Disk cartridge shutter

Details Disk cartridge shutter Disk cartridge shutter

1991-12-18

1992-09-29

Shepperd, John W.

Dynamic information storage or retrieval

Storage medium structure

Adjuncts or adapters

360133, B11B 370, B11B 584, B11B 726, B11B 2303

Patent

active

051518945

ABSTRACT:
A disk cartridge with an integral plastic shutter for shutting/opening an aperture formed in a cartridge case rotatably accommodating a disk-shaped recording medium therein characterized in that a faceplate part of the shutter has an outer surface including a large number of ridges. The shutter of this disk cartridge has a high dimensional stability and mechanical strength.

REFERENCES:
patent: 3746607 (1973-07-01), Harmon et al.
patent: 4404162 (1983-09-01), Miki et al.
patent: 4627532 (1986-12-01), Clemens
patent: 4698714 (1987-10-01), Sugawara et al.
patent: 4816316 (1989-03-01), Robbins, III

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