Patent US3141950A successfully refreshed from Google Patents.
US3141950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding machine control equipment
Assignee: Weltronic Co
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Filing: 1958-01-28
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Granted: 1964-07-21
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Expires: 1978-01-28
Abstract
No abstract record available.
Inventors
- 👤 Wilbert A Chiasson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:55
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/241; B23K11/245; H; H05; H05B; H05B7/00; H05B7/02; H05B7/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN A CONTROL EQUIPMENT OF A WELDER HAVING A WELDING TRANSFORMER CONTROLLABLY ENERGIZABLE FROM A SOURCE OF ALTERNATING VOLTAGE, THE COMBINATION OF A PLURALITY OF INDIVIDUALLY ADJUSTABLE AND SEQUENTIALLY EFFECTIVE MEANS FOR CONTROLLING THE MAGNITUDE OF THE CURRENT SUPPLIED TO THE WELDING TRANSFORMER DURING THEIR INDIVIDUALLY EFFECTIVE PERIODS, A SINGLE PULSE PRODUCING MEANS COMMON OF ELECTRICAL PULSES, AND CONTROL MEANS INDIVIDUAL TO EACH OF SAID SEQUENTIALLY EFFECTIVE MEANS FOR PRODUCING A SERIES OF ELECTRICAL PULSES, AND CONTROL MEANS INDIVIDUAL TO EACH OF SAID SEQUENTIALLY EFFECTIVE MEANS AND EACH INCLUDING AN INDIVIDUAL COUNTING MEANS CONNECTED TO SAID SINGLE PULSE PRODUCING MEANS FOR COUNTING SAID ELECTRICAL PULSES AND EACH RESPONSIVE TO THE RECEIPT OF INDIVIDUALLY SELECT-
Claim 2
Dependent Claim
114 words
IN A CONTROL EQUIPMENT OF A WELDER HAVING A WELDING TRANSFORMER CONTROLLABLY ENERGIZABLE FROM A SOURCE OF ALTERNATING VOLTAGE, THE COMBINATION OF A PLURALITY OF INDIVIDUALLY ADJUSTABLE AND SEQUENTIALLY EFFECTIVE MEANS FOR CONTROLLING THE MAGNITUDE OF THE CURRENT SUPPLIED TO THE WELDING TRANSFORMER DURING THEIR INDIVIDUALLY EFFECTIVE PERIODS, A SINGLE PULSE PRODUCING MEANS COMMON OF ELECTRICAL PULSES, AND CONTROL MEANS INDIVIDUAL TO EACH OF SAID SEQUENTIALLY EFFECTIVE MEANS FOR PRODUCING A SERIES OF ELECTRICAL PULSES, AND CONTROL MEANS INDIVIDUAL TO EACH OF SAID SEQUENTIALLY EFFECTIVE MEANS AND EACH INCLUDING AN INDIVIDUAL COUNTING MEANS CONNECTED TO SAID SINGLE PULSE PRODUCING MEANS FOR COUNTING SAID ELECTRICAL PULSES AND EACH RESPONSIVE TO THE RECEIPT OF INDIVIDUALLY SELECT-
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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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |