Patent US3351734A successfully refreshed from Google Patents.
US3351734A
Expired / Lapsed
US
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Electric arc working for welding one side of two pieces of steel plates
Assignee: Kobe Steel Ltd
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Filing: 1966-11-14
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Granted: 1967-11-07
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Expires: 1986-11-14
Abstract
No abstract record available.
Inventors
- 👤 Arikawa Masayasu
- 👤 Okuda Naoki
- 👤 Kano Motomi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:11
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A METHOD OF ELECTRIC ARC WELDING FROM ONLY ONE SIDE OF TWO ADJACENT STEEL PLATES TO BE JOINED TOGETHER IN ORDER TO FORM A RIPPLED BEAD ON THE OTHER SIDE OF SAID STEEL PLATES, COMPRISING PLACING A COPPER BACKING PLATE SUPPORTING A GRANULAR WELDING FLUX CONTAINING IRON POWDER IN AN AMOUNT OF FROM 10 TO 75% BY WEIGHT AGAINST THE OTHER SIDE OF SAID PLATES UNDERNEATH THE ADJACENT EDGES OF THE PLATES, AND THEN ELECTRIC ARC WELDING THE STEEL PLATES TOGETHER AT SAID ADJACETN EGES BY MOVING AN ELECTRIC ARC ALONG SAID EDGES FROM ONLY THE ONE SIDE THEREOF.
Claim 2
Independent Claim
99 words
A METHOD OF ELECTRIC ARC WELDING FROM ONLY ONE SIDE OF TWO ADJACENT STEEL PLATES TO BE JOINED TOGETHER IN ORDER TO FORM A RIPPLED BEAD ON THE OTHER SIDE OF SAID STEEL PLATES, COMPRISING PLACING A COPPER BACKING PLATE SUPPORTING A GRANULAR WELDING FLUX CONTAINING IRON POWDER IN AN AMOUNT OF FROM 10 TO 75% BY WEIGHT AGAINST THE OTHER SIDE OF SAID PLATES UNDERNEATH THE ADJACENT EDGES OF THE PLATES, AND THEN ELECTRIC ARC WELDING THE STEEL PLATES TOGETHER AT SAID ADJACETN EGES BY MOVING AN ELECTRIC ARC ALONG SAID EDGES FROM ONLY THE ONE SIDE THEREOF.
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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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |