US3213262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shielded arc welding method and apparatus
Assignee: Trefileries Et Ateliers De Commercy
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Filing: 1964-04-20
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Granted: 1965-10-19
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Expires: 1984-04-20
Abstract
No abstract record available.
Inventors
- 👤 Marchand Ferdinand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:33
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/12; B23K9/124; B23K9/125; B23K9/06; B23K9/073; B23K9/0731
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
APPARATUS FOR SHIELDED ARC WELDING WITH A FUSIBLE ELECTRODE, SAID APPARATUS COMPRISING WELDING MEANS, A SOURCE OF A.C. VOLTAGE COUPLED TO SAID MEANS, RECTIFYING MEANS COUPLED TO SAID SOURCE TO PROVIDE A WELDING ARC VOLTAGE, DRIVE MEANS FOR DRIVING SAID ELECTRODE THROUGH SAID WELDING MEANS AT A CONTROLLABLE RATE OF SPEED, THERE BEING A DETERMINABLE SPEED AT WHICH THE ELECTRODE IS MOST EFFECTIVELY EMPLOYED, ACTUATION MEANS COUPLED TO SAID DRIVE MEANS FOR CONTROLLING THE LATTER TO DRIVE SAID ELECTRODE THROUGH SAID WELDING MEANS, A FIRST VARIABLE CONTROL MEANS COUPLED BETWEEN SAID RECTIFYING MEANS AND ACTUATION MEANS TO PROVIDE A FIRST CONTROL VOLTAGE WHICH IS RELATED TO THE DIAMETER OF THE ELECTRODE AND TO A FUNCTION RELATED TO THE DIAMETER OF THE ELECTRODE AND TO A FUNCTION MEANS COUPLED TO SAID ACTUATION MEANS AND ADAPTED TO PROVIDE A SELECTED SECOND CONTROL VOLTAGE WHICH IS RELATED TO SAID DIAMETER AND IS SUBSTANTIALLY INDEPENDENT OF SAID WELDING ARC VOLTAGE AND IS SUBSTANTIALLY CONSTANT, SAID FIRST AND SAID SECOND CONTROL MEANS BEING CONSTITUED BY SWITCHES COMPRISING A PLURALITY OF TAPS CORRESPONDING TO ELECTRODE DIAMETERS SAID ACTUATION MEANS INCLUDING MEANS TO APPLY A VOLTAGE CORRESPONDING TO THE
Claim 2
Dependent Claim
192 words
APPARATUS FOR SHIELDED ARC WELDING WITH A FUSIBLE ELECTRODE, SAID APPARATUS COMPRISING WELDING MEANS, A SOURCE OF A.C. VOLTAGE COUPLED TO SAID MEANS, RECTIFYING MEANS COUPLED TO SAID SOURCE TO PROVIDE A WELDING ARC VOLTAGE, DRIVE MEANS FOR DRIVING SAID ELECTRODE THROUGH SAID WELDING MEANS AT A CONTROLLABLE RATE OF SPEED, THERE BEING A DETERMINABLE SPEED AT WHICH THE ELECTRODE IS MOST EFFECTIVELY EMPLOYED, ACTUATION MEANS COUPLED TO SAID DRIVE MEANS FOR CONTROLLING THE LATTER TO DRIVE SAID ELECTRODE THROUGH SAID WELDING MEANS, A FIRST VARIABLE CONTROL MEANS COUPLED BETWEEN SAID RECTIFYING MEANS AND ACTUATION MEANS TO PROVIDE A FIRST CONTROL VOLTAGE WHICH IS RELATED TO THE DIAMETER OF THE ELECTRODE AND TO A FUNCTION RELATED TO THE DIAMETER OF THE ELECTRODE AND TO A FUNCTION MEANS COUPLED TO SAID ACTUATION MEANS AND ADAPTED TO PROVIDE A SELECTED SECOND CONTROL VOLTAGE WHICH IS RELATED TO SAID DIAMETER AND IS SUBSTANTIALLY INDEPENDENT OF SAID WELDING ARC VOLTAGE AND IS SUBSTANTIALLY CONSTANT, SAID FIRST AND SAID SECOND CONTROL MEANS BEING CONSTITUED BY SWITCHES COMPRISING A PLURALITY OF TAPS CORRESPONDING TO ELECTRODE DIAMETERS SAID ACTUATION MEANS INCLUDING MEANS TO APPLY A VOLTAGE CORRESPONDING TO THE
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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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |