US4253870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Homogeneous brazing foils of copper based metallic glasses
Assignee: Honeywell International Inc
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Filing: 1979-10-26
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Granted: 1981-03-03
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Expires: 1999-10-26
Abstract
Abstract Novel glassy metal alloys and the brazing of metal parts employing a homogeneous ductile filler metal foil of these alloys is disclosed. The glassy metal alloys have a composition consisting essentially of 5 to 40 atom percent nickel, 15 to 20 atom percent phosphorus with the balance being copper and incidental impurities. These alloys can be produced in the form of foil useful for brazing metal articles, particularly articles composed of copper and copper alloys.
Inventors
- 👤 Nicholas J. DeCristofaro
- 👤 Claude Henschel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:55
CPC Classifications
C; C22; C22C; C22C45/00; C22C45/001; B; B23; B23K; B23K35/00; B23K35/02; B23K35/0222; B23K35/0233; B23K35/22; B23K35/24; B23K35/30; B23K35/302; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12431
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
34 words
A metal alloy composition consisting essentially of 5 to 40 atom percent nickel, 15 to 20 atom percent phosphorus, the balance being copper and incidental impurities, said alloy having at least partially glassy structure.
Claim 2
Dependent Claim
34 words
A metal alloy composition consisting essentially of 5 to 40 atom percent nickel, 15 to 20 atom percent phosphorus, the balance being copper and incidental impurities, said alloy having at least partially glassy structure.
Claim 3
Dependent Claim
16 words
A metal alloy composition as recited in claim 1, which is at least about 50% glassy.
Claim 4
Dependent Claim
13 words
A metal alloy composition as recited in claim 1, which is 100% glassy.
References Cited (Backward Citations)
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US4006838A
Cited
US4148973A
Cited
US4135924A
Cited
US4149881A
Cited
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Cited
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Cited
US4160854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-02 | 1984-09-01 | 1985-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-02 | 1988-09-01 | 1989-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-02 | 1992-09-01 | 1993-03-03 | $7700.00 | Window Closed / Lapsed |