US3215810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuously rotating dial feed welder
Assignee: NATIONAL ELECTRIC WELDING MACHINES CO
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Filing: 1962-05-28
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Granted: 1965-11-02
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Expires: 1982-05-28
Abstract
No abstract record available.
Inventors
- 👤 Harold J Lange
- 👤 Morley John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:48
CPC Classifications
B; B23; B23K; B23K37/00; B23K37/04; B23K37/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
IN AN ELECTRIC WELDING MACHINE, THE COMBINATION COMPRISING: A TABLE AND MEANS MOUNTING AND DRIVING SAME FOR EFFECTING ROTATION THEREOF; A PLURALITY OF WORK STATIONS ARRANGED CIRCUMFERENTIALLY AROUND SAID TABLE; AT LEAST TWO GROUPS OF PAIRS OF WELDING ELECTRODES, EACH PAIR OF THEREOF BEING ARRANGED IN OPERATIVE ASSOCIATION WITH A RESPECTIVE ONE OF SAID WORK STATIONS; AT LEAST TWO WELDING TRANSFORMERS; MEANS CONNECTING ONE GROUP OF PAIRS OF ELECTRODES FOR SIMULTANEOUS APPLICATION OF VOLTAGE THERETO BY THE SECONDARY CIRCUIT OF ONE OF SAID TRANSFORMERS AND MEANS CONNECTING THE OTHER GROUP OF PAIRS OF ELECTRODES FOR SIMULTANEOUS APPLICATION OF VOLTAGE THERETO BY THE SECONDARY CIRCUIT OF THE OTHER OF SAID TRANSFORMERS, THE RESPECTIVE PAIR OF ELECTRODES OF SAID ONE GROUP BEING POSITIONED ALTERNATELY ON SAID TABLE WITH THE RESPECTIVE PAIRS OF ELECTRODES OF SAID OTHER GROUP; SUPPLY MEANS INCLUDING CURRENT TRANSFER DEVICE IN THE PRIMARY WINDINGS OF SAID TRANSFORMERS FOR TRANSFERRING CURRENT BETWEEN RELATIVELY MOVING PARTS FOR ENERGIZING THE PRIMARY WINDINGS OF SAID TRANSFORMERS IN A PREDETERMINED, ALTERNATE, PATTERN CO-ORDINATED WITH THE OPENING AND CLOSING OF SAID PAIRS OF ELECTRODES WITH RESPECT TO EACH OTHER.
Claim 2
Dependent Claim
184 words
IN AN ELECTRIC WELDING MACHINE, THE COMBINATION COMPRISING: A TABLE AND MEANS MOUNTING AND DRIVING SAME FOR EFFECTING ROTATION THEREOF; A PLURALITY OF WORK STATIONS ARRANGED CIRCUMFERENTIALLY AROUND SAID TABLE; AT LEAST TWO GROUPS OF PAIRS OF WELDING ELECTRODES, EACH PAIR OF THEREOF BEING ARRANGED IN OPERATIVE ASSOCIATION WITH A RESPECTIVE ONE OF SAID WORK STATIONS; AT LEAST TWO WELDING TRANSFORMERS; MEANS CONNECTING ONE GROUP OF PAIRS OF ELECTRODES FOR SIMULTANEOUS APPLICATION OF VOLTAGE THERETO BY THE SECONDARY CIRCUIT OF ONE OF SAID TRANSFORMERS AND MEANS CONNECTING THE OTHER GROUP OF PAIRS OF ELECTRODES FOR SIMULTANEOUS APPLICATION OF VOLTAGE THERETO BY THE SECONDARY CIRCUIT OF THE OTHER OF SAID TRANSFORMERS, THE RESPECTIVE PAIR OF ELECTRODES OF SAID ONE GROUP BEING POSITIONED ALTERNATELY ON SAID TABLE WITH THE RESPECTIVE PAIRS OF ELECTRODES OF SAID OTHER GROUP; SUPPLY MEANS INCLUDING CURRENT TRANSFER DEVICE IN THE PRIMARY WINDINGS OF SAID TRANSFORMERS FOR TRANSFERRING CURRENT BETWEEN RELATIVELY MOVING PARTS FOR ENERGIZING THE PRIMARY WINDINGS OF SAID TRANSFORMERS IN A PREDETERMINED, ALTERNATE, PATTERN CO-ORDINATED WITH THE OPENING AND CLOSING OF SAID PAIRS OF ELECTRODES WITH RESPECT TO EACH OTHER.
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |