to the natural curvature of the medium. A steep angle of approach between tape and head provides cleaning action, while the small top surface reduces errors due to lift-off and provides superior magnetic contact.

REFERENCES:
patent: 3573769 (1971-04-01), Flora
patent: 3806902 (1974-04-01), Drees et al.
patent: 3947887 (1976-03-01), Platter
patent: 4616282 (1986-10-01), Sastra
Legios, "Magnetic Head", IBM-TDB, Dec. 1980, vol. 23, No. 7A, pp. 2845-2846.
Chow et al., "Bidirectional Magnetic Head", IBM-TDB, Feb. 1972, vol. 14, No. 9, 2631-2632.
Constantin, "Magnetkopfe mit hyperbolischem Spiegelanschliff", Radio Mentor Electronic, Mar. 1968, vol. 34, pp. 158-159.
Bullock et al., "Self-Cleaning Cleaner Block for Cleaning", Flexible Media, Jan. 1976, vol. 18, No. 8, pp. 2419-2420.

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