US3030202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iron refining process
Assignee: Individual
•
Filing: 1960-04-07
•
Granted: 1962-04-17
•
Expires: 1980-04-07
Abstract
No abstract record available.
Inventors
- 👤 Galocsy Zsigmond De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:30
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/30; C21C5/32
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
IN A CONVERTER STEEL-MAKING PROCESS, THE STEPS OF MAINTAINING A BATH OF MOLTEN IRON, SEPARATELY BURNING A FUEL TO PRODUCE AT LEAST ONE JET OF COMBUSTION GASES AT A TEMERATURE BETWEEN APPROXIMATELY 1400* C. AND 2000* C. AND A VELOCITY OF AT LEAST 100 METERS PER SECOND, ADDING FREE OXYGEN AND COMBINED OXYGEN CONTAINING CONSTITUENTS TO SAID JET, SAID COMBINED OXYGEN CONTAINING CONSTITUENTS BEING SELECTED FROM THE GROUP CONSISTING OF STEAM, CARBON OXIDE, POWDERED OXYGEN-CONTAINING ORES, LIMESTONE AND THE HYDROXIDES AND CARBONATES OF IRON AND MANGANESE, AND DISCHARGING SAID JET INTO SAID BATH OF MOLTEN IRON SO THAT AN OXYGENATING ATMOSPHERE IS CREATED AND THE CARBON IN SAID BATH IS DIRECTLY GASIFIED TO CARBON MONOXIDE FOR CONVERTING THE IRON TO STEEL.
References Cited (Backward Citations)
US2776883A
Cited
US1095184A
Cited
US2446511A
Cited
US2502259A
Cited
GB638256A
Cited
US2750277A
Cited
US2824793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |