Patent US3270179A successfully refreshed from Google Patents.
US3270179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding nozzle having dual and concentric gas shielding
Assignee: ALLOY RODS Inc KAREN LANE & WILSON AVE A CORP OF
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Filing: 1965-11-10
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Granted: 1966-08-30
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Expires: 1985-11-10
Abstract
No abstract record available.
Inventors
- 👤 John A Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:04
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/16; B23K9/173
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
AN ARC WELDING NOZZLE HAVING A NOSE, SAID NOSE HAVING AN OUTER END AND ALSO HAVING A PASSAGE EXTENDING THERETHROUGH SO THAT AN ELECTRODE CAN PASS THROUGH SAID NOSE AND EXTEND FROM SAID NOSE END FOR BEING CONSUMED BY AN ARC, SAID NOSE BEING TAPERED SO AS TO CONVERGE TOWARD SAID END, A CONTACT TUBE EXTENDING THROUGH SAID PASSAGE AND EXTENDING AXIALLY BEYOND SAID NOSE END, AND MEANS DEFINING A PAIR OF CONCENTRIC GAS OPENINGS AROUND SAID TUBE FOR DIRECTING SHIELDING GAS TOWARD SAID NOSE END, THE RADIALLY OUTER OPENING ALSO BEING SPACED AXIALLY A DISTANCE FARTHER FROM SAID NOSE END THAN THE INNER OPENING, SAID INNER OPENING BEING DEFINED BY A SPACE BETWEEN SAID TUBE AND SAID NOSE, AND SAID TUBE BEING ADAPTED TO RECEIVE SAID ELECTRODE FOR MOVEMENT THERETHROUGH.
Claim 2
Dependent Claim
131 words
AN ARC WELDING NOZZLE HAVING A NOSE, SAID NOSE HAVING AN OUTER END AND ALSO HAVING A PASSAGE EXTENDING THERETHROUGH SO THAT AN ELECTRODE CAN PASS THROUGH SAID NOSE AND EXTEND FROM SAID NOSE END FOR BEING CONSUMED BY AN ARC, SAID NOSE BEING TAPERED SO AS TO CONVERGE TOWARD SAID END, A CONTACT TUBE EXTENDING THROUGH SAID PASSAGE AND EXTENDING AXIALLY BEYOND SAID NOSE END, AND MEANS DEFINING A PAIR OF CONCENTRIC GAS OPENINGS AROUND SAID TUBE FOR DIRECTING SHIELDING GAS TOWARD SAID NOSE END, THE RADIALLY OUTER OPENING ALSO BEING SPACED AXIALLY A DISTANCE FARTHER FROM SAID NOSE END THAN THE INNER OPENING, SAID INNER OPENING BEING DEFINED BY A SPACE BETWEEN SAID TUBE AND SAID NOSE, AND SAID TUBE BEING ADAPTED TO RECEIVE SAID ELECTRODE FOR MOVEMENT THERETHROUGH.
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 |