US3197604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for welding
Assignee: Union Tank Car Co
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Filing: 1962-04-04
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Granted: 1965-07-27
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Expires: 1982-04-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank H Turbyville
- 👤 Floyd Columbus
- 👤 Merven N Pfeiffer
- 👤 Verbeek Clarence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:33
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/18; B23K9/02; B23K9/035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
AN APPARATUS FOW WELDING THE EDGES OF METAL PLATES TOGETHER COMPRISING MEANS TO HOLD THE EDGES OF SAID METALA PLATES IN CLOSE PROXIMITY TO FORM A JOINT THEREBETWEEN, A FIRST ARC WELDING MEANS HAVING A FIRST ARC WELDING ELECTRODE, A SECOND ARE WELDING MEANS HAVING A SECOND ARC WELDING ELECTRODE, MEANS TO MOVE SAID FIRST AND SECOND ARC WELDING ELECTRODES IN TANDEM ALONG SAID JOINT ON ONE SIDE OF SAID METAL PLATES TO FORM A WELD BEAD EXTENDING THROUGH SAID JOINT, SAID FIRST AND SECOND ARC WELDING MEANS BEING AN ALTERNATING CURRENT ARC WELDING MEANS AND A DIRECT CURRENT ARC WELDING MEANS, RESPECTIVELY, SAID ALTERNATING CURRENT ARC WELDING MEANS BEING ADAPTED TO MAINTAIN A SUBSTANTIALLY CONSTANT ARC GAP BETWEEN THE WELD BEAD AND SAID FIRST ELECTRODE.
Claim 2
Independent Claim
126 words
AN APPARATUS FOW WELDING THE EDGES OF METAL PLATES TOGETHER COMPRISING MEANS TO HOLD THE EDGES OF SAID METALA PLATES IN CLOSE PROXIMITY TO FORM A JOINT THEREBETWEEN, A FIRST ARC WELDING MEANS HAVING A FIRST ARC WELDING ELECTRODE, A SECOND ARE WELDING MEANS HAVING A SECOND ARC WELDING ELECTRODE, MEANS TO MOVE SAID FIRST AND SECOND ARC WELDING ELECTRODES IN TANDEM ALONG SAID JOINT ON ONE SIDE OF SAID METAL PLATES TO FORM A WELD BEAD EXTENDING THROUGH SAID JOINT, SAID FIRST AND SECOND ARC WELDING MEANS BEING AN ALTERNATING CURRENT ARC WELDING MEANS AND A DIRECT CURRENT ARC WELDING MEANS, RESPECTIVELY, SAID ALTERNATING CURRENT ARC WELDING MEANS BEING ADAPTED TO MAINTAIN A SUBSTANTIALLY CONSTANT ARC GAP BETWEEN THE WELD BEAD AND SAID FIRST ELECTRODE.
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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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |