The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 13, 1985
Filed:
Aug. 13, 1982
Liberto Massarelli, Vasto, IT;
Luigi Capriotti, Porto d'Ascoli, IT;
Abstract
A turntable platter for record players, consisting of two layers one of glass and one of plastic, lying one on top of the other. The plastic layer can be of a thermoplastic and/or thermosetting material such as polycarbonate, polyacrylic, polystyrene or the like. The glass guarantees flatness, rigidity and pleasant appearance of the platter, such features not always being obtainable from the already known metal platters, while the plastic, guarantees light weight associated with such material. The glass-plastic combination in the turntable platter represents considerable progress in the particular industrial field as it guarantees the absorption of spurious vibrations, and secondly, optimum sound reproduction quality. The glass and plastic layers can be joined together by means of adhesive or pushed together and can also be of different sizes and shapes. The turntable platter can be provided with an upper layer, preferably less than one micron thick, of conductive material.