USRE29239EExpiredUtility

Ternary alloys

7
Priority: Jan 7, 1974Filed: Sep 17, 1975Granted: May 31, 1977
Est. expiryJan 7, 1994(expired)· nominal 20-yr term from priority
C25D 3/56C22C 13/00
7
PatentIndex Score
3
Cited by
3
References
1
Claims

Abstract

Bright, tarnish resistant and color stable ternary alloys of about 40 - 90% of tin, about 10 - 50% cobalt and about 1 - 28% of a third metal of Periodic Group II B , III B or VI B . Typical third metals are zinc, cadmium, indium, antimony or chromium. The alloys are electrodeposited from aqueous acidic baths at a temperature of about 50 - 85° C and current density of about 5 - 45 A/ft.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A bright, tarnish resistant and color stable ternary alloy consisting essentially of about 40- 90 wt. % tin   10- 50 wt. % cobalt   1- 28 wt. % third metal wherein said third metal is antimony.Iadd., zinc .Iaddend.or a metal of Periodic Group .[.II B ,.]. III A  or VI B .  .[.2. A ternary alloy as in claim 1 wherein said third metal is zinc, cadmium, indium, or     
     
     
        chromium..]. 3. A ternary alloy as in claim 1 wherein said third metal is zinc, indium or chromium.

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