US3234608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous-casting method of melting metals in a slag medium by using consumable electrodes
Assignee: Renault SA
•
Filing: 1964-09-03
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Granted: 1966-02-15
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Expires: 1984-09-03
Abstract
No abstract record available.
Inventors
- 👤 Peras Lucien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:32
CPC Classifications
C; C22; C22B; C22B9/00; C22B9/16; C22B9/20; B; B22; B22D; B22D23/00; B22D23/06; B22D23/10; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/362; C22B4/00; C22B9/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
THE METHOD OF REFINING AND CASTING FERROUS METALS COMPRISING CONTINUOUSLY FEEDING A CONSUMABLE ELECTRODE OF SAID METAL CONTAINING IMPURITIES INCLUDING IRON OXIDE TO A MOLTEN BODY OF SAID METAL IN A BATH OF BASIC SLAG HAVING AN INDEX OF BASICITY GREATER THAN 1, APPLYING A DIRECT CURRENT POTENTIAL TO SAID ELECTRODE AS THE ANODE AND TO SAID BODY OF MOLTEN METAL AS THE CATHODE, THE COMPOSITION OF SAID SLAG, THE TENSION OF SAID DIRECT CURRENT, AND THE SEPARATION OF SAID BODY AND THE BOTTOM OF THE SAID ELECTRODE BEING SUCH THAT CURRENT FLOWS BETWEEN SAID ELECTRODE AND SAID BODY THROUGH SAID SLAG WITHOUT ARCING AND SAID OXIDE IS REDUCED ELECTROLYTICALLY WHILE THE END OF SAID ELECTRODE IS PROGRESSIVELY MELTED, CONTINUOUSLY WITHDRAWING MOLTEN METAL FROM SAID BODY AS SAID ELECTRODE IS CONSUMED, PASSING SAID WITHDRAWN METAL INTO AND THROUGH A COOLED CONTINUOUS CASTING MOLD THEREBY PRODUCING A CONTINUOUS CASTING OF REFINED METAL.
Claim 2
Independent Claim
151 words
THE METHOD OF REFINING AND CASTING FERROUS METALS COMPRISING CONTINUOUSLY FEEDING A CONSUMABLE ELECTRODE OF SAID METAL CONTAINING IMPURITIES INCLUDING IRON OXIDE TO A MOLTEN BODY OF SAID METAL IN A BATH OF BASIC SLAG HAVING AN INDEX OF BASICITY GREATER THAN 1, APPLYING A DIRECT CURRENT POTENTIAL TO SAID ELECTRODE AS THE ANODE AND TO SAID BODY OF MOLTEN METAL AS THE CATHODE, THE COMPOSITION OF SAID SLAG, THE TENSION OF SAID DIRECT CURRENT, AND THE SEPARATION OF SAID BODY AND THE BOTTOM OF THE SAID ELECTRODE BEING SUCH THAT CURRENT FLOWS BETWEEN SAID ELECTRODE AND SAID BODY THROUGH SAID SLAG WITHOUT ARCING AND SAID OXIDE IS REDUCED ELECTROLYTICALLY WHILE THE END OF SAID ELECTRODE IS PROGRESSIVELY MELTED, CONTINUOUSLY WITHDRAWING MOLTEN METAL FROM SAID BODY AS SAID ELECTRODE IS CONSUMED, PASSING SAID WITHDRAWN METAL INTO AND THROUGH A COOLED CONTINUOUS CASTING MOLD THEREBY PRODUCING A CONTINUOUS CASTING OF REFINED METAL.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |