Patent FR541398A successfully refreshed from Google Patents.
US3309243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-shielded arc welding of 18% nickel steel
Assignee: Huntington Alloys Corp
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Filing: 1964-03-26
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Granted: 1967-03-14
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Expires: 1984-03-26
Abstract
No abstract record available.
Inventors
- 👤 Donald A Corrigan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:02
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/10; C22C38/105; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; B23K35/3066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
THE METHOD FOR JOINING BY WELDING BASE MEMBERS MADE OF A MARAGING STEEL COMPOSITION CONTAINING NOMINALLY ABOUT 18% NICKEL, ABOUT 8.5% COBALT, ABOUT 3.2% MOLYBDENUM, ABOUT 0.1% ALUMINUM, ABOUT 0.2% TITANIUM AND THE BALANCE ESSENTIALLY IRON WHICH COMPRISES MELTING IN AN INERT GAS-SHIELDED ARC, A FILLER MATERIAL CONSISTING ESSENTIALLY OF ABOUT 17.5% TO 18.5% NICKEL, ABOUT 1% TO ABOUT 5% MOLYBDENUM, AT LEAST ABOUT 0.35% TO ABOUT 1% TITANIUM UP TO ABOUT 1.2% COBALT, UP TO ABOUT 0.5% ALUMINUM, NOT MORE THAN 0.1% CARBON AND THE BALANCE ESSENTIALLY IRON TO FORM A WELD DEPOSIT JOINING SAID MEMBERS AND SUBJECTING THE WELD ASSEMBLY TO MARAGING HEAT TREATMENT AT ABOUT 850*F. TO ABOUT ABOUT 1000*F. FOR UP TO ABOUT THREE HOURS TO PROVIDE A WELD ASSEMBLY HAVING A HIGH COMBINATION OF STRENGTH AND TOUGHNESS WHEREIN THE WELD HAS ESSENTIALLY ABOUT 90% OF THE STRENGTH OF THE BASE MEMBERS.
Claim 2
Independent Claim
146 words
THE METHOD FOR JOINING BY WELDING BASE MEMBERS MADE OF A MARAGING STEEL COMPOSITION CONTAINING NOMINALLY ABOUT 18% NICKEL, ABOUT 8.5% COBALT, ABOUT 3.2% MOLYBDENUM, ABOUT 0.1% ALUMINUM, ABOUT 0.2% TITANIUM AND THE BALANCE ESSENTIALLY IRON WHICH COMPRISES MELTING IN AN INERT GAS-SHIELDED ARC, A FILLER MATERIAL CONSISTING ESSENTIALLY OF ABOUT 17.5% TO 18.5% NICKEL, ABOUT 1% TO ABOUT 5% MOLYBDENUM, AT LEAST ABOUT 0.35% TO ABOUT 1% TITANIUM UP TO ABOUT 1.2% COBALT, UP TO ABOUT 0.5% ALUMINUM, NOT MORE THAN 0.1% CARBON AND THE BALANCE ESSENTIALLY IRON TO FORM A WELD DEPOSIT JOINING SAID MEMBERS AND SUBJECTING THE WELD ASSEMBLY TO MARAGING HEAT TREATMENT AT ABOUT 850*F. TO ABOUT ABOUT 1000*F. FOR UP TO ABOUT THREE HOURS TO PROVIDE A WELD ASSEMBLY HAVING A HIGH COMBINATION OF STRENGTH AND TOUGHNESS WHEREIN THE WELD HAS ESSENTIALLY ABOUT 90% OF THE STRENGTH OF THE BASE MEMBERS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |