US2909648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallic vapor shielded electric arc welding
Assignee: Lincoln Electric Co
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Filing: 1956-06-29
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Granted: 1959-10-20
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Expires: 1976-06-29
Abstract
No abstract record available.
Inventors
- 👤 George G Landis
- 👤 John E Carroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:23
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/38; B23K35/02; B23K35/0255; B23K35/0261; B23K35/0272; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12757
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A METHOD OF ELECTRIC ARC WELDING A STEEL WORKPIECE COMPRISING ADVANCING AN ELECTRICALLY ENERGIZED STEEL ELECTRODE TOWARD THE WORKPIECE WHILE MAINTAINING AN ARC BETWEEN THE END OF THE ELECTRODE AND THE WORKPIECE, AND SIMULTANEOUSLY FEEDING ONE OR MORE METALS SELECTED FROM THE CLASS CONSISTING OF BISMUTH, COBALT, SILVER, TIN AND CADMIUM TO THE ARC IN AN AMOUNT OF BETWEEN 5 AND 10% OF THE WEIGHT OF THE STEEL ELECTRODE, SUCH METAL VAPOR PRODUCING METALS BEING INTRODUCED EXTERNALLY OF THE STEEL ELECTRODE.
Claim 2
Independent Claim
81 words
A METHOD OF ELECTRIC ARC WELDING A STEEL WORKPIECE COMPRISING ADVANCING AN ELECTRICALLY ENERGIZED STEEL ELECTRODE TOWARD THE WORKPIECE WHILE MAINTAINING AN ARC BETWEEN THE END OF THE ELECTRODE AND THE WORKPIECE, AND SIMULTANEOUSLY FEEDING ONE OR MORE METALS SELECTED FROM THE CLASS CONSISTING OF BISMUTH, COBALT, SILVER, TIN AND CADMIUM TO THE ARC IN AN AMOUNT OF BETWEEN 5 AND 10% OF THE WEIGHT OF THE STEEL ELECTRODE, SUCH METAL VAPOR PRODUCING METALS BEING INTRODUCED EXTERNALLY OF THE STEEL ELECTRODE.
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) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |