Patent US3139508A successfully refreshed from Google Patents.
US3139508A
Expired / Lapsed
US
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Gas shielded electric arc welding
Assignee: Union Carbide Corp
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Filing: 1962-10-12
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Granted: 1964-06-30
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Expires: 1982-10-12
Abstract
No abstract record available.
Inventors
- 👤 Norman D Freeman
- 👤 Frank T Stanchus
- 👤 Robert T Telford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:55
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; B23K35/3066; B23K35/38; B23K35/383
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A METHOD OF ALL-POSITION WELDING A FERROUS METAL WORKPIECE COMPRISED BY WEIGHT 0.30 PERCENT MAXIMUM CARBON, 0.10 PERCENT TO 1.50 PERCENT MANGANESE, 0.15 PERCENT TO 0.70 PERCENT SILICON, 0.40 PERCENT TO 1.80 PERCENT CHROMIUM, 3.25 PERCENT MAXIMUM NICKEL, 0.15 TO 0.60 PERCENT MOLYBDENUM THE REMAINDER BEING SUBSTANTIALLY IRON, SAID METHOD COMPRISING ESTABLISHING AN ELECTRIC ARC BETWEEN SAID FERROUS METAL WORKPIECE AND A CONSUMABLE FERROUS ELECTRODE CONTAINING BY WEIGHT 0.13 PERCENT MAXIMUM CARBON, 1.00 PERCENT TO 2.50 PERCENT MANGANESE, 0.10 PERCENT TO 0.75 PERCENT SILICON, 0.80 PERCENT TO 3.75 PERCENT NICKEL, 1.50 PERCENT MAXIMUM CHROMIUM, 0.60 PERCENT MAXIMUM COPPER, 0.20 PERCENT MAXIMUM VANADIUM, 1.25 PERCENT MAX. MOLYBDENUM, 0.025 PERCENT MAXIMUM SULPHUR AND 0.025 PERCENT MAXIMUM PHOSPHORUS, SHIELDING SAID ARC AND WELD PUDDLE FOUND IN SAID WORKPIECE WITH A STREAM OF FROM 40 PERCENT TO ABOUT 98 PERCENT HELIUM, 1 PERCENT TO ABOUT 5 PERCENT OXYGEN, AND 0 TO ABOUT 60 PERCENT ARGON GAS.
Claim 2
Independent Claim
152 words
A METHOD OF ALL-POSITION WELDING A FERROUS METAL WORKPIECE COMPRISED BY WEIGHT 0.30 PERCENT MAXIMUM CARBON, 0.10 PERCENT TO 1.50 PERCENT MANGANESE, 0.15 PERCENT TO 0.70 PERCENT SILICON, 0.40 PERCENT TO 1.80 PERCENT CHROMIUM, 3.25 PERCENT MAXIMUM NICKEL, 0.15 TO 0.60 PERCENT MOLYBDENUM THE REMAINDER BEING SUBSTANTIALLY IRON, SAID METHOD COMPRISING ESTABLISHING AN ELECTRIC ARC BETWEEN SAID FERROUS METAL WORKPIECE AND A CONSUMABLE FERROUS ELECTRODE CONTAINING BY WEIGHT 0.13 PERCENT MAXIMUM CARBON, 1.00 PERCENT TO 2.50 PERCENT MANGANESE, 0.10 PERCENT TO 0.75 PERCENT SILICON, 0.80 PERCENT TO 3.75 PERCENT NICKEL, 1.50 PERCENT MAXIMUM CHROMIUM, 0.60 PERCENT MAXIMUM COPPER, 0.20 PERCENT MAXIMUM VANADIUM, 1.25 PERCENT MAX. MOLYBDENUM, 0.025 PERCENT MAXIMUM SULPHUR AND 0.025 PERCENT MAXIMUM PHOSPHORUS, SHIELDING SAID ARC AND WELD PUDDLE FOUND IN SAID WORKPIECE WITH A STREAM OF FROM 40 PERCENT TO ABOUT 98 PERCENT HELIUM, 1 PERCENT TO ABOUT 5 PERCENT OXYGEN, AND 0 TO ABOUT 60 PERCENT ARGON GAS.
References Cited (Backward Citations)
US2958756A
Cited
US2810818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |