Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1991-08-23
1993-10-26
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
360106, 360126, 360112, 360 9801, G11B 1702, G11B 531, G11B 537, G11B 555
Patent
active
052571513
ABSTRACT:
A disk/file for magnetic recording having overall dimensions of one quarter inch thick by about the size of a standard credit card with pin connectors for connecting into a receptacle such as for pc boards. The file features a multi pole rotor mounted on the rims of two disk and a stator divided external to and coplanar with the disks. An actuator features a "wobble" disk rolling around the inside of a nest of electromagnets and turning a small increment with such excursion around the nest thereby turning the shaft of the head support to actuate the head from track to track. The head support arm includes two sections hinged together and engaged with a third link that orients the head to eliminate head skew. A magnet withdraws the head devices from the disk surface to avoid sticktion when the disks are stationary. The head devices feature thin film cores that are oriented flat to the surface of the disk.
REFERENCES:
patent: 4686592 (1987-08-01), Carroll et al.
Cooper William L.
Elliott Timothy J.
Herman Robert W.
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