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US2879376A
Expired / Lapsed
US
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Method of welding clad metal plates
Assignee: Lukens Steel Co
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Filing: 1958-04-10
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Granted: 1959-03-24
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Expires: 1978-04-10
Abstract
No abstract record available.
Inventors
- 👤 Anton I Petrovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:36
CPC Classifications
B; B23; B23K; B23K33/00; B23K33/004; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; B23K35/3066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
THE METHOD OF WELDING TOGETHER TWO CLAD METAL PLATES, EACH OF WHICH HAS A BACKING LAYER OF CARBON STEEL AND A CLADDING LAYER CONTAINING APPROXIMATELY 65% NICKEL, 28% MOLYBDENUM, AND 6% IRON, WHICH COMPRISES PLACING THE PLATES IN ABUTTING EDGE TO EDGE RELATION, THE ADJACENT PROTIONS OF SAID BACKING LAYERS BEING INCLINED OUTWARDLY IN OPPOSITE DIRECTIONS TO FORM A WELD GROOVE IN THE ABUTTING PORTIONS OF THE BACKING LAYERS, FORMING A LOW HYDROGEN STEEL WELD IN SAID GROOVE BY A COATED LOW HYDROGEN ELECTRODE CONTAINING .06 TO .12% CARBON, .40 TO .71% MANGANESE, .35 TO .66% SILICON, .46 TO .60% MOLYBDENUM, 1.00 TO 3.30% NICKEL, 1.1, TO 2.26% CHROMIUM, .035% MAXIMUM PHOSPHORUS, .035% MAXIMUM SULPHUR, AND THE BALANCE ESSENTIALLY IRON, FORMING A WELD GROOVE IN THE CLADDING LAYER AT THE ABUTTING EDGES OF THE PLATES, DEPOSITING A STAINLESS STEEL BEAD IN THE BOTTOM OF SAID SECOND GROOVE, AND USING A PLURALITY OF COVERING BEADS TO COVER SAID STAINLESS STEEL BEAD.
Claim 2
Independent Claim
160 words
THE METHOD OF WELDING TOGETHER TWO CLAD METAL PLATES, EACH OF WHICH HAS A BACKING LAYER OF CARBON STEEL AND A CLADDING LAYER CONTAINING APPROXIMATELY 65% NICKEL, 28% MOLYBDENUM, AND 6% IRON, WHICH COMPRISES PLACING THE PLATES IN ABUTTING EDGE TO EDGE RELATION, THE ADJACENT PROTIONS OF SAID BACKING LAYERS BEING INCLINED OUTWARDLY IN OPPOSITE DIRECTIONS TO FORM A WELD GROOVE IN THE ABUTTING PORTIONS OF THE BACKING LAYERS, FORMING A LOW HYDROGEN STEEL WELD IN SAID GROOVE BY A COATED LOW HYDROGEN ELECTRODE CONTAINING .06 TO .12% CARBON, .40 TO .71% MANGANESE, .35 TO .66% SILICON, .46 TO .60% MOLYBDENUM, 1.00 TO 3.30% NICKEL, 1.1, TO 2.26% CHROMIUM, .035% MAXIMUM PHOSPHORUS, .035% MAXIMUM SULPHUR, AND THE BALANCE ESSENTIALLY IRON, FORMING A WELD GROOVE IN THE CLADDING LAYER AT THE ABUTTING EDGES OF THE PLATES, DEPOSITING A STAINLESS STEEL BEAD IN THE BOTTOM OF SAID SECOND GROOVE, AND USING A PLURALITY OF COVERING BEADS TO COVER SAID STAINLESS STEEL BEAD.
References Cited (Backward Citations)
US1812123A
Cited
US2416379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |