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US 5,188,679 AGranted
Metal compression-spring gemstone mountings
OwnerSteven D. Kretchmerinventor
Life of this patent
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Abstract
A precious metal alloy compression-spring gemstone mounting is made by casting or working a quantity of alloy to form a gemstone mounting in a desired configuration, followed by annealing and heat-treating the mounting to increase its yield strength. A stone is then placed in the mounting and is retained therein by compressive spring force.
Claims10
A method for forming compression spring a mounting structure, which comprises:
- forming a quantity of heat-treatable metal into a gemstone mounting having first and second ends, with the first end being spaced from the second end for retaining one or more gemstones therebetween;
- annealing the gemstone mounting;
- heat-treating the formed mounting to increase the yield strength thereof;
- and
- cooling the heat-treated mounting to obtain a compression spring gemstone mounting capable of securely retaining one or more gemstones therein.
2 more elements
Dependencies are inferred from the claim text.