Cleaning disk with opaque ring

Details Cleaning disk with opaque ring Cleaning disk with opaque ring

1982-02-08

1985-02-12

Kilgore, Robert Martin

Dynamic magnetic information storage or retrieval

Head

Head accessory

360 99, 360133, 360137, G11B 541, G11B 358, G11B 2350

Patent

active

044995164

ABSTRACT:
A cleaning disk made of a thin fibrous material is provided with an opaque ring so that the cleaning disk will look like magnetic media to the sensors of a flexible disk system. The opaque ring may be in the form of a separate plastic ring which is bonded to the cleaning disk and extends to the center opening of the disk. Such a structure provides the requisite opaque area as well as providing reinforcement to the central area of the cleaning disk.

REFERENCES:
patent: 3596006 (1971-07-01), Lahon
patent: 3614453 (1971-10-01), Johnson
patent: 4065798 (1977-12-01), Sugisaki
patent: 4106067 (1978-08-01), Masuyama
patent: 4180840 (1979-12-01), Allan
patent: 4374404 (1983-02-01), Davis
patent: 4375658 (1983-03-01), Martinelli

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