Palladium white gold alloy ring settings and method of making same
AssigneeHoover & Strong, Inc.
InventorsFrederick W. Klotz, Torrance D. Hoover
Life of this patent
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Abstract
A ring setting is made from a nickel-free palladium white gold alloy that contains 7-12% by weight palladium; 50-65% by weight gold; 25-32% by weight silver; and 1-5% by weight zinc. Such ring settings are resistant to chemical or stress corrosion cracking.
Claims16
A ring setting made from a nickel-free palladium white gold alloy consisting of 7-10.5% by weight palladium;
- 50-65% by weight gold;
- 25-32% by weight silver;
- and 1-5% by weight zinc.
A method of making a ring setting comprising forming the ring setting from a nickel-free palladium white gold alloy that consists of 7-10.5% by weight palladium;
- 50-65% by weight gold;
- 25-32% by weight silver;
- and 1-5% by weight zinc.
A ring setting made from a nickel-free palladium white gold allow, said ring setting including prongs consisting essentially of 7-12% by weight palladium;
- 50-65% by weight gold;
- 25-32% by weight silver;
- and 1-5% by weight zinc.
A method of making a ring setting comprising forming prongs of the ring setting from a nickel-free palladium white gold alloy that consists essentially of 7-12% by weight palladium;
- 50-65% by weight gold;
- 25-32% by weight silver;
- and 1-5% by weight zinc.
Dependencies are inferred from the claim text.