Ribbed cleaning apparatus for disk cartridges

Details Ribbed cleaning apparatus for disk cartridges Ribbed cleaning apparatus for disk cartridges

1990-08-13

1992-01-21

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record medium

In container

3601303, G11B 2303

Patent

active

050832310

ABSTRACT:
A disk cartridge including a rotatable disk, a cartridge case for housing the disk having upper and lower shells, and a cleaning wiper disposed between each surface of the disk and the respective upper and lower shells is disclosed. A lifter is mounted on the lower shell for biasing the wipers into contact with the disk. Ribs are mounted on the upper shell opposite the lifter. The ribs are substantially parallel to the disk radius and substantially perpendicular to the direction of rotation of the disk and extend for substantially the entire radius of the disk. The ribs maintain a minimum level of wiping pressure on the disk along the entire radius of the disk. 3:1.9.

REFERENCES:
patent: 4620247 (1986-10-01), Papciak et al.
patent: 4626949 (1986-12-01), Brock et al.
patent: 4677517 (1987-06-01), Gelardi et al.
patent: 4814926 (1989-03-01), Gulbrandsen
patent: 4970618 (1990-11-01), Kato et al.
patent: 4979065 (1990-12-01), Ikebe et al.

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