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US 2016/0235073 A1Published application
White antimicrobial copper alloy
AssigneeSloan Valve Company
InventorsMichael Murray, Mahi Sahoo
Life of this patent
Estimating the term…
Abstract
White/silver copper alloy that is machineable and have sufficient physical and mechanical properties for use in sand and permanent molding and casting. The alloys include less than 0.09 wt % lead to allow for use in potable water supplies. The alloys and also contains sufficient copper to exhibit antimicrobial properties for use in hospitals.
Claims21
A composition of matter consisting essentially of:
- at least 60 wt % copper;
- 8 wt %-10 wt % nickel;
- 16 wt %-21 wt % zinc;
- 8 wt %-12 wt % manganese;
- 0.1 wt %-1 wt % antimony;
- 0.2 wt %-1.5 wt % tin;
- 0.1 wt %-2.0 wt % aluminum;
- greater than 0 wt % and less than 0.25 wt % sulfur;
- greater than 0 wt % and less than 0.6 wt % iron;
- greater than 0 wt % and less than 0.1 wt % carbon;
- greater than 0 wt % and less than 0.05 wt % phosphorous;
- greater than 0 wt % and less than 0.09 wt % lead;
- and
- greater than 0 wt % and less than 0.05 wt % silicon.
11 more elements
A composition of matter consisting essentially of:
- 58 wt % to 64 wt % copper;
- 8 wt %-10 wt % nickel;
- 16 wt %-21 wt % zinc;
- 8 wt %-12 wt % manganese;
- 0.1 wt %-1 wt % antimony;
- 0.2 wt %-1.5 wt % tin;
- 0.1 wt %-2.0 wt % aluminum;
- greater than 0 wt % and less than 0.25 wt % sulfur;
- greater than 0 wt % and less than 0.6 wt % iron;
- greater than 0 wt % and less than 0.1 wt % carbon;
- greater than 0 wt % and less than 0.05 wt % phosphorous;
- greater than 0 wt % and less than 0.09 wt % lead;
- and
- greater than 0 wt % and less than 0.05 wt % silicon.
11 more elements
A composition of matter comprising:
- 58 wt %-64 wt % copper
- 8 wt %-10 wt % nickel;
- 16 wt %-21 wt % zinc;
- 8 wt %-12 wt % manganese;
- 0.1 wt %-1 wt % antimony;
- 0.2 wt %-1.5 wt % tin;
- and
- 0.1-2.0 wt % aluminum.
5 more elements
A composition of matter consisting essentially of:
- 62 wt % to 70% copper;
- 2 wt %-4 wt % nickel;
- 16 wt %-21 wt % zinc;
- 8 wt %-12 wt % manganese;
- 0.1 wt %-1.0 wt % antimony;
- 0.2 wt %-1.5 wt % tin;
- 0.1 wt %-2.0 wt % aluminum;
- greater than 0 wt % and less than 0.25 wt % sulfur;
- greater than 0 wt % and less than 0.6 wt % iron;
- greater than 0 wt % and less than 0.1 wt % carbon;
- greater than 0 wt % and less than 0.05 wt % phosphorous;
- greater than 0 wt % and less than 0.09 wt % lead;
- and
- greater than 0 wt % and less than 0.05 wt % silicon.
11 more elements
A composition of matter comprising:
- 62 wt %-70 wt % copper;
- 2 wt %-4 wt % nickel;
- 16 wt %-21 wt % zinc;
- 8 wt %-12 wt % manganese;
- 0.25 wt % sulfur;
- 0.1 wt %-1 wt % antimony;
- 0.2 wt %-1.5 wt % tin;
- and
- 0.1-2.0 wt % aluminum.
6 more elements
Dependencies are inferred from the claim text.