In one click, you will find all the information you are interested in about YELLOW GOLD JEWELRY ALLOY PATENT. We have collected the most complete and diverse information for you.
https://patents.google.com/patent/US4557895A/en
A yellow gold alloy which resembles 10 karat gold in appearance and physical properties but has a gold content substantially less than 10 karat gold. The alloy consists essentially of 11% to 16% by weight gold, 28% to 34% by weight silver, 30% to 38% by weight copper, 8% to 12% by weight palladium, 7% to 10% by weight zinc, 0.2% to 0.4% silicon, and about 0.02% boron, and is particularly …Cited by: 8
https://patents.google.com/patent/US5340529A/en
A gold based jewelry alloy is disclosed of preferably the 10 to 18 karat range containing primarily gold, copper, zinc and silver. This alloy is formulated to create a unique color, a mid-range hue with a fresh, soft appearance that is very complimenting to a variety of skin tones and gem stones. Aside from characteristics of appearance, the alloy disclosed has an increased hardness over ...Cited by: 23
https://www.freepatentsonline.com/4446102.html
Thus having described the invention, what is claimed is: 1. A yellow gold metal alloy of less than about 6 karats having good tarnish and corrosion resistance, good workability and castability and a color, luster, shine and hue characteristic of at least 10 karat yellow gold consistinyg essentially of, by weight, about 17 to 25% gold, 10 to 27% silver, 40 to 60% copper, and 3 to 12% zinc.Cited by: 14
https://patents.google.com/patent/WO2002018664A1/en
Novel 22k gold alloys including silver, boron, cobalt and copper. The alloys meet modern jewelry fabrication techniques requirements and exhibit pleasing yellow color. They are stable under normal use and do not appreciably tarnish. They also have substantially no discoloring effect on the skin. These formulations possess work hardening properties consistent with gold alloys of lower karat ...Cited by: 4
https://www.freepatentsonline.com/4557895.html
This invention relates to a yellow gold alloy which resembles 10 karat gold in appearance, properties and characteristics, but which has a much lower gold content. Gold alloys, particularly 14 karat gold (58.3% by weight gold) and 10 karat gold (41.6% by weight gold) are widely used in the manufacture of rings and other articles of jewelry.Cited by: 8
https://www.freepatentsonline.com/5384089.html
The disclosure relates to yellow karat gold metal alloys particularly suited for the casting of jewelry articles such as rings, bracelets, earrings, and the like. The alloys include varying amounts of germanium up to about one percent by weight of the total volume of the alloy which serves as an oxygen scavenger, and which may be recycled along ...
https://patents.google.com/patent/US3925066A/en
A tarnish resistant Au/Ag alloy of low gold content exhibiting properties desired in jewelry manufacture consisting essentially of about 25 to 30 percent, by weight, gold, about 45 to 57 percent, by weight, silver, about 18 to 25 percent, by weight, of a metal selected from the group consisting of copper, nickel and mixtures thereof and 0 to about 5 percent by weight zinc.
https://www.callagold.com/education/gold-jewelry-alloys/
See the blog about rhodium plating. White gold (and yellow gold) is measured in karats. There are 24 karats in 100% pure gold. This is too soft for jewelry making. There is 58% pure gold by weight in 14kt gold. The balance of metal is the alloy mix chosen to be combined with the pure gold. In metals purity is measured and marked by karat.
https://patents.google.com/patent/DE202012003711U1/en
Platinum alloy containing 93 to 97 wt .-% platinum and gold, characterized in that the gold content is between 1 to 4 wt .-%, and that the alloy further contains 1 to 4 wt .-% indium, the Add 100% by weight of the platinum, indium and gold, apart from impurities.
https://www.jckonline.com/editorial-article/one-karat-gold-appears-ftc/
Nov 19, 2019 · The jewelry was created using a new patent-pending gold alloy. It is then plated with a layer of 14k gold to match the color of traditional gold jewelry. Its retail price is 80%–90% less than comparable 14k product, the company says.
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