Plumbing fixtures and fittings employing copper-bismuth casting alloys
First Claim
Patent Images
1. A plumbing fixture or fitting cast from an alloy consisting essentially of about 0.1 to 7% bismuth, up to about 16% tin, about 4 to 25% zinc, up to about 27% nickel, about 0.1 to 1% mischmetal or its rare earth equivalent, and the balance copper and incidental impurities.
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Accused Products
Abstract
A plumbing fixture or fitting fabricated from a bismuth and mischmetal containing copper alloy.
104 Citations
15 Claims
- 1. A plumbing fixture or fitting cast from an alloy consisting essentially of about 0.1 to 7% bismuth, up to about 16% tin, about 4 to 25% zinc, up to about 27% nickel, about 0.1 to 1% mischmetal or its rare earth equivalent, and the balance copper and incidental impurities.
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12. A plumbing fixture or fitting constructed from a cast alloy consisting essentially of:
space="preserve" listing-type="tabular">______________________________________ copper at least 50% bismuth about 0.1 to 7% mischmetal or its rare about 0.01 to 2% earth equivalent tin up to about 20% zinc 4 to about 42% nickel 0 to about 27% manganese 0 to about 15% silicon 0 to about 6% aluminum 0 to about 11% iron 0 to about 5% lead 0 to about 4% antimony 0 to about 1% selenium 0 to about 1% tellurium 0 to about 1% zirconium 0 to about 1% boron 0 to about 1% silver 0 to about 1% cobalt 0 to about 1% chromium 0 to about 1% phosphorus 0 to about 1% and incidental impurities. ______________________________________- View Dependent Claims (13, 14, 15)
Specification