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Structured Magnetic Storage Disk Disclosure Number: IPCOM000062862D
Original Publication Date: 1985-Jan-01
Included in the Prior Art Database: 2005-Feb-18

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Hinkel, H Kieven, G Mehrens, J [+details]


A magnetic storage disk 1 comprises a number of grooves 2 of very small cross-section which are of a spiral form and arranged and designed in such a manner (preferably circles) that the angle a between grooves 2 and the direction of motion 3 of disk 1 decreases from the inner to the outer diameter. Due to the grooves, the magnetic heads supported in a "flying" mode on the surface of the magnetic storage disk effect that the tendency of the lube to migrate to the periphery owing to the centrifugal force is balanced by the "pumping effect" produced inside the grooves. It is thus possible to prevent lube migration toward the periphery of the disk.