US3229068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical welding machine
Assignee: Individual
•
Filing: 1964-08-04
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Granted: 1966-01-11
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Expires: 1984-08-04
Abstract
No abstract record available.
Inventors
- 👤 Hasegawa Mitsuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:06
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/038
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A WELDING MACHINE FOR WELDING TOGETHER WORK PIECES ALONG A GENERALLY UPWARDLY DIRECTED SEAM WHICH INCLUDES A WELDING TORCH HAVING A PASSAGE EXTENDING THERETHROUGH, AND MEANS FOR FEEDING A WELDING ELECTRODE THROUGH SAID PASSAGE AND INTO CONDUCTIVE CONTACT WITH THE WORK PIECES, THE COMBINATION OF A LEAKAGE PREVENTION MEMBER CONNECTED WITH SAID TORCH, AND MEANS CONNECTED WITH SAID LEAKAGE PREVENTION MEMBER AND SAID TORCH FOR SIMULTANEOUSLY MOVING THEM ALONG SAID SEAM, SAID MEANS BEING ADAPTED TO HOLD SAID LEAKAGE PREVENTION MEMBER AGAINST THE WORK PIECES IN FRONT OF SAID SEAM TO PREVENT THE FLOW OF MOLTEN METAL DURING THE COURSE OF WELDING, SAID LEAKAGE PREVENTION MEMBER BEING PROVIDED WITH A PASSAGE FOR DIRECTING A SHIELDING GAS INTO THE SEAM AND OVER THE MOLTEN ELECTRODE.
Claim 2
Dependent Claim
125 words
IN A WELDING MACHINE FOR WELDING TOGETHER WORK PIECES ALONG A GENERALLY UPWARDLY DIRECTED SEAM WHICH INCLUDES A WELDING TORCH HAVING A PASSAGE EXTENDING THERETHROUGH, AND MEANS FOR FEEDING A WELDING ELECTRODE THROUGH SAID PASSAGE AND INTO CONDUCTIVE CONTACT WITH THE WORK PIECES, THE COMBINATION OF A LEAKAGE PREVENTION MEMBER CONNECTED WITH SAID TORCH, AND MEANS CONNECTED WITH SAID LEAKAGE PREVENTION MEMBER AND SAID TORCH FOR SIMULTANEOUSLY MOVING THEM ALONG SAID SEAM, SAID MEANS BEING ADAPTED TO HOLD SAID LEAKAGE PREVENTION MEMBER AGAINST THE WORK PIECES IN FRONT OF SAID SEAM TO PREVENT THE FLOW OF MOLTEN METAL DURING THE COURSE OF WELDING, SAID LEAKAGE PREVENTION MEMBER BEING PROVIDED WITH A PASSAGE FOR DIRECTING A SHIELDING GAS INTO THE SEAM AND OVER THE MOLTEN ELECTRODE.
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |