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US 4,376,960 AGranted
Flexible disk stabilizing structure
AssigneeInternational Business Machines Corporation
InventorKenneth N. Karol
Life of this patent
Estimating the term…
Abstract
A magnetic recording device for non-contact recording on a flexible disk employs a Bernoulli plate to stabilize the rotating disk. The plate is slightly concave and has a number of small orifices therein through which air is drawn by the disk rotation to produce a thin, cushion of air between the plate and the disk.
Claims3
Apparatus for magnetically recording and reproducing electrical signals, comprising
- a flexible disk having a magnetic recording material on at least one surface thereof;
- a Bernoulli plate member positioned adjacent said disk surface having the magnetic recording material thereon;
- said plate member being concave in one direction and having a plurality of orifices therein through which air is drawn when said disk is rotating;
- said orifices being aligned radially outwardly from the center of said plate member, adjacent radial lines of said orifices being offset radially from each other,
- said plate member having a transducer opening therein for location of transducing means to magnetically cooperate with said disk in a non-contact transducing relationship.
2 more elements
Dependencies are inferred from the claim text.