Miniaturized disk file pluggable into a card terminal

Details Miniaturized disk file pluggable into a card terminal Miniaturized disk file pluggable into a card terminal

1991-06-13

1993-10-05

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 9701, 360 9702, 360 9703, 360 9908, 360104, 360105, 360106, 360112, 360126, 360903, G11B 1702, G11B 537, G11B 554, G11B 555

Patent

active

052510824

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 rotor mounted on the rims of two disk and a stator 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 each 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: 4631611 (1986-12-01), Schneider
patent: 4686592 (1987-08-01), Carroll et al.
patent: 4965686 (1990-10-01), Young et al.
patent: 5050144 (1991-09-01), Henderson et al.
patent: 5065262 (1991-11-01), Blackborow et al.
patent: 5093753 (1992-03-01), Friederich et al.
patent: 5124867 (1992-06-01), Kitahori et al.
patent: 5166849 (1992-11-01), Fedeli

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