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US 6,274,250 B1Granted
Process for manufacture of jewelry and jewelry made thereby
AssigneeCento Group S.p.A.
InventorUrbano Terziani
Life of this patent
Estimating the term…
Abstract
Ornamental jewelry is made from a composite wire for manufacturing semifinished products to be subjected to an emptying process. The wire comprises a support core (1) of a nonprecious metal that is removable by chemical or electrochemical means as well as a plurality of sections (3,4,5) of precious metal wherein at least a portion of each of said sections is radially engaged in the core.
Claims6
An ornamental piece of jewelry having a substantially annular form made from a composite wire,
- said composite wire comprising an elongate support core made of a non-precious metal that, in said ornamental piece of jewelry, has been removed by chemical electrochemical action;
- and a plurality of elongate sections of precious metal, of which at least one portion of each is, prior to the removal of the support core, radially engaged in said core;
- said ornamental piece of jewelry comprising a plurality of substantially laminar or wire elements extending along an axis of circumferential symmetry and at least one disc member, to opposite faces of which the ends of said plurality of laminar or wire elements are connected.
Dependencies are inferred from the claim text.