Patent US2331811A successfully refreshed from Google Patents.
Patent US3170082A successfully refreshed from Google Patents.
US3170082A
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Method for regulating of the position of the electrodes in an electrode furnace and arrangement for carrying out the method
Assignee: ABB Norden Holding AB
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Filing: 1962-12-27
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Granted: 1965-02-16
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Expires: 1982-12-27
Abstract
No abstract record available.
Inventors
- 👤 Renborg Bengt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:44
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/02; H05B7/144; H05B7/148; H05B7/152; H05B7/10; H05B7/109; Y; Y02; Y02P; Y02P10/00; Y02P10/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN THE OPERATION OF AN ELECTRODE RESISTANCE FURNACE HAVING A FURNACE BOTTOM CONTAINING THE MOLTEN PART OF THE CHARGE AND A NON-MOLTEN PART OF THE CHARGE ABOVE THE MOLTEN PART, A ROOF HAVING AT LEAST ONE OPENING THEREIN, AN ELECTRODE MOUNTED FOR VERTICAL MOVEMENT THROUGH SAID OPENING AND EXTENDING INTO THE NON-MOLTEN PART OF THE CHARGE, AND MEANS FORMING A CIRCUIT PATH BETWEEN SAID ELECTRODE AND THE MOLTEN PART OF THE CHARGE; THE STEPS OF DERIVING A MAGNITUDE WHICH IS DEPENDENT ON THE REACTANCE OF SAID CIRCUIT PATH AND INDEPENDENT OF THE RESISTANCE AND CURRENT OF SAID PATH, AND VARYING THE VERTICAL POSITION OF
Claim 2
Dependent Claim
104 words
IN THE OPERATION OF AN ELECTRODE RESISTANCE FURNACE HAVING A FURNACE BOTTOM CONTAINING THE MOLTEN PART OF THE CHARGE AND A NON-MOLTEN PART OF THE CHARGE ABOVE THE MOLTEN PART, A ROOF HAVING AT LEAST ONE OPENING THEREIN, AN ELECTRODE MOUNTED FOR VERTICAL MOVEMENT THROUGH SAID OPENING AND EXTENDING INTO THE NON-MOLTEN PART OF THE CHARGE, AND MEANS FORMING A CIRCUIT PATH BETWEEN SAID ELECTRODE AND THE MOLTEN PART OF THE CHARGE; THE STEPS OF DERIVING A MAGNITUDE WHICH IS DEPENDENT ON THE REACTANCE OF SAID CIRCUIT PATH AND INDEPENDENT OF THE RESISTANCE AND CURRENT OF SAID PATH, AND VARYING THE VERTICAL POSITION OF
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) | 1968-02-16 | 1968-08-17 | 1969-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-16 | 1972-08-17 | 1973-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-16 | 1976-08-17 | 1977-02-16 | $7700.00 | Window Closed / Lapsed |