Patent US3270178A successfully refreshed from Google Patents.
US3270178A
Expired / Lapsed
US
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Welding nozzle
Assignee: ALLOY RODS Inc KAREN LANE & WILSON AVE A CORP OF
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Filing: 1965-08-03
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Granted: 1966-08-30
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Expires: 1985-08-03
Abstract
No abstract record available.
Inventors
- 👤 Robert J Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:22
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/29; B23K9/291
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN AN ARC WELDING APPARATUS, A WELDING NOZZLE HAVING AN END AND BEING FORMED WITH A PASSAGE TERMINATING AT SAID END AND ADAPTED TO CONDUCT AN ELECTRODE TO AN ARC, SAID NOZZLE HAVING A PERIPHERAL GROOVE EXTENDING GENERALLY LONGITUDINALLY OF THE NOZZLE AND SAID GROOVE BEING CURVED LONGITUDINALLY AND TERMINATING AT SAID END ADJACENT SAID PASSAGE, AND MEANS FOR SUPPLYING A SHIELDING GAS TO THE GROOVE WITH THE GAS FLOWING WITHIN THE GROOVE AND FOLLOWING THE CURVED CONTOUR OF THE GROOVE TO THE ARC.
Claim 2
Dependent Claim
84 words
IN AN ARC WELDING APPARATUS, A WELDING NOZZLE HAVING AN END AND BEING FORMED WITH A PASSAGE TERMINATING AT SAID END AND ADAPTED TO CONDUCT AN ELECTRODE TO AN ARC, SAID NOZZLE HAVING A PERIPHERAL GROOVE EXTENDING GENERALLY LONGITUDINALLY OF THE NOZZLE AND SAID GROOVE BEING CURVED LONGITUDINALLY AND TERMINATING AT SAID END ADJACENT SAID PASSAGE, AND MEANS FOR SUPPLYING A SHIELDING GAS TO THE GROOVE WITH THE GAS FLOWING WITHIN THE GROOVE AND FOLLOWING THE CURVED CONTOUR OF THE GROOVE TO THE ARC.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |