Reduced friction disc cartridge shutter sirfaces

Details Reduced friction disc cartridge shutter sirfaces Reduced friction disc cartridge shutter sirfaces

1990-10-30

1992-11-03

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record medium

In container

G11B 2303

Patent

active

051610809

ABSTRACT:
Projections and recesses or the like are formed or an adhesive is coated on slide contact surfaces of a main cartridge body rotatably accommodating a disk such as a magnetic disk or an optical disk and a shutter mounted movably on the main cartridge body for opening or closing an opening formed in the main cartridge body for exposing a portion of the disk to outside to provide the slide contact surfaces with low friction to prevent wear of the shutter and/or the main cartridge body.

REFERENCES:
patent: 4698714 (1987-10-01), Sugawara et al.
patent: 4714973 (1987-12-01), Kato et al.

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