US2909642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means and method for deep flux arc welding
Assignee: Lincoln Electric Co
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Filing: 1956-11-13
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Granted: 1959-10-20
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Expires: 1976-11-13
Abstract
No abstract record available.
Inventors
- 👤 George G Landis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:00
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/18; B23K9/186; B23K35/00; B23K35/02; B23K35/0255; B23K35/0261; B23K35/0266
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A METHOD OF DEEP FLUX OR SUBMERGED ARC WELDING, COMPRISING: THE STEPS OF DEPOSITING A LAYER OF WELDING FLUX ON THE SURFACE OF A WORKPIECE AND ADVANCING AN ELECTRICALLY ENERGIZED ELECTRODE THROUGH SUCH LAYER OF FLUX WHILE MAINTAINING AN ARC BETWEEN THE ELECTRODE END AND THE WORKPIECE SO AS TO DEPOSIT A WELD BEAD; THE IMPROVEMENT WHICH COMPRISES: INTRODUCING INTO THE ARC SIMULTANEOUSLY WITH THE ELECTRODE AND INDEPENDENTLY OF THE WELDING FLUX
Claim 2
Independent Claim
72 words
A METHOD OF DEEP FLUX OR SUBMERGED ARC WELDING, COMPRISING: THE STEPS OF DEPOSITING A LAYER OF WELDING FLUX ON THE SURFACE OF A WORKPIECE AND ADVANCING AN ELECTRICALLY ENERGIZED ELECTRODE THROUGH SUCH LAYER OF FLUX WHILE MAINTAINING AN ARC BETWEEN THE ELECTRODE END AND THE WORKPIECE SO AS TO DEPOSIT A WELD BEAD; THE IMPROVEMENT WHICH COMPRISES: INTRODUCING INTO THE ARC SIMULTANEOUSLY WITH THE ELECTRODE AND INDEPENDENTLY OF THE WELDING FLUX
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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 |