US3277269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for arc welding
Assignee: Weltronic Co
•
Filing: 1964-02-10
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Granted: 1966-10-04
•
Expires: 1984-02-10
Abstract
No abstract record available.
Inventors
- 👤 Richard S Zeller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:57
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/007
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
68 words
THE METHOD OF ACCURATELY CONTROLLING THE AMOUNT OF FILLER WIRE INTRODUCED INTO A WELD PUDDLE DURING AN ARC SPOT WELDING OPERATION WHICH COMPRISES THE STEPS OF ELECTRICALLY SENSING AN ARCUATE INITIAL POSITION OF THE TIP OF THE FILLER WIRE, ADVANCING THE FILLER WIRE INTO THE WELD PUDDLE AT A CONTROLLED RATE FOR A PRESELECTED PERIOD OF TIME, AND RETRACTING SAID FILLER WIRE AT THE END OF THAT TIME.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |