US2812419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding procedure for joining aluminum plates
Assignee: AO Smith Corp
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Filing: 1955-09-29
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Granted: 1957-11-05
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Expires: 1975-09-29
Abstract
No abstract record available.
Inventors
- 👤 John J Chyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:01
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/28; B23K35/286
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN THE PROCESS OF JOINING THE ADJACENT EDGES OF TWO HIGH STRENGTH ALUMINUM ALLOY ARTICLES BY A MULTILAYER WELD, THE STEPS WHICH COMPRISE PROVIDING BETWEEN THE EDGES A WELDING GROOVE HAVING A DAM TO SUPPORT A FIRST DEPOSIT OF FILLER METAL; FUSING IN THE GROOVE A FIRST LAYER OF FILER METAL CONSISTING ESSENTIALLY BY WEIGHT OF 4.0% TO 12.0% SILICON, 0.1% TO 0.5% IORN AND THE BALANCE ALUMINUM; AND FUSING AT LEAST A SECOND LAYER OF FILLER METAL SELECTED FROM THE GROUP CONSISTING OF AN ALLOY COMPOSED ESSENTIALLY BY WEIGHT OF 3.5% TO 5.5% COPPER, 0.1% TO 0.5% SILICON, 0.1% TO 0.7% MANGANESE,.1% TO
Claim 2
Dependent Claim
104 words
IN THE PROCESS OF JOINING THE ADJACENT EDGES OF TWO HIGH STRENGTH ALUMINUM ALLOY ARTICLES BY A MULTILAYER WELD, THE STEPS WHICH COMPRISE PROVIDING BETWEEN THE EDGES A WELDING GROOVE HAVING A DAM TO SUPPORT A FIRST DEPOSIT OF FILLER METAL; FUSING IN THE GROOVE A FIRST LAYER OF FILER METAL CONSISTING ESSENTIALLY BY WEIGHT OF 4.0% TO 12.0% SILICON, 0.1% TO 0.5% IORN AND THE BALANCE ALUMINUM; AND FUSING AT LEAST A SECOND LAYER OF FILLER METAL SELECTED FROM THE GROUP CONSISTING OF AN ALLOY COMPOSED ESSENTIALLY BY WEIGHT OF 3.5% TO 5.5% COPPER, 0.1% TO 0.5% SILICON, 0.1% TO 0.7% MANGANESE,.1% TO
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) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |