Cartridge and flexible magnetic disk assembly

Details Cartridge and flexible magnetic disk assembly Cartridge and flexible magnetic disk assembly

1977-10-25

1979-04-10

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Record medium

In container

360 99, G11B 5016, G11B 582, G11B 362

Patent

active

041492072

ABSTRACT:
A thin flexible magnetic disk rotatably disposed in a cartridge of rigid material and protected thereby. The disk is loosely mounted on a driving hub assembly and has an arrow shaped center hole surrounding a central round hub portion of the hub assembly. A drive pin is carried by the hub assembly and extends loosely through a corresponding hole located in the disk and spaced from the center of the hub assembly and located on a radial line preferably of about 90 degrees with respect to a radial line passing through the apex of the straight hole edges forming the arrow so that the disk is automatically centered on the hub assembly due to any restraint on the disk during its rotation.

REFERENCES:
patent: 3130393 (1964-04-01), Gutterman
patent: 3156918 (1964-11-01), Cronquist et al.
patent: 3460118 (1969-08-01), Woolfolk
patent: 3529301 (1970-09-01), Hiruta
patent: 4091454 (1978-05-01), Kauffmann
IBM Tech. Disc. Bull., Nordeng, Flexible Disk Pack Assembly, vol. 18, No. L2, May, 1976, pp. 4128-4129.

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