US3279669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode guide means
Assignee: Bernard Welding Equipment Co
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Filing: 1964-07-07
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Granted: 1966-10-18
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Expires: 1984-07-07
Abstract
No abstract record available.
Inventors
- 👤 Arthur A Bernard
- 👤 Richard A Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:05
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/12; B23K9/133; B23K9/1336
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
142 words
AN ARC WELDING MACHINE IN WHICH CONSUMABLE WIRE ELECTRODE IS WITHDRAWN FROM A SOURCE AND PUSHED THROUGH A CONDUIT TO THE WELDING ARC BY A POWER-DRIVEN PAIR OF OPPOSED FEED ROLLS, THE COMBINATION WITH SAID PAIR OF FEED ROLLS OF ELONGATE MEMBER HAVING A LONGITUDINAL BORE AND A PAIR OF OPPOSED, SUBSTANTIALLY ARCUATE RECESSES INTERSECTING SAID LONGITUDINAL BORE, SAID RECESSES BEING ADAPTED TO ACCOMMODATE SAID FEED ROLLS SO AS TO PERMIT SAID FEED ROLLS TO ENGAGE AND DRIVE SAID ELECTRODE, SAID FEED ROLLS COOPERATING WITH SAID LONGITUDINAL BORE OF SAID ELONGATE MEMBER TO DEFINED AN EFFECTIVELY CONTINUOUS BORE EXTENDING FORM A POINT ON THE ENTRANCE SIDE OF SAID FEED ROLLS, THROUGH SAID FEED ROLLS AND INTO SAID CONDUIT, WHEREBY BUCKLING AND KINKING OF SAID ELECTRODE BETWEEN SAID FEED ROLLS AND IN THE SPACE BETWEEN SAID FEED ROLLS AND SAID CONDUIT IS PREVENTED.
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |