Dynamic magnetic information storage or retrieval – Head – Head accessory
Patent
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
Packard Alden H.
Purdy Richard T.
Kilgore Robert Martin
Perfect Data Corporation
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