Magnetic disc cartridge

Details Magnetic disc cartridge Magnetic disc cartridge

1976-12-15

1978-08-08

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record medium

In container

G11B 2302

Patent

active

041060660

ABSTRACT:
A magnetic disc cartridge comprising: a support disc which carries at least one magnetic disc on its circumference; a magnetic disc housing case having an opening through which at least one magnetic head enters; a closure mechanism for covering said opening; and a holding mechanism which holds said support disc down on a base member of said housing case. The support disc has at least one hole in its hub through which circulating clean air flows in. A cover for said hole is arranged cooperating with said closure mechanism so that said cover opens when said closure mechanism opens and closes when said closure mechanism closes.

REFERENCES:
patent: 3917068 (1975-11-01), Cheney
"Record Disc Assemblies", Griffiths et al., IBM Tech. Disc. Bull., vol. 16, No. 12, May 1974, p. 3838.

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