Stabilizer device having an edge configuration for stabilizing t

Details Stabilizer device having an edge configuration for stabilizing t Stabilizer device having an edge configuration for stabilizing t

1987-02-26

1988-12-20

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 560

Patent

active

047928743

ABSTRACT:
A stabilizer is shown with a special leading edge for enhancing the magnetic interface between a magnetic head and a rapidly moving pliable magnetic disk. The stabilizer includes a stabilizing block with an opening through which the head protrudes for engagement with the disk. A flat, circumferential air bearing surface surrounds the opening adjacent the disk for generating coupling forces that deform the disk out of its nominal plane and into intimate contact with a transducing gap on the head. The leading edge of the stabilizer has a generally arcuate surface that abruptly meets the air bearing surface at a non-tangential transition. The transition appears to the disk as a fulcrum, imparting a torque to the disk that contributes to the coupling forces and ensures "capture", that is, interface, even with disks having troublesome irregularities such as warps.

REFERENCES:
patent: 3821813 (1974-06-01), Freeman
patent: 4003091 (1977-01-01), Wright
patent: 4151573 (1979-04-01), Tandon
patent: 4376960 (1983-03-01), Karol
patent: 4379315 (1983-04-01), Schuler
patent: 4396965 (1983-08-01), DeMoss
patent: 4414592 (1983-11-01), Losee
patent: 4578727 (1986-03-01), Hills
patent: 4620250 (1986-10-01), Hills
IBM T.D.B., vol. 27, No. 2, Jul. 1984; A. Cox; Head Assembly for Flexible Disk Applications, pp. 1294-1295.
IBM TDB, vol. 19, #5, Oct. 1976; p. 1885; `Stabilized Wasp-Waist Head`; Nelson, Talke & Tseng.

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