Turntable assembly for phonograph records

Details Turntable assembly for phonograph records Turntable assembly for phonograph records

1975-04-11

1978-03-21

Aegerter, Richard E.

Undertaking

248350, 248358R, 206307, 206521, G11B 360, F16F 1504

Patent

active

040799468

ABSTRACT:
A phonograph record turntable assembly comprises a rotatable turntable having a rubber or other elastically flexible sheet overlying a substantial portion of its upper surface and secured thereto at least along an edge or edges of the sheet for defining at least one sealed interior space which contains a fluid material, preferably in the form of a viscous liquid, so as to provide a cushioned, vibration-damping record supporting surface which conforms to the shape of a warped or otherwise distorted phonograph record placed thereon. In order to avoid the accumulation of the liquid at any one portion of the interior space when the turntable is not horizontally disposed, such interior space may be divided into a plurality of liquid-containing compartments which are isolated from each other, as by partitions therebetween, and/or each interior space or compartment may further contain absorbent material which takes up the viscous liquid. The vibration-damping properties of the turntable assembly may be enhanced by providing solid particles which float in the viscous liquid.

REFERENCES:
patent: 1163566 (1915-12-01), Scotford
patent: 1786445 (1930-12-01), Naylor
patent: 3142599 (1964-07-01), Chavannes
patent: 3245177 (1966-04-01), Chen
patent: 3462027 (1969-08-01), Puckhaber
patent: 3574379 (1971-04-01), Jordan
patent: 3679159 (1972-07-01), Bach et al
patent: 3747914 (1973-07-01), Thrasher
patent: 3787908 (1974-01-01), Beck et al.
patent: 3810265 (1974-05-01), McGrew
patent: 3820162 (1974-06-01), McGrew

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