Hydrodynamic bearing head providing constant spacing

Details Hydrodynamic bearing head providing constant spacing Hydrodynamic bearing head providing constant spacing

1973-10-01

1976-03-30

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 99, G11B 560, G11B 1732, G11B 2116, G11B 5016

Patent

active

039478882

ABSTRACT:
A player for video disc includes a vacuum reading head to "read" recorded information from a thin, flexible video disc. A rotating turntable provides a fluid cushion bearing to support the disc and the vacuum associated with the transducing head assembly "draws" the disc toward the head and maintains an optimum head-to-disc spacing.

REFERENCES:
patent: 2905768 (1959-09-01), Cronquist
patent: 3178719 (1965-04-01), Shapiro
patent: 3327916 (1967-06-01), Weidenhammer et al.

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