Patent US3365185A successfully refreshed from Google Patents.
US3365185A
Expired / Lapsed
US
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Production of metals from pulverulent materials by flash smelting in an electrically heated furnace
Assignee: Boliden AB
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Filing: 1964-01-27
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Granted: 1968-01-23
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Expires: 1984-01-27
Abstract
No abstract record available.
Inventors
- 👤 Elvander Hans Ivar
- 👤 Sundstrom Erik Olof Albin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:10
CPC Classifications
C; C21; C21B; C21B13/00; C21B13/12; C21B13/125; C22; C22B; C22B9/00; C22B9/16; C22B9/22; C22B9/226; Y; Y02; Y02P; Y02P10/00; Y02P10/10; Y02P10/134
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A REACTOR FOR THE PRODUCTION OF METALS FROM FINELY DIVIDED ORES, COMPRISING A RECTANGULAR FURNACE CHAMBER, MEANS FOR HEATING THE FURNACE CHAMBER COMPRISING ELECTRODES INSERTED THROUGH THE ROOF AND DEPENDING INTO THE FURNACE CHAMBER WHEREIN THE ELECTRODES ARE ARRANGED IN AT LEAST ONE ROW EXTENDING LENGTHWISE OF SAID CHAMBER, AT LEAST ONE SET OF NOZZLES FOR CHARGING FINELY DIVIDED ORE TO BE TREATED INTO SAID CHAMBER, MEANS FOR DISCHARGING REDUCED METAL, MEANS FOR INJECTING REACTANTS INTO SAID CHAMBER COMPRISING AT LEAST ONE SET OF AT LEAST TWO NOZZLES EACH DIRECTED TANGENTIALLY TO AN IMAGINARY HORIZONTAL CIRCLE
Claim 2
Dependent Claim
96 words
A REACTOR FOR THE PRODUCTION OF METALS FROM FINELY DIVIDED ORES, COMPRISING A RECTANGULAR FURNACE CHAMBER, MEANS FOR HEATING THE FURNACE CHAMBER COMPRISING ELECTRODES INSERTED THROUGH THE ROOF AND DEPENDING INTO THE FURNACE CHAMBER WHEREIN THE ELECTRODES ARE ARRANGED IN AT LEAST ONE ROW EXTENDING LENGTHWISE OF SAID CHAMBER, AT LEAST ONE SET OF NOZZLES FOR CHARGING FINELY DIVIDED ORE TO BE TREATED INTO SAID CHAMBER, MEANS FOR DISCHARGING REDUCED METAL, MEANS FOR INJECTING REACTANTS INTO SAID CHAMBER COMPRISING AT LEAST ONE SET OF AT LEAST TWO NOZZLES EACH DIRECTED TANGENTIALLY TO AN IMAGINARY HORIZONTAL CIRCLE
References Cited (Backward Citations)
US817414A
Cited
US860512A
Cited
US1007990A
Cited
US1847527A
Cited
US1904683A
Cited
US2184300A
Cited
US2283163A
Cited
US2630309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |