US3209121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode proximity control
Assignee: Union Carbide Corp
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Filing: 1962-09-04
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Granted: 1965-09-28
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Expires: 1982-09-04
Abstract
No abstract record available.
Inventors
- 👤 August F Manz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:33
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/06; B23K9/073; B23K9/0735; B23K9/16; B23K9/173
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
PROCESS WHICH COMPRISES FEEDING AT A CONSTANT SPEED A METAL WIRE ELECTRODE THROUGH A CONTACT TUBE TOWARD METAL-WORK IN AN ARC WELDING CIRCUIT WITH AN ELECTRIC POWER SOURCE, HEATING AND MELTING THE END OF SUCH ELECTRODE ADJACENT THE ARC AS MOLTEN ELECTRODE METAL IS DEPOSIT ON THE WORK, PRODUCING AN ELECTRICAL SIGNAL ORIGINATING FROM THE VERY END OF SUCH ELECTRODE THAT IS RESPONSIVE TO THE RELATIVE POSITION OF SAID HEATED AND MELTED ELECTRODE END WITH RESPECT TO THAT OF THE CONTACT TUBE, AND MAINTAINING SUCH POSITION SUBSTANTIALLY CONSTANT BY CONTROLLING SUCH POSITION RESPONSIVE TO SAID SIGNAL WITHOUT ALTERING THE CONSTANT SPEED AT WHICH THE ELECTRODE IS SO FED TOWARD THE WORK, BY OBSERVING SUCH ELECTRODE END AS IT EMERGES FRON SUCH CONTACT TUBE DURING THE OPERATION OF THE ARC.
Claim 2
Dependent Claim
129 words
PROCESS WHICH COMPRISES FEEDING AT A CONSTANT SPEED A METAL WIRE ELECTRODE THROUGH A CONTACT TUBE TOWARD METAL-WORK IN AN ARC WELDING CIRCUIT WITH AN ELECTRIC POWER SOURCE, HEATING AND MELTING THE END OF SUCH ELECTRODE ADJACENT THE ARC AS MOLTEN ELECTRODE METAL IS DEPOSIT ON THE WORK, PRODUCING AN ELECTRICAL SIGNAL ORIGINATING FROM THE VERY END OF SUCH ELECTRODE THAT IS RESPONSIVE TO THE RELATIVE POSITION OF SAID HEATED AND MELTED ELECTRODE END WITH RESPECT TO THAT OF THE CONTACT TUBE, AND MAINTAINING SUCH POSITION SUBSTANTIALLY CONSTANT BY CONTROLLING SUCH POSITION RESPONSIVE TO SAID SIGNAL WITHOUT ALTERING THE CONSTANT SPEED AT WHICH THE ELECTRODE IS SO FED TOWARD THE WORK, BY OBSERVING SUCH ELECTRODE END AS IT EMERGES FRON SUCH CONTACT TUBE DURING THE OPERATION OF THE ARC.
References Cited (Backward Citations)
US2031288A
Cited
US2897341A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |