Patent US2596466A successfully refreshed from Google Patents.
US2596466A
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US
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Flux for lead burning and method of making same
Assignee: National Cylinder Gas Co
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Filing: 1948-03-15
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Granted: 1952-05-13
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Expires: 1968-03-15
Abstract
No abstract record available.
Inventors
- 👤 James H Rowden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:29
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/3603; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
FLUX FOR LEAD BURNING AND THE LIKE COMPOSED ESSENTIALLY OF FROM ABOUT 50 TO ABOUT 80 MOL PERCENT OF A ZINC HALIDE, TOGETHER WITH FROM ABOUT 1 TO ABOUT 4 MOL PERCENT OF AT LEAST ONE OF THE GROUP CONSISTING OF TIN, SILVER, LEAD AND GOLD HALIDES REACTED WITH AMMONIA IN AN AMOUNT EQUIVALENT TO AT LEAST ABOUT ONE-EIGHTH BUT NOT MORE THAN ABOUT THREE-TENTHS OF THAT REQUIRED FOR COMPLETE FORMATION FO AMMINE COMPLEX SALTS WITH SAID METAL HALIDES, AND CONTAINING ALSO FROM ABOUT 2 TO ABOUT 7 MOL PERCENT OF AT LEAST ONE AMMONIUM HALIDE, SAID FLUX BEING SUBSTANTIALLY HOMOGENEOUS AND FLUID AT TEMPERATURES NOT GREATLY ABOVE 100* C., AND CHARACTERIZED BY AFFINITY FOR AND WETTING OF METAL SURFACES TO PROMOTE RAPID AND THOROUGH FUSION BONDING OF LEAD AND ALLOYS RICH IN LEAD TO SAID SURFACES WETTED BY SAID FLUX, THE RESIDUES OF SAID FLUX AFTER ITS CONTACT WITH MOLTEN LEAD BEING SUBSTANTIALLY NONCORROSIVE TO METALS.
Claim 2
Dependent Claim
157 words
FLUX FOR LEAD BURNING AND THE LIKE COMPOSED ESSENTIALLY OF FROM ABOUT 50 TO ABOUT 80 MOL PERCENT OF A ZINC HALIDE, TOGETHER WITH FROM ABOUT 1 TO ABOUT 4 MOL PERCENT OF AT LEAST ONE OF THE GROUP CONSISTING OF TIN, SILVER, LEAD AND GOLD HALIDES REACTED WITH AMMONIA IN AN AMOUNT EQUIVALENT TO AT LEAST ABOUT ONE-EIGHTH BUT NOT MORE THAN ABOUT THREE-TENTHS OF THAT REQUIRED FOR COMPLETE FORMATION FO AMMINE COMPLEX SALTS WITH SAID METAL HALIDES, AND CONTAINING ALSO FROM ABOUT 2 TO ABOUT 7 MOL PERCENT OF AT LEAST ONE AMMONIUM HALIDE, SAID FLUX BEING SUBSTANTIALLY HOMOGENEOUS AND FLUID AT TEMPERATURES NOT GREATLY ABOVE 100* C., AND CHARACTERIZED BY AFFINITY FOR AND WETTING OF METAL SURFACES TO PROMOTE RAPID AND THOROUGH FUSION BONDING OF LEAD AND ALLOYS RICH IN LEAD TO SAID SURFACES WETTED BY SAID FLUX, THE RESIDUES OF SAID FLUX AFTER ITS CONTACT WITH MOLTEN LEAD BEING SUBSTANTIALLY NONCORROSIVE TO METALS.
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) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |