Turntable direct-drive system

Details Turntable direct-drive system Turntable direct-drive system

1976-03-30

1978-02-07

Stephan, Steven L.

Undertaking

274 39A, 310266, G11B 1700, G11B 360, H02K 122

Patent

active

040723151

ABSTRACT:
A turntable direct-drive system in which a cylindrical rotor having an inverted U-shaped cross sectional configuration is carried by a turntable shaft, and two stator cores with windings mounted thereupon are disposed at opposite sides, respectively, of the side wall of the cylindrical rotor and spaced apart therefrom by a distance suitable to exert the driving force to the side wall of the cylindrical rotor. A turntable is supported by the turntable shaft or on the top of the cylindrical rotor directly or through a plurality of projections extended therefrom or a plurality of elastic supporting members attached thereto so that the turntable may be maintained at a level and vibrations thereof may be minimized.

REFERENCES:
patent: 1419749 (1922-06-01), Murphy
patent: 1580037 (1926-04-01), Hall
patent: 1917633 (1933-07-01), Burt
patent: 3870321 (1975-03-01), Smith et al.

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