US2010329920A1PendingUtilityA1

Cobalt-based jewelry article

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Assignee: ROSENBERG EDWARDPriority: Jun 26, 2009Filed: Nov 30, 2009Published: Dec 30, 2010
Est. expiryJun 26, 2029(~2.9 yrs left)· nominal 20-yr term from priority
Inventors:Edward Rosenberg
C22C 1/0433A44C 27/003C22C 19/07Y10T29/49588B22F 2998/00
56
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Claims

Abstract

An article of jewelry and method of producing an article of jewelry, comprising providing a substrate made of a biocompatible medical grade cobalt-based alloy that includes cobalt, chromium and molybdenum. The cobalt-based alloy substrate is formed into a desired shape of the article of jewelry.

Claims

exact text as granted — not AI-modified
1 . An article of jewelry, comprising at least one jewelry component made of a cobalt-based alloy that comprises cobalt, chromium and molybdenum. 
     
     
         2 . The article of jewelry according to  claim 1 , wherein the cobalt-based alloy is a biocompatible medical grade cobalt-based alloy. 
     
     
         3 . The article of jewelry according to  claim 2 , wherein the cobalt-based alloy consists essentially of about 26-30% chromium, about 5-7% molybdenum, about 1% max. manganese, about 1% max. silicon, about 1% max. nickel, about 0.75% max. iron, about 0.25% max. nitrogen, about 0.14% max. carbon, and the balance consisting of cobalt. 
     
     
         4 . The article of jewelry according to  claim 3 , wherein the cobalt-based alloy contains not more than about 0.10% carbon. 
     
     
         5 . The article of jewelry according to  claim 1 , wherein the cobalt-based alloy comprises about 26-30% chromium, about 5-7% molybdenum, and about 57-70% cobalt. 
     
     
         6 . The article of jewelry according to  claim 5 , wherein the cobalt-based alloy further comprises not more than about 5% nickel. 
     
     
         7 . The article of jewelry according to  claim 6 , wherein the cobalt-based alloy further comprises not more than about 3% nickel. 
     
     
         8 . The article of jewelry according to  claim 7 , wherein the cobalt-based alloy further comprises not more than about 1% nickel. 
     
     
         9 . The article of jewelry according to  claim 8 , wherein the cobalt-based alloy further comprises not more than about 1% manganese and not more than about 1% silicon. 
     
     
         10 . The article of jewelry according to  claim 9 , wherein the cobalt-based alloy further comprises not more than about 0.25% nitrogen. 
     
     
         11 . The article of jewelry according to  claim 9 , wherein the cobalt-based alloy further comprises not more than about 1.5% iron. 
     
     
         12 . The article of jewelry according to  claim 11 , wherein the cobalt-based alloy further comprises not more than about 0.75% iron. 
     
     
         13 . The article of jewelry according to  claim 9 , wherein the cobalt-based alloy further comprises not more than about 0.35% carbon. 
     
     
         14 . The article of jewelry according to  claim 13 , wherein the cobalt-based alloy further comprises about 0.15-0.35% carbon. 
     
     
         15 . The article of jewelry according to  claim 13 , wherein the cobalt-based alloy further comprises not more than about 0.14% carbon. 
     
     
         16 . The article of jewelry according to  claim 15 , wherein the cobalt-based alloy further comprises not more than about 0.10% carbon. 
     
     
         17 . The article of jewelry according to  claim 1 , wherein the article of jewelry is selected from the group consisting of a ring, band, earring, chain, necklace, bracelet, belt buckle, cufflink, money clip and shirt stud. 
     
     
         18 . A method of producing an article of jewelry, comprising:
 providing a substrate made of a cobalt-based alloy comprising cobalt, chromium and molybdenum; and   forming the cobalt-based alloy substrate into a desired shape of the article of jewelry.   
     
     
         19 . The method according to  claim 18 , wherein the cobalt-based alloy is a biocompatible medical grade cobalt-based alloy. 
     
     
         20 . The method according to  claim 19 , wherein the cobalt-based alloy consists essentially of about 26-30% chromium, about 5-7% molybdenum, about 1% max. manganese, about 1% max. silicon, about 1% max. nickel, about 0.75% max. iron, about 0.25% max. nitrogen, about 0.14% max. carbon, and the balance consisting of cobalt. 
     
     
         21 . The method according to  claim 20 , wherein the cobalt-based alloy contains not more than about 0.10% carbon. 
     
     
         22 . The method according to  claim 18 , wherein the cobalt-based alloy comprises about 26-30% chromium, about 5-7% molybdenum, and about 57-70% cobalt. 
     
     
         23 . The method according to  claim 22 , wherein the cobalt-based alloy further comprises not more than about 5% nickel. 
     
     
         24 . The article of jewelry according to  claim 23 , wherein the cobalt-based alloy further comprises not more than about 3% nickel. 
     
     
         25 . The article of jewelry according to  claim 24 , wherein the cobalt-based alloy further comprises not more than about 1% nickel. 
     
     
         26 . The method according to  claim 25 , wherein the cobalt-based alloy further comprises not more than about 1% manganese and not more than about 1% silicon. 
     
     
         27 . The method according to  claim 26 , wherein the cobalt-based alloy further comprises not more than about 0.25% nitrogen. 
     
     
         28 . The method according to  claim 26 , wherein the cobalt-based alloy further comprises not more than about 1.5% iron. 
     
     
         29 . The method according to  claim 28 , wherein the cobalt-based alloy further comprises not more than about 0.75% iron. 
     
     
         30 . The method according to  claim 26 , wherein the cobalt-based alloy further comprises not more than about 0.35% carbon. 
     
     
         31 . The method according to  claim 30 , wherein the cobalt-based alloy further comprises about 0.15-0.35% carbon. 
     
     
         32 . The method according to  claim 30 , wherein the cobalt-based alloy further comprises not more than about 0.14% carbon. 
     
     
         33 . The method according to  claim 32 , wherein the cobalt-based alloy further comprises not more than about 0.10% carbon. 
     
     
         34 . An article of jewelry formed by the method of  claim 18 . 
     
     
         35 . The method according to  claim 34 , wherein the article of jewelry is selected from the group consisting of a ring, band, earring, chain, necklace, bracelet, belt buckle, cufflink, money clip and shirt stud.

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