US2818352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding electrodes
Assignee: Westinghouse Electric Corp
•
Filing: 1954-05-28
•
Granted: 1957-12-31
•
Expires: 1974-05-28
Abstract
No abstract record available.
Inventors
- 👤 Howard C Ludwig
- 👤 Heuschkel Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:06
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; B23K35/36; B23K35/365; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2951; Y10T428/2953
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN MANUFACTURES OF THE CLASS DESCRIBED, A FERROUS WELDING ELECTRODE PARTICULARLY FOR MAKING HIGH DUCTILITY WELDS BY CONSUMABLE-ELECTRODE INERT-GAS-SHIELDED WELDING, PARTICULARLY AT STRAIGHT POLARITY, SAID ELECTRODE HAVING A COATING CONSISTING ESSENTIALLY OF AT LEAST ONE OXYGEN CONTAINING COMPOUND SELECTED FROM THE CLASS CONSISTING OF METAL OXIDES, METAL CARBONATES AND METAL PHOSPHATES, THE COMPOUND BEING SUCH THAT DURING THE ARC WELDING PROCESS, IT STABILIZES THE ARC, AND HAVING A CORE OF AN ALLOY CONSISTING ESSENTIALLY OF AN IRON BASE AND SMALL QUANTITIES OF CARBON, MANGANESE AND SILICON, THE CARBON, MANGANESE AND SILICON BEING PRESENT INDIVIDUAL QUANTITIES EQUAL TO OR EXCEEDING .028 CARBON, .58 MANGANESE AND .09 SILICON AND ALSO SATISFYING THE CONDITION THAT IN THE EQUATION
Claim 2
Dependent Claim
115 words
IN MANUFACTURES OF THE CLASS DESCRIBED, A FERROUS WELDING ELECTRODE PARTICULARLY FOR MAKING HIGH DUCTILITY WELDS BY CONSUMABLE-ELECTRODE INERT-GAS-SHIELDED WELDING, PARTICULARLY AT STRAIGHT POLARITY, SAID ELECTRODE HAVING A COATING CONSISTING ESSENTIALLY OF AT LEAST ONE OXYGEN CONTAINING COMPOUND SELECTED FROM THE CLASS CONSISTING OF METAL OXIDES, METAL CARBONATES AND METAL PHOSPHATES, THE COMPOUND BEING SUCH THAT DURING THE ARC WELDING PROCESS, IT STABILIZES THE ARC, AND HAVING A CORE OF AN ALLOY CONSISTING ESSENTIALLY OF AN IRON BASE AND SMALL QUANTITIES OF CARBON, MANGANESE AND SILICON, THE CARBON, MANGANESE AND SILICON BEING PRESENT INDIVIDUAL QUANTITIES EQUAL TO OR EXCEEDING .028 CARBON, .58 MANGANESE AND .09 SILICON AND ALSO SATISFYING THE CONDITION THAT IN THE EQUATION
References Cited (Backward Citations)
US1374711A
Cited
US1452781A
Cited
US1544422A
Cited
US2022307A
Cited
US2239465A
Cited
US2623147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |