Information recording apparatus with a liquid bearing

Details Information recording apparatus with a liquid bearing Information recording apparatus with a liquid bearing

1993-09-10

1994-05-31

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 3314, G11B 560

Patent

active

053174631

ABSTRACT:
An information storage apparatus is disclosed for reading and/or writing information on a rigid storage medium which includes a liquid bearing interface between the transducer and medium instead of a conventional air bearing. The liquid is a fluorocarbon which has stable, self-lubricating, viscous and high-density properties. In an exemplary embodiment of a cockpit voice recorder/flight data recorder, low-density metallic components or composite parts of the rigid magnetic disk drive assembly with essentially the same density as the liquid achieve a near zero buoyancy configuration that obviates the effects of vibration and acceleration.

REFERENCES:
patent: 3579212 (1971-05-01), Gabor
patent: 4367503 (1983-01-01), Treseder
patent: 5031059 (1991-07-01), Yamaguchi et al.

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