US3287540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and composition for joining of aluminum and dissimilar metals
Assignee: Honeywell International Inc
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Filing: 1964-05-19
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Granted: 1966-11-22
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Expires: 1984-05-19
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Connelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:35
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/34; B23K35/001; B23K35/002; B23K35/24; B23K35/26; B23K35/36; B23K35/3601; B23K35/3603; B23K9/00; B23K9/23; B23K9/232
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
220 words
THE METHOD OF JOINING ALUMINUM TO DISSIMILAR METAL WHICH COMPRISES: (A) FORMING A MOLTEN FLUX COMPOSITION ON A BRIGHT SURFACE OF A DISSIMILAR METAL SELECTED FROM THE GROUP CONSISTING OF IRON, NICKEL, COPPER, CHROMIUM, ZINC, AND MIXTURES THEREOF, SAID FLUX COMPOSITION CONSISTING ESSENTIALLY OF IN THE FOLLOWING PROPORTIONS BASED ON THE WEIGHT OF THE BASE METALS; (A) .35 TO 1.55 PARTS TIN, (B) .15 TO .75 PARTS ZINC, (C) 1.25 TO 5.5 PARTS LEAD; PROVIDED AT LEAST ONE MEMBER FROM THE GROUP OF (A), (B) AND (C), ABOVE, IS IN THE FORM OF A SALT OF THE METAL AND AT LEAST ONE OTHER MEMBER IN THE METALLIC FORM; (B) FORMING A THIN METAL DEPOSIT FROM SAID FLUX ON THE SURFACE OF THE DISSIMILAR METAL, (C) DISPOSING ALUMINUM METAL FREE OF OXIDES ADJACENT THE FLUX COATING, (D) APPLYING AN ELECTRIC ARC FROM AN ELECTRODE TO MELT THE ALUMINUM METAL AND FLUX COATING WHILE CONTROLLING THE ELECTRIC ARC AND HEAT GENERATED THEREBY TO AVOID BURNING OFF OF THE FLUX COATING, (E) SHIELDING SAID ALUMINUM METAL AND FLUX COATING WHILE IN THE MOLTEN STATE FROM THE ATMOSPHERE WITH A BLANKET OF AN INERT GAS (F) FLOWING SAID MOLTEN ALUMINUM METAL TO THE MOLTEN FLUX COATING WHEEL CONTINUING SAID INERT GAS SHIELDING AND ARC CONTROL TO JOIN SAID ALUMINUM METAL TO SAID DISSIMILAR METAL.
Claim 2
Independent Claim
220 words
THE METHOD OF JOINING ALUMINUM TO DISSIMILAR METAL WHICH COMPRISES: (A) FORMING A MOLTEN FLUX COMPOSITION ON A BRIGHT SURFACE OF A DISSIMILAR METAL SELECTED FROM THE GROUP CONSISTING OF IRON, NICKEL, COPPER, CHROMIUM, ZINC, AND MIXTURES THEREOF, SAID FLUX COMPOSITION CONSISTING ESSENTIALLY OF IN THE FOLLOWING PROPORTIONS BASED ON THE WEIGHT OF THE BASE METALS; (A) .35 TO 1.55 PARTS TIN, (B) .15 TO .75 PARTS ZINC, (C) 1.25 TO 5.5 PARTS LEAD; PROVIDED AT LEAST ONE MEMBER FROM THE GROUP OF (A), (B) AND (C), ABOVE, IS IN THE FORM OF A SALT OF THE METAL AND AT LEAST ONE OTHER MEMBER IN THE METALLIC FORM; (B) FORMING A THIN METAL DEPOSIT FROM SAID FLUX ON THE SURFACE OF THE DISSIMILAR METAL, (C) DISPOSING ALUMINUM METAL FREE OF OXIDES ADJACENT THE FLUX COATING, (D) APPLYING AN ELECTRIC ARC FROM AN ELECTRODE TO MELT THE ALUMINUM METAL AND FLUX COATING WHILE CONTROLLING THE ELECTRIC ARC AND HEAT GENERATED THEREBY TO AVOID BURNING OFF OF THE FLUX COATING, (E) SHIELDING SAID ALUMINUM METAL AND FLUX COATING WHILE IN THE MOLTEN STATE FROM THE ATMOSPHERE WITH A BLANKET OF AN INERT GAS (F) FLOWING SAID MOLTEN ALUMINUM METAL TO THE MOLTEN FLUX COATING WHEEL CONTINUING SAID INERT GAS SHIELDING AND ARC CONTROL TO JOIN SAID ALUMINUM METAL TO SAID DISSIMILAR METAL.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |