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US 4,734,254 AGranted
Enhanced machining anneal resistant copper alloy
AssigneeThe Nippert Company
InventorRussell A. Nippert
Life of this patent
Estimating the term…
Abstract
An enhanced machining oxygen-free copper alloy is provided which contains at least 0.02% by weight silver and from 25 to 100 parts per million sulfur. The copper alloy is anneal resistant and has sufficient ductility to permit cold working.
Claims4
An enhanced machining, anneal resistant, oxygen-free, copper-based alloy consisting essentially of at least 0.02% by weight silver, from 25 to 100 parts per million sulfur, and the balance copper.
An enhanced machining, anneal resistant, oxygen-free, copper-based alloy consisting essentially of 0.04% by weight silver, 50 parts per million sulfur, and the balance copper.
Dependencies are inferred from the claim text.