Disk cartridge with improved disk cleaning

Details Disk cartridge with improved disk cleaning Disk cartridge with improved disk cleaning

1988-10-05

1991-01-15

Severin, David J.

Dynamic magnetic information storage or retrieval

Record medium

In container

G11B 23033

Patent

active

049857991

ABSTRACT:
A disk cartridge which comprises a cartridge case receiving a magnetic disk and a cleaning sheet fixed by spot or line welding to the inner surfaces of the cartridge case such as to contact both sides of the magnetic disk; the density of the welding spots or lines is reduced or eliminated in the regions of the cleaning sheet which undergo the most pressure exerted by pressing pads on the recording/reproducing apparatus for the disk cartridge.

REFERENCES:
patent: 4391669 (1983-07-01), Yamakawa et al.
patent: 4392170 (1983-07-01), Okada
patent: 4655348 (1987-04-01), Takagi
patent: 4755901 (1988-07-01), Fehrenbach et al.
patent: 4796137 (1989-01-01), Gruehn et al.
patent: 4803584 (1989-02-01), Doi et al.

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