US4379121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brazing filler metal composition and process
Assignee: Honeywell International Inc
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Filing: 1981-07-09
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Granted: 1983-04-05
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Expires: 2001-07-09
Abstract
Abstract Disclosed is a brazing filler metal composition comprising, by weight, about 3.0% to 4.0% chromium, about 1.0%-2.0% boron; about 2.0%-2.5% silicon; about 1.0%-2.0% iron; about 5.0%-6.0% phosphorus; a maximum of about 0.06% carbon and the remainder nickel. Further disclosed is a vacuum brazing process utilizing said filler metal composition.
Inventors
- 👤 John H. McMurray
- 👤 Jule Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:19
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3033
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
53 words
A brazing filler metal composition comprising, by weight, from about 3.0% to about 4.0% chromium; from about 1.0% to about 2.0% boron; from about 2.0% to about 2.5% silicon; from about 1.0% to about 2.0% iron; from about 5.0% to about 6.0% phosphorus; a maximum of about 0.06% carbon; and the remainder nickel.
Claim 2
Dependent Claim
53 words
A brazing filler metal composition comprising, by weight, from about 3.0% to about 4.0% chromium; from about 1.0% to about 2.0% boron; from about 2.0% to about 2.5% silicon; from about 1.0% to about 2.0% iron; from about 5.0% to about 6.0% phosphorus; a maximum of about 0.06% carbon; and the remainder nickel.
Claim 3
Dependent Claim
31 words
The brazing filler metal composition of claim 1 comprising about 3.5% chromium; about 1.5% boron; about 2.5% silicon; about 1.5% iron; about 5.5% phosphorus; about 0.03% carbon; and the remainder nickel.
References Cited (Backward Citations)
US2762706A
Cited
US3238060A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-04-04 | 1986-10-04 | 1987-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-04-04 | 1990-10-04 | 1991-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-04-04 | 1994-10-04 | 1995-04-05 | $7700.00 | Window Closed / Lapsed |