US4486386A
Expired / Lapsed
US
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Reactive metal-palladium-gold brazing alloys
Assignee: Osram Sylvania Inc
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Filing: 1983-03-14
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Granted: 1984-12-04
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Expires: 2003-03-14
Abstract
Abstract Reactive metal-palladium-gold ductile alloys are suitable for brazing ceramics, other non-metallic and metallic materials.
Inventors
- 👤 Howard Mizuhara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:14
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/302; B23K35/3013; B23K35/32; B23K35/322; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12431
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
66 words
An article consisting essentially of a ductile brazing alloy foil having a composition consisting essentially of from about 0.05% to about 4% by weight of a reactive metal selected from the group consisting of titanium, vanadium, zirconium and mixtures thereof, from about 5% by weight to about 45% by weight of palladium and from about 55% by weight to about 94.9% by weight of gold thereof.
Claim 2
Dependent Claim
66 words
An article consisting essentially of a ductile brazing alloy foil having a composition consisting essentially of from about 0.05% to about 4% by weight of a reactive metal selected from the group consisting of titanium, vanadium, zirconium and mixtures thereof, from about 5% by weight to about 45% by weight of palladium and from about 55% by weight to about 94.9% by weight of gold thereof.
Claim 3
Dependent Claim
12 words
An alloy according to claim 1 wherein said reactive metal is titanium.
Claim 4
Dependent Claim
24 words
An alloy according to claim 1 wherein said reactive metal is present in an amount of from about 0.5% to about 2% by weight.
Claim 5
Dependent Claim
22 words
An alloy according to claim 3 wherein palladium is present in an amount of from about 8% to about 42% by weight.
Claim 6
Dependent Claim
23 words
An alloy according to claim 4 wherein gold is present in amounts of from about 55% by weight to about 91% by weight.
Claim 7
Dependent Claim
46 words
An alloy according to claim 2 wherein titanium is present in amounts of from about 0.05% to about 2% by weight, palladium is present in amounts of from about 6% to 10% by weight and gold is present in amounts of 88% to 93% by weight.
Claim 8
Dependent Claim
50 words
An alloy according to claim 2 wherein titanium is present in amounts of from about 1% to about 2% by weight, palladium is present in amounts of from about 18% to about 22% by weight and gold is present in amounts of from about 76% to about 81% by weight.
Claim 9
Dependent Claim
49 words
An alloy according to claim 2 wherein titanium is present in amounts of from about 1% to 2% by weight, palladium is present in amounts of from about 38% to about 42% by weight and gold is present in amounts of from about 56% to about 61% by weight.
References Cited (Backward Citations)
DE1121339B
Cited
DE1119933B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-12-04 | 1988-06-04 | 1988-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-04 | 1992-06-04 | 1992-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-04 | 1996-06-04 | 1996-12-04 | $7700.00 | Window Closed / Lapsed |