Patent US5344606A successfully refreshed from Google Patents.
US5344606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid treatment alloy casting of Cu-Sn-Ni-Zn
Assignee: Individual
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Filing: 1993-05-07
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Granted: 1994-09-06
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Expires: 2013-05-07
Abstract
Abstract A suitable casting alloy for use in a fluid treatment device may be made as a copper-nickel-zinc-tin (CU--NI--ZN--SN) alloy without the addition of silver, silicon or magnesium, if certain identified trace metals are kept below certain levels. It appears that the previously identified additive metals, which are either expensive or dangerous, act to counteract the deleterious effects of these trace contaminants, and are not necessary of the contaminants are controlled. A method of forming the alloy prevents the explosive reactions encountered when melting together metals having significantly differing vaporization and melting temperatures.
Inventors
- 👤 Thomas E. Brimmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:23
CPC Classifications
C; C22; C22C; C22C9/00; C22C9/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
53 words
A fluid treatment alloy for casting consisting of: copper in the amount of 52 to 55% by weight; tin in the amount of 5 to 6% by weight; Nickel in the amount of 16 to 18% by weight; and Zinc in the amount of at least 20%; and no silver, silicon or magnesium.
Claim 2
Dependent Claim
53 words
A fluid treatment alloy for casting consisting of: copper in the amount of 52 to 55% by weight; tin in the amount of 5 to 6% by weight; Nickel in the amount of 16 to 18% by weight; and Zinc in the amount of at least 20%; and no silver, silicon or magnesium.
Claim 3
Dependent Claim
78 words
A fluid treatment alloy for use as a catalytic surface in a fluid treatment apparatus, comprising copper in the amount of 52 to 55% by weight; tin in the amount of 5 to 6% by weight; Nickel in the amount of 16 to 18% by weight; and Zinc in the amount of at least 20%; said alloy containing less than 1% manganese, less than 0.05% aluminum, and less than 0.5% iron, and no added silver, silicon or magnesium.
Claim 4
Dependent Claim
78 words
A fluid treatment alloy for use as a catalytic surface in a fluid treatment apparatus, comprising copper in the amount of 52 to 55% by weight; tin in the amount of 5 to 6% by weight; Nickel in the amount of 16 to 18% by weight; and Zinc in the amount of at least 20%; said alloy containing less than 1% manganese, less than 0.05% aluminum, and less than 0.5% iron, and no added silver, silicon or magnesium.
Claim 5
Dependent Claim
40 words
the alloy of claim 2 comprising: copper in the amount of 54.5%±0.1% by weight; tin in the amount of 5.4%±0.1% by weight; Nickel in the amount of 17.1%±0.1% by weight; and Zinc in the amount of at least 22.1±0.1% %;
References Cited (Backward Citations)
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US4429665A
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US4632806A
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US4644674A
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US5124122A
Cited
US5059217A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-09-05 | 1998-03-07 | 1998-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-09-05 | 2002-03-07 | 2002-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-09-05 | 2006-03-07 | 2006-09-06 | $7700.00 | Window Closed / Lapsed |