US2496074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for deoxidizing iron and steel
Assignee: Ohio Ferro-Alloys Corp
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Filing: 1946-06-27
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Granted: 1950-01-31
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Expires: 1966-06-27
Abstract
No abstract record available.
Inventors
- 👤 James C Vignos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:35
CPC Classifications
C; C21; C21C; C21C7/00; C21C7/04; C21C7/06; C21C5/00; C21C5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN THE MANUFACTURE OF IRON AND STEEL, THE METHOD OF BLOCKING THE HEAT WHEN IT HAS REACHED THE DESIRED CARBON CONTENT, WHICH CONSISTS IN COATING ONE INCH AND LARGER LUMP DENSE 50% FERRO-SILICON WITH THE FILM OF A WETTING AGENT WHICH WILL ALLOW THE LUMP FERRO-SILCON TO BECOME WET BY MOLTEN SLAG AND ADDING THE COATED LAMP FERRO-SILICON TO THE FURANCE BATH, WHEREBY THE LUMP FERRO-SILICON IMMEDIATELY BECOMES WET BY THE SLAG AND SINKS THROUGH THE SLAG AND IMMEDIATELY GOES INTO SOLUTION AT THE INTER-FACE BETWEEN SLAG AND METAL, IN AN AMOUNT SUFFICIENT TO EFFECTIVELY DEOXIDIZE THE UPPER LAYER OF THE METAL AND THE LOWER LAYER OF THE SLAG IN THE REGION OF THE INTERFACE.
Claim 2
Dependent Claim
115 words
IN THE MANUFACTURE OF IRON AND STEEL, THE METHOD OF BLOCKING THE HEAT WHEN IT HAS REACHED THE DESIRED CARBON CONTENT, WHICH CONSISTS IN COATING ONE INCH AND LARGER LUMP DENSE 50% FERRO-SILICON WITH THE FILM OF A WETTING AGENT WHICH WILL ALLOW THE LUMP FERRO-SILCON TO BECOME WET BY MOLTEN SLAG AND ADDING THE COATED LAMP FERRO-SILICON TO THE FURANCE BATH, WHEREBY THE LUMP FERRO-SILICON IMMEDIATELY BECOMES WET BY THE SLAG AND SINKS THROUGH THE SLAG AND IMMEDIATELY GOES INTO SOLUTION AT THE INTER-FACE BETWEEN SLAG AND METAL, IN AN AMOUNT SUFFICIENT TO EFFECTIVELY DEOXIDIZE THE UPPER LAYER OF THE METAL AND THE LOWER LAYER OF THE SLAG IN THE REGION OF THE INTERFACE.
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) | 1953-01-30 | 1953-08-01 | 1954-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-30 | 1957-08-01 | 1958-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-30 | 1961-08-01 | 1962-01-31 | $7700.00 | Window Closed / Lapsed |