Device for inspecting the surface of magnetic memory disks

Details Device for inspecting the surface of magnetic memory disks Device for inspecting the surface of magnetic memory disks

1985-12-19

1988-08-23

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Miscellaneous

360 98, G11B 5012

Patent

active

047665122

ABSTRACT:
For the inspection of magnetic memory disks (11) a viewing arrangement (17,18,19) is used which can be mounted on the head arm carrier (16) of a magnetic disk memory in place of one or more head arms. It has a bracket (19) which can be moved between the magnetic memory disks (11) and on which is provided the light admission part or optical pickup of the viewing arrangement (17,18,19). The image received by the pickup (20) is conducted to the part of the viewing arrangement (17,18,19) which is located outside of the magnetic memoryt disks (11) on the head arm carrier (16). There the disk surface can conveniently be inspected.

REFERENCES:
patent: 3413067 (1968-11-01), Froio
patent: 3734626 (1973-05-01), Roberts et al.
patent: 4004081 (1977-01-01), Zorn
patent: 4493554 (1985-01-01), Pryor et al.
patent: 4561776 (1985-12-01), Pryor
patent: 4669073 (1987-05-01), Wakabayashi et al.
Brew et al., "Disk Inspection Apparatus", IBM Tech. Disc. Bull., vol. 20, No. 5, Oct. 1977.

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