US4003715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper-manganese-zinc brazing alloy
Assignee: Johnson A and Co
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Filing: 1975-06-13
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Granted: 1977-01-18
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Expires: 1995-06-13
Abstract
Abstract A brazing alloy composition is provided for brazing together a ferrous metal part to another part, said alloy comprising about 15% to 30% manganese, about 15% to 30% zinc, 0 to about 10% nickel (e.g. 0.5% to 10%) and the balance essentially copper ranging from about 45% to 65%, the brazed joint produced comprising a ferrous metal part on one side strongly bonded at the interface to another part.
Inventors
- 👤 Paul J. Cascone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:55
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/302; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12069; Y10T428/12076; Y10T428/12493; Y10T428/12535; Y10T428/12576; Y10T428/12611; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/12917
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
74 words
A brazed joint comprised of assembled parts with a fused brazing alloy interposed therebetween, at least one part being a ferrous metal, said fused brazing alloy making up the joint consisting essentially by weight of about 15% to 30% manganese, about 15% to 30% zinc, 0 to about 10% nickel and the balance essentially copper ranging from about 45% to 65% and having a melting point ranging from about 1500° F to 1700° F.
Claim 2
Dependent Claim
74 words
A brazed joint comprised of assembled parts with a fused brazing alloy interposed therebetween, at least one part being a ferrous metal, said fused brazing alloy making up the joint consisting essentially by weight of about 15% to 30% manganese, about 15% to 30% zinc, 0 to about 10% nickel and the balance essentially copper ranging from about 45% to 65% and having a melting point ranging from about 1500° F to 1700° F.
Claim 3
Dependent Claim
74 words
A brazed joint comprised of assembled parts with a fused brazing alloy interposed therebetween, at least one part being a ferrous metal, said fused brazing alloy making up the joint consisting essentially by weight of about 15% to 30% manganese, about 15% to 30% zinc, about 0.5% to 10% nickel and the balance essentially copper ranging from about 45% to 65% and having a melting point ranging from about 1500° F to 1700° F.
Claim 4
Dependent Claim
74 words
A brazed joint comprised of assembled parts with a fused brazing alloy interposed therebetween, at least one part being a ferrous metal, said fused brazing alloy making up the joint consisting essentially by weight of about 15% to 30% manganese, about 15% to 30% zinc, about 0.5% to 10% nickel and the balance essentially copper ranging from about 45% to 65% and having a melting point ranging from about 1500° F to 1700° F.
Claim 5
Dependent Claim
90 words
A brazed joint comprising a ferrous metal part jointed to a part selected from the group consisting of a ferrous metal, a sintered refractory metal oxide ceramic, and borides, silicides and carbides of Zr, Ti, W, Mo and Cr, the braze alloy making up the joint consisting essentially by weight of about 15% to 30% manganese, about 15% to 30% zinc, 0 to about 10% nickel and the balance essentially copper ranging from about 45% to 65% and having a melting point ranging from about 1500° F to 1700° F.
Claim 6
Dependent Claim
90 words
A brazed joint comprising a ferrous metal part jointed to a part selected from the group consisting of a ferrous metal, a sintered refractory metal oxide ceramic, and borides, silicides and carbides of Zr, Ti, W, Mo and Cr, the braze alloy making up the joint consisting essentially by weight of about 15% to 30% manganese, about 15% to 30% zinc, 0 to about 10% nickel and the balance essentially copper ranging from about 45% to 65% and having a melting point ranging from about 1500° F to 1700° F.
Claim 7
Dependent Claim
15 words
The brazed joint of claim 3, wherein the nickel ranges from about 1% to 8%.
Claim 8
Dependent Claim
26 words
The brazed joint of claim 3, wherein the braze making up the joint comprises approximately the following: 23% manganese, 22% zinc, 5% nickel and 50% copper.
Claim 9
Dependent Claim
66 words
A brazed joint comprising a sintered ferrous powder metallurgy part joined to a cast iron part, the braze alloy making up the joint consisting essentially by weight of about 15% to 30% manganese, about 15% to 30% zinc, 0 to 10% nickel and the balance essentially copper ranging from about 45% to 65% and having a melting point ranging from about 1500° F to 1700° F.
Claim 10
Dependent Claim
66 words
A brazed joint comprising a sintered ferrous powder metallurgy part joined to a cast iron part, the braze alloy making up the joint consisting essentially by weight of about 15% to 30% manganese, about 15% to 30% zinc, 0 to 10% nickel and the balance essentially copper ranging from about 45% to 65% and having a melting point ranging from about 1500° F to 1700° F.
Claim 11
Dependent Claim
15 words
The brazed joint of claim 6, wherein the nickel ranges from about 1% to 8%.
Claim 12
Dependent Claim
26 words
The brazed joint of claim 6, wherein the braze making up the joint comprises approximately the following: 24.5% manganese, 24.5% zinc, 1% nickel and 50% copper.
Claim 13
Dependent Claim
18 words
The brazed joint of claim 6, wherein the cast iron part in the joint is ductile cast iron.
Claim 14
Dependent Claim
65 words
A brazed joint comprising a first cast iron part joined to a second cast iron part, the braze alloy making up the joint consisting essentially by weight about 15% to 30% manganese, about 10% to 30% zinc, 0 to 10% nickel and the balance essentially copper ranging from about 45% to 65% and having a melting point ranging from about 1500° F to 1700° F.
Claim 15
Dependent Claim
65 words
A brazed joint comprising a first cast iron part joined to a second cast iron part, the braze alloy making up the joint consisting essentially by weight about 15% to 30% manganese, about 10% to 30% zinc, 0 to 10% nickel and the balance essentially copper ranging from about 45% to 65% and having a melting point ranging from about 1500° F to 1700° F.
Claim 16
Dependent Claim
15 words
The brazed joint of claim 10, wherein the nickel ranges from about 1% to 8%.
Claim 17
Dependent Claim
26 words
The brazed joint of claim 10, wherein the braze making up the joint comprises approximately the following: 24.5% manganese, 24.5% zinc, 1% nickel and 50% copper.
Claim 18
Dependent Claim
18 words
The brazed joint of claim 10, wherein at least the first cast iron part is ductile cast iron.
Claim 19
Dependent Claim
24 words
The brazed joint of claim 13, wherein both the first and second cast iron parts in the joint are made of ductile cast iron.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-18 | 1980-07-19 | 1981-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-18 | 1984-07-19 | 1985-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-18 | 1988-07-19 | 1989-01-18 | $7700.00 | Window Closed / Lapsed |