US3238349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low current arc torch and power supply
Assignee: Union Carbide Corp
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Filing: 1963-09-05
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Granted: 1966-03-01
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Expires: 1983-09-05
Abstract
No abstract record available.
Inventors
- 👤 John E Anderson
- 👤 William J Runkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:36
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/29; B23K9/291; B23K9/06; B23K9/067; B23K9/0671
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
AN ARC TORCH COMPRISING A BARREL, A GAS DIRECTING NOZZLE SECURED TO THE BOTTOM OF SAID BARREL AND HAVING AN ARC CONSTRICTING ORIFICE, AN ELECTRODE IN SAID BARREL, MEANS FOR SUPPLYING ELECTRIC CURRENT TO SAID ELECTRODE, SAID ELECTRODE EXTENDING THROUGH THE BOTTOM OF SAID BARREL INTO SAID NOZZLE ADJACENT TO SAID ARC CONSTRICTING ORIFICE, SAID BARREL HAVING A BORE FORMING WITH SAID ELECTRODE AN ANNULAR PASSAGE THEREBETWEEN EXTENDING LONGITUDINALLY THEREOF, AN INSULATOR TUBE IN THE LOWER PORTION OF SAID BARREL FORMING A CENTERING GUIDE FOR THE LOWER PORTION OF SAID ELECTRODE, MEANS FOR SUPPLYING GAS TO SAID PASSAGE, SAID CENTERING GUIDE HAVING PASSAGES THERETHROUGH FROM SAID ANNULAR PASSAGE TO THE INTERIOR OF SAID NOZZLE.
Claim 2
Dependent Claim
114 words
AN ARC TORCH COMPRISING A BARREL, A GAS DIRECTING NOZZLE SECURED TO THE BOTTOM OF SAID BARREL AND HAVING AN ARC CONSTRICTING ORIFICE, AN ELECTRODE IN SAID BARREL, MEANS FOR SUPPLYING ELECTRIC CURRENT TO SAID ELECTRODE, SAID ELECTRODE EXTENDING THROUGH THE BOTTOM OF SAID BARREL INTO SAID NOZZLE ADJACENT TO SAID ARC CONSTRICTING ORIFICE, SAID BARREL HAVING A BORE FORMING WITH SAID ELECTRODE AN ANNULAR PASSAGE THEREBETWEEN EXTENDING LONGITUDINALLY THEREOF, AN INSULATOR TUBE IN THE LOWER PORTION OF SAID BARREL FORMING A CENTERING GUIDE FOR THE LOWER PORTION OF SAID ELECTRODE, MEANS FOR SUPPLYING GAS TO SAID PASSAGE, SAID CENTERING GUIDE HAVING PASSAGES THERETHROUGH FROM SAID ANNULAR PASSAGE TO THE INTERIOR OF SAID NOZZLE.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |