Thin walled attached silver filled gold jewelry
AssigneeJewelmatic Inc.
InventorRobert Grosz
Life of this patent
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Abstract
A silver filled gold jewelry wire item includes an inner precious metal core, such as silver, and an outer gold layer. The outer gold layer has a predetermined thickness of from about 0.0001 inch to about 0.002 inch, preferably no more than 0.001 inch thick, which is much thinner than durable hollow wires of at least 0.004 inch in thickness or greater. A forming process draws a gold sheet strip into an open channel shaped member into which a solid silver core is placed at ambient temperatures. The open channel shaped member is closed by further rollers at ambient temperatures and welding of a seam when closed about the solid core. The resultant solid tubular gold jewelry wire item resists damage from diamond cutting knives, and can be used to create jewelry rope chains, earrings and bangles.
Claims32
A solid tubular gold jewelry wire item comprising a longitudinally extending outer layer of gold and a longitudinally extending inner core of a precious metal, wherein said jewelry wire item has a wall thickness of from a minimum wall thickness of about 0.0001 inch to a maximum wall thickness of about 0.002 inch in thickness.
A solid tubular gold jewelry wire item having an outer precious metal layer with a minimum wall thickness of from 0.0001 inch to a maximum wall thickness of about 0.002 inch thickness, and an inner solid precious metal rod core, produced by the process of:
- a) feeding at ambient temperature a solid precious metal rod core into an open longitudinally extending precious metal outer tube;
- b) closing said open longitudinally extending precious metal tube;
- c) feeding said open longitudinally extending precious metal tube having said solid precious metal rod core through a wire drawing die at ambient temperature;
- d) reducing its thickness and pressure;
- e) taking said precious metal core to said precious metal tube;
- and,
- thereby creating a solid wire comprised of said outer precious metal layer in a secure adhesive contact with said precious metal rod core.
A solid tubular gold jewelry wire item comprising a solid longitudinally extended outer layer of a precious metal and a solid longitudinally extended inner core of a soft precious metal soldered to the outer layer, wherein said jewelry wire item has a wall thickness of a minimum wall thickness of from about 0.0001 inch to a maximum wall thickness of no greater than 0.002 inch in thickness.
A solid gold jewelry item comprising an outer layer of gold and a solid inner layer of a soft precious metal joined to said outer layer, wherein said gold jewelry item includes said outer layer of gold with a wall thickness of from a minimum wall thickness of about 0.0001 inch to no greater than a maximum wall thickness of about 0.002 inch.
Dependencies are inferred from the claim text.