US2824818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding of metals having hot-short characteristics
Assignee: Individual
•
Filing: 1954-10-15
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Granted: 1958-02-25
•
Expires: 1974-10-15
Abstract
No abstract record available.
Inventors
- 👤 Oscar E Swenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:00
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3033
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A METHOD OF ARC WELDING METALS THAT HAVE THE CHARACTERISTIC OF BEING MORE BRITTLE AT ARC WELDING TEMPERATURES THAN AT NORMAL ROOM TEMPERATURE, COMPRISING THE STEPS OF PEENING THE EDGES TO BE WELDED AND AN AREA IMMEDIATELY ADJACENT TO SAID EDGES TO THE EXTENT NECESSARY TO PLACE COMPRESSION STRESSES IN THE METAL SUFFICIENT TO COMPENSATE FOR TENSILE STRESSES DEVELOPED DURING HEATING TO WELDING TEMPERATURE, COOLING SAID PEENED EDGES AND AREA TO A SUB-ZERO TEMPERATURE OF AT LEAST -40*F., ARC WELDING A SMALL INCREMENT OF WELD METAL BETWEEN SAID EDGES, REMOVING THE ACCUMULATED WELDING SLAG FROM THE DEPOSITED METAL, QUENCHING THE WELDED AREA AND THE AREA IMMEDIATELY ADJACENT THERETO TO A TEMPERATURE OF AT LEAST -40*F., AND REPEATING THE ABOVE SEQUENCE OF STEPS TO LAY DOWN SUCCESSIVE WELD INCREMENTS UNTIL SAID WELD IS COMPLETED.
Claim 2
Independent Claim
133 words
A METHOD OF ARC WELDING METALS THAT HAVE THE CHARACTERISTIC OF BEING MORE BRITTLE AT ARC WELDING TEMPERATURES THAN AT NORMAL ROOM TEMPERATURE, COMPRISING THE STEPS OF PEENING THE EDGES TO BE WELDED AND AN AREA IMMEDIATELY ADJACENT TO SAID EDGES TO THE EXTENT NECESSARY TO PLACE COMPRESSION STRESSES IN THE METAL SUFFICIENT TO COMPENSATE FOR TENSILE STRESSES DEVELOPED DURING HEATING TO WELDING TEMPERATURE, COOLING SAID PEENED EDGES AND AREA TO A SUB-ZERO TEMPERATURE OF AT LEAST -40*F., ARC WELDING A SMALL INCREMENT OF WELD METAL BETWEEN SAID EDGES, REMOVING THE ACCUMULATED WELDING SLAG FROM THE DEPOSITED METAL, QUENCHING THE WELDED AREA AND THE AREA IMMEDIATELY ADJACENT THERETO TO A TEMPERATURE OF AT LEAST -40*F., AND REPEATING THE ABOVE SEQUENCE OF STEPS TO LAY DOWN SUCCESSIVE WELD INCREMENTS UNTIL SAID WELD IS COMPLETED.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |