US3145245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Converter arrangement
Assignee: Institut de Recherches de la Siderurgie Francaise IRSID
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Filing: 1961-06-22
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Granted: 1964-08-18
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Expires: 1981-06-22
Abstract
No abstract record available.
Inventors
- 👤 Chedaille Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:41
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/30; C21C5/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
IN A CONVERTER ARRANGEMENT FOR TREATING MOLTEN METAL, IN COMBINATION, AN UPRIGHT CHAMBER HAVING AN INNER SURFACE AND A CENTRAL UPRIGHT AXIS AND ADAPTED TO HOLD MOLTEN METAL AT A PREDETERMINED METAL LEVEL; AND A SINGLE VERTICAL LANCE EXTENDING DOWNWARDLY INTO SAID CHAMBER AND HAVING A STATIONARY VERTICAL AXIS THROUGHOUT THAT PORTION OF ITS LENGTH WHICH IS LOCATED WITHIN SAID CHAMBER, SAID LANCE TERMINATING IN SAID CHAMBER IN A DOWNWARDLY DIRECTED ORFICE LOCATED IN SAID STATIONARY VERTICAL AXIS ABOVE SIAD PREDETERMINED METAL LEVEL AT A POINT LATERALLY SPACED FROM SAID CENTRAL UPRIGHT AXIS IN A PREDETERMINED HORIZONTAL DIRECTION AT A PREDETRMINED DISTANCE, SAID PREDETERMINED DISTANCE BEING WITHIN THE RANGE OF BETWEEN 15 AND 75% OF THE HORIZONTAL DISTANCE OF SAID INNER SURFACE FROM SAID CENTRAL UPRIGHT AXIS IN SAID PREDETERMINED DIRECTION, WHEREBY DUE TO THE LATERIAL SPACEING OF SAID SINGLE VERTICAL LANCE FORM SAID AXIS MASS OSCILLATIONS IN THE MOLTEN METAL WILL BE SLOWED DOWN AND SPATTERING OF THE LATTER WILL BE REDUCED.
Claim 2
Dependent Claim
163 words
IN A CONVERTER ARRANGEMENT FOR TREATING MOLTEN METAL, IN COMBINATION, AN UPRIGHT CHAMBER HAVING AN INNER SURFACE AND A CENTRAL UPRIGHT AXIS AND ADAPTED TO HOLD MOLTEN METAL AT A PREDETERMINED METAL LEVEL; AND A SINGLE VERTICAL LANCE EXTENDING DOWNWARDLY INTO SAID CHAMBER AND HAVING A STATIONARY VERTICAL AXIS THROUGHOUT THAT PORTION OF ITS LENGTH WHICH IS LOCATED WITHIN SAID CHAMBER, SAID LANCE TERMINATING IN SAID CHAMBER IN A DOWNWARDLY DIRECTED ORFICE LOCATED IN SAID STATIONARY VERTICAL AXIS ABOVE SIAD PREDETERMINED METAL LEVEL AT A POINT LATERALLY SPACED FROM SAID CENTRAL UPRIGHT AXIS IN A PREDETERMINED HORIZONTAL DIRECTION AT A PREDETRMINED DISTANCE, SAID PREDETERMINED DISTANCE BEING WITHIN THE RANGE OF BETWEEN 15 AND 75% OF THE HORIZONTAL DISTANCE OF SAID INNER SURFACE FROM SAID CENTRAL UPRIGHT AXIS IN SAID PREDETERMINED DIRECTION, WHEREBY DUE TO THE LATERIAL SPACEING OF SAID SINGLE VERTICAL LANCE FORM SAID AXIS MASS OSCILLATIONS IN THE MOLTEN METAL WILL BE SLOWED DOWN AND SPATTERING OF THE LATTER WILL BE REDUCED.
References Cited (Backward Citations)
GB700224A
Cited
US2668759A
Cited
US2817584A
Cited
DE1064969B
Cited
US2825551A
Cited
GB811043A
Cited
GB852373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |