Timepiece made from rose gold alloy

Patent metadata

Field	Value
Publication number	US-2016306327-A2
Application number	US-201414765630-A
Country	US
Kind code	A2
Filing date	Feb 6, 2014
Priority date	Feb 6, 2013
Publication date	Oct 20, 2016
Grant date	—

Abstract

The invention relates to a timepiece or piece of jewellery comprising an alloy containing at least 750 wt.-‰ gold, characterised in that the alloy comprises at least 200‰ copper, 4‰-35‰ palladium and 1‰-16‰ indium.

First claim

1 . A timepiece or jewelry part comprising an alloy comprising, by weight:
at least 750‰ gold, at least 200‰ copper, between 4‰ and 35‰ palladium, and between 1‰ and 16‰ indium.

2 . The timepiece or jewelry part as claimed in claim 1 , wherein the alloy comprises between 19‰ and 35‰ palladium and between 1‰ and 16‰ indium.

3 . The timepiece or jewelry part as claimed in claim 1 , wherein the alloy does not comprise at least one of (i) silver and (ii) manganese.

4 . The timepiece or jewelry part as claimed in claim 1 , wherein the timepiece or jewelry park has at least one solid portion composed of said alloy and comprising a thickness greater than or equal to 0.1 mm.

5 . The timepiece or jewelry part as claimed in claim 1 , wherein a sum of contents of palladium and indium in the alloy is at least one of (i) less than or equal to 45‰, and (ii) between 15‰ and 35‰.

6 . The timepiece or jewelry part as claimed in claim 1 , wherein the alloy furthermore comprises at least one grain refining element.

7 . The timepiece or jewelry part as claimed in claim 6 , wherein a content of the grain refining element(s) is less than or equal to 2‰.

8 . The timepiece or jewelry part as claimed in claim 1 , wherein the alloy consists of:
gold, copper, palladium, indium, or gold, copper, palladium, indium and at least one grain refining element, or gold, copper, palladium, indium, and at least one element Y selected from calcium (Ca), strontium (Sr), silicon (Si), titanium (Ti), zirconium (Zr) and magnesium (Mg), or gold, copper, palladium, indium, at least one grain refining element, and at least one element Y selected from calcium (Ca), strontium (Sr), silicon (Si), titanium (Ti), zirconium (Zr) and magnesium (Mg).

9 . The timepiece or jewelry part as claimed in claim 1 , wherein the alloy comprises gold, copper, palladium, indium, and at least one element Y selected from Ca, Sr, Si, Ti, Zr, and Mg.

10 . The timepiece or jewelry part as claimed in claim 8 , wherein the alloy comprises at least one of (i) calcium, wherein a content of calcium is less than or equal to 10‰, and (ii) silicon, wherein a content of silicon is less than or equal to 2‰.

11 . The timepiece or jewelry part as claimed in claim 1 , wherein the sum of the contents of all the elements of the alloy apart from gold and copper is less than or equal to 40‰.

12 . A watch comprising a timepiece as claimed in claim 1 .

13 . The timepiece or jewelry part as claimed in claim 1 , wherein the alloy comprises between 21‰ and 35‰ palladium and between 1‰ and 10‰ indium.

14 . The timepiece or jewelry part as claimed in claim 1 , wherein the alloy comprises between 23‰ and 31‰ palladium and between 1‰ and 6‰ indium.

15 . The timepiece or jewelry part as claimed in claim 1 , wherein the alloy comprises between 23‰ and 27‰ palladium and between 1‰ and 4‰ indium.

16 . The timepiece or jewelry part as claimed in claim 1 , wherein the sum of the contents of palladium and indium in the alloy is at least one of (i) less than or equal to 35‰, and (ii) between 20‰ and 35‰.

17 . The timepiece or jewelry part as claimed in claim 1 , wherein the sum of the contents of palladium and indium in the alloy is at least one of (i) less than or equal to 30‰, and (ii) between 25‰ and 33‰.

18 . The timepiece or jewelry part as claimed in claim 1 , wherein the sum of the contents of palladium and indium in the alloy is less than or equal to 25‰.

19 . The timepiece or jewelry part as claimed in claim 6 , wherein the at least one grain refining element is selected from Ru, Ir, Re, Co, V and Mo.

20 . The timepiece or jewelry part as claimed in claim 6 , wherein a content of the grain refining element(s) is less than or equal to 1‰.

Assignees

• Dubos Pascal
• Ricard Jean-Francois
• Rolex Sa

Inventors

• Dubos Pascal
• Ricard Jean-Francois

Classifications

• A44C27/003

  Metallic alloys (alloys in general C22C) · CPC title

• C22C5/02 Primary

  Alloys based on gold · CPC title

• G04B37/22 Primary

  Materials or processes of manufacturing pocket watch or wrist watch cases {(machines or tools for the manufacture of clockwork cases G04D3/0064, G04D3/0097, G04D3/029; decoration or tools therefor G04B45/0076)} · CPC title

• A44C5/00

  Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps {(settings for holding gems or the like A44C17/02; devices for putting-on or pulling-off bracelets A47G25/901)} · CPC title