US2603561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for reducing ores
Assignee: Individual
•
Filing: 1951-04-11
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Granted: 1952-07-15
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Expires: 1971-04-11
Abstract
No abstract record available.
Inventors
- 👤 Swann Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:23
CPC Classifications
C; C21; C21B; C21B13/00; C21B13/04; Y; Y02; Y02P; Y02P10/00; Y02P10/10; Y02P10/134
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
THE METHOD OF REDUCING OXIDES OF ORE WHICH COMPRISES FORMING A BURDEN CONSISTING OF THE OXIDES TO BE REDUCED, CARBON AND A FLUX INTO A SPIRALLY MOVING COLUMN OF THE SAME, INTRODUCING SAID BURDEN INTO INTIMATE CONTACT WITH CARBON MONOXIDE GAS IN A CLOSED CHAMBER, HEATING SAID CLOSED CHAMBER TO MAINTAIN THE OXIDES AND GAS THEREIN WITHIN THE TEMPERATURE RANGE REQUIRED FOR REDUCTION, PASSING EXCESS CARBON MONOXIDE GAS FORMED IN SAID CLOSED CHAMBER COUNTERCURRENT TO AND INTO INTIMATE CONTACT WITH SAID SPIRALLY MOVING BURDEN THUS PARTIALLY REDUCING AND PREHEATING THE ORES PRIOR TO REACHING SAID CLOSED CHAMBER.
Claim 2
Independent Claim
97 words
THE METHOD OF REDUCING OXIDES OF ORE WHICH COMPRISES FORMING A BURDEN CONSISTING OF THE OXIDES TO BE REDUCED, CARBON AND A FLUX INTO A SPIRALLY MOVING COLUMN OF THE SAME, INTRODUCING SAID BURDEN INTO INTIMATE CONTACT WITH CARBON MONOXIDE GAS IN A CLOSED CHAMBER, HEATING SAID CLOSED CHAMBER TO MAINTAIN THE OXIDES AND GAS THEREIN WITHIN THE TEMPERATURE RANGE REQUIRED FOR REDUCTION, PASSING EXCESS CARBON MONOXIDE GAS FORMED IN SAID CLOSED CHAMBER COUNTERCURRENT TO AND INTO INTIMATE CONTACT WITH SAID SPIRALLY MOVING BURDEN THUS PARTIALLY REDUCING AND PREHEATING THE ORES PRIOR TO REACHING SAID CLOSED CHAMBER.
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) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |