US3290182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making aluminum bronze articles
Assignee: Olin Corp
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Filing: 1965-05-25
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Granted: 1966-12-06
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Expires: 1985-05-25
Abstract
No abstract record available.
Inventors
- 👤 Jr George H Eichelman
- 👤 Broverman Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:31
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/3606; B23K35/24; B23K35/30; B23K35/302; C; C22; C22C; C22C9/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
THE METHOD OF PREPARING A HIGH STRENGTH JOINED ARTICLE WHICH COMPRISES: (1) PROVIDING ALUMINUM BRONZE ALLOY SURFACES TO BE JOINED IN THE ROLLED CONDITION, SAID ALLOY CONTAINING FROM 9.0 TO 11.8 PERCENT ALUMINUM AND THE BALANCE ESSENTIALLY COPPER; (2) APPLYING A BRAZING FLUX AND FILLER METAL TO THE SURFACES TO BE JOINED, SAID FILLER METAL HAVING A MELTING POINT ABOVE ABOUT 1049*F. BUT BELOW THE MELTING POINT OF SAID ALUMINUM BRONZE ALLOY SAID BRAZING FLUX HAVING A MELTING POINT LOWER THAN THE FILLER METAL; (3) FORMING AN ASSEMBLY BY PLACING THE SURFACES TO BE JOINED WITH INTERPOSED BRAZING FLUX AND FILLER METAL INTO INTIMATE CONTACTING RELATIONSHIP; (4) HEATING SAID ASSEMBLY TO A TEMPERATURE ABOVE THE MELTING POINT OF THE FILLER METAL BUT BELOW THE MELTING POINT OF SAID ALUMINUM BRONZE ALLOY, AND (5) RAPIDLY COOLING SAID ASSEMBLY TO TEMPERATURE OF AT LEAST BELOW 1000*F. AT A RATE GREATER THAN 300*F. PER MINUTE.
Claim 2
Independent Claim
152 words
THE METHOD OF PREPARING A HIGH STRENGTH JOINED ARTICLE WHICH COMPRISES: (1) PROVIDING ALUMINUM BRONZE ALLOY SURFACES TO BE JOINED IN THE ROLLED CONDITION, SAID ALLOY CONTAINING FROM 9.0 TO 11.8 PERCENT ALUMINUM AND THE BALANCE ESSENTIALLY COPPER; (2) APPLYING A BRAZING FLUX AND FILLER METAL TO THE SURFACES TO BE JOINED, SAID FILLER METAL HAVING A MELTING POINT ABOVE ABOUT 1049*F. BUT BELOW THE MELTING POINT OF SAID ALUMINUM BRONZE ALLOY SAID BRAZING FLUX HAVING A MELTING POINT LOWER THAN THE FILLER METAL; (3) FORMING AN ASSEMBLY BY PLACING THE SURFACES TO BE JOINED WITH INTERPOSED BRAZING FLUX AND FILLER METAL INTO INTIMATE CONTACTING RELATIONSHIP; (4) HEATING SAID ASSEMBLY TO A TEMPERATURE ABOVE THE MELTING POINT OF THE FILLER METAL BUT BELOW THE MELTING POINT OF SAID ALUMINUM BRONZE ALLOY, AND (5) RAPIDLY COOLING SAID ASSEMBLY TO TEMPERATURE OF AT LEAST BELOW 1000*F. AT A RATE GREATER THAN 300*F. PER MINUTE.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |