US3119009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding apparatus
Assignee: Weltronic Co
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Filing: 1961-07-13
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Granted: 1964-01-21
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Expires: 1981-07-13
Abstract
No abstract record available.
Inventors
- 👤 Richard S Zeller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:38
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/10; B25; B25J; B25J9/00; B25J9/10; B25J9/1005; B25J9/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
IN A WELDING APPARATUS FOR WELDING A WORKPIECE AND HAVING A WELDING ELECTRODE AND MEANS FOR MOVING THE ELECTRODE ALONG THE WORKPIECE, THE COMBINATION OF ELECTRODE POSITION DETECTING MEANS OPERABLE WHEN THE ELECTRODE HAS MOVED TO A PRESELECTED POSITION ALONG THE WORK, AN ELECTRON-DISCHARGE DEVICE HAVING AN INPUT CIRCUIT, A CAPACITOR SERIALLY INCLUDED IN SAID INPUT CIRCUIT, A FIRST VOLTAGE SOURCE, MEANS EFFECTIVE WHEN WELDING COMMENCES TO CONNECT SAID FIRST SOURCE ACROSS SAID CAPACITOR, A SECOND VOLTAGE SOURCE, A RESISTOR, AND MEANS CONTROLLED BY SAID DETECTING MEANS FOR CONNECTING SAID SECOND VOLTAGE SOURCE AND SAID RESISTOR ACROSS SAID CAPACITOR.
Claim 2
Dependent Claim
99 words
IN A WELDING APPARATUS FOR WELDING A WORKPIECE AND HAVING A WELDING ELECTRODE AND MEANS FOR MOVING THE ELECTRODE ALONG THE WORKPIECE, THE COMBINATION OF ELECTRODE POSITION DETECTING MEANS OPERABLE WHEN THE ELECTRODE HAS MOVED TO A PRESELECTED POSITION ALONG THE WORK, AN ELECTRON-DISCHARGE DEVICE HAVING AN INPUT CIRCUIT, A CAPACITOR SERIALLY INCLUDED IN SAID INPUT CIRCUIT, A FIRST VOLTAGE SOURCE, MEANS EFFECTIVE WHEN WELDING COMMENCES TO CONNECT SAID FIRST SOURCE ACROSS SAID CAPACITOR, A SECOND VOLTAGE SOURCE, A RESISTOR, AND MEANS CONTROLLED BY SAID DETECTING MEANS FOR CONNECTING SAID SECOND VOLTAGE SOURCE AND SAID RESISTOR ACROSS SAID CAPACITOR.
References Cited (Backward Citations)
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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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |