US3627593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two phase nickel-zinc alloy
Assignee: Huntington Alloys Corp
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Filing: 1969-10-30
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Granted: 1971-12-14
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Expires: 1989-10-30
Abstract
Abstract Process of heat treating and mechanically working nickel-zinc alloys or copper-nickel-zinc alloys produces products having special alpha-beta microstructure characterized by high strength at room temperature and high deformability at elevated temperatures.
Inventors
- 👤 Frank J Ansuini
- 👤 Jacob Schramm
- 👤 Frank A Badia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:39
CPC Classifications
C; C22; C22C; C22C9/00; C22C9/04; C22C9/06; C22F; C22F1/00; C22F1/08
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
24 words
A product as set forth in claim 1 characterized by a room temperature yield strength of at least about 60,000 pounds per square inch.
Claim 2
Dependent Claim
27 words
A product as set forth in claim 1 wherein the average alpha grain size and the average beta particle size are not greater than about 10 microns.
Claim 3
Dependent Claim
32 words
A product as set forth in claim 1 composed of an alloy composition represented by a point in the area bounded by the line ABCDEFGA on FIG. 1 of the accompanying drawing.
Claim 4
Dependent Claim
32 words
A product as set forth in claim 1 composed of an alloy composition represented by a point within the area bounded by the line BCFGB on FIG. 1 of the accompanying drawing.
Claim 5
Dependent Claim
15 words
A product as set forth in claim 1 comprising at least about 33 percent nickel.
Claim 6
Dependent Claim
33 words
A product as set forth in claim 1 characterIzed by a tensile elongation of at least about 200 percent at a temperature in the range of about 750* F. to about 1,000* F.
Claim 7
Dependent Claim
46 words
A product as set forth in claim 1 comprising 8 percent to 40 percent nickel, zinc in an amount not less than the percentage determined by the relationship %Zn 38-0.23(%Ni) and not greater than the percentage determined by the relationship %Zn 42-0.23(%Ni) and balance essentially copper.
Claim 8
Dependent Claim
18 words
A product as set forth in claim 1 containing lead in an amount up to about 2 percent.
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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) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |