Patent US2882593A successfully refreshed from Google Patents.
US2882593A
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Brazing flux
Assignee: Curtiss Wright Corp
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Filing: 1957-06-10
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Granted: 1959-04-21
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Expires: 1977-06-10
Abstract
No abstract record available.
Inventors
- 👤 Merlub-Sobel Menahem
- 👤 Karl M Weigert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:17
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/3603
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
54 words
A FLUX MIXTURE CONSISTING OF 30% TO 70% BY WEIGHT OF KHF2 AND 20% TO 80% OF KC1 WHICH SUBSTANCES TOGETHER CONSTITUTE 80% TO 99% OF THE WEIGHT OF THE MIXTURE; AND 1% TO 20% BY WEIGHT OF BACL2, 0% TO 5% BY WEIGHT OF BAF2 AND 0% TO 5% BY WEIGHT OF LIF.
Claim 2
Dependent Claim
54 words
A FLUX MIXTURE CONSISTING OF 30% TO 70% BY WEIGHT OF KHF2 AND 20% TO 80% OF KC1 WHICH SUBSTANCES TOGETHER CONSTITUTE 80% TO 99% OF THE WEIGHT OF THE MIXTURE; AND 1% TO 20% BY WEIGHT OF BACL2, 0% TO 5% BY WEIGHT OF BAF2 AND 0% TO 5% BY WEIGHT OF LIF.
Claim 3
Dependent Claim
63 words
A METHOD OF BRAZING TWO METALS OF WHICH AT LEAST ONE CONTAINS TITANIUM COMPRISING THE STEPS OF PROVIDING A SILVER-BASE FILLER MATEIAL HAVING A MELTING TEMPERATURE BETWEEN 1300* F. AND 1500* F. AND A FLUX CONSTITUTED ACCORDING TO CLAIM 1; AND MELTING SAID FILLER MATERIAL AT TEMPERATURES UP TO 1500* F. IN THE PRESENCE OF SAID FLUX ONTO METAL SURFACE TO BE JOINED.
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) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |