US2562813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous ore reducing and melting operation
Assignee: Standard Oil Development Co
•
Filing: 1948-03-11
•
Granted: 1951-07-31
•
Expires: 1968-03-11
Abstract
No abstract record available.
Inventors
- 👤 Henry J Ogorzaly
- 👤 Homer Z Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:41
CPC Classifications
C; C21; C21B; C21B13/00; C21B13/14; Y; Y02; Y02P; Y02P10/00; Y02P10/10; Y02P10/134
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
THE METHOD OF SMELTING AN IRON ORE WHICH COMPRISES CHARGING SAID ORE IN THE SUBDIVIDED STATE INTO A PRIMARY HIGH TEMPERATURE REDUCING AND MELTING ZONE, PARTIALLY REDUCING THEREIN SAID ORE IN DILUTE SUSPENSION IN A GASIFORM REDUCING AGENT TO A LOWER OXIDE MELTING BELOW THE TEMPERATURE LEVEL MAINTAINED WITHIN SAID ZONE, FUSING SAID LOWER OXIDE IN SAID ZONE INTO LIQUID DROPLETS SUSPENDED IN SAID GASIFORM REDUCING AGENT, SEPARATING SAID LIQUID DROPLETS FROM SAID GASEOUS SUSPENSION, COLLECTING SAID LIQUID DROPLETS IN A MOLTEN POOL MAINTAINED AT A TEMPERATURE LEVEL ABOVE THE MELTING POINT OF IRON, PASSING A GASIFORM REDUCING AGENT THROUGH SAID MOLTEN POOL TO
Claim 2
Independent Claim
104 words
THE METHOD OF SMELTING AN IRON ORE WHICH COMPRISES CHARGING SAID ORE IN THE SUBDIVIDED STATE INTO A PRIMARY HIGH TEMPERATURE REDUCING AND MELTING ZONE, PARTIALLY REDUCING THEREIN SAID ORE IN DILUTE SUSPENSION IN A GASIFORM REDUCING AGENT TO A LOWER OXIDE MELTING BELOW THE TEMPERATURE LEVEL MAINTAINED WITHIN SAID ZONE, FUSING SAID LOWER OXIDE IN SAID ZONE INTO LIQUID DROPLETS SUSPENDED IN SAID GASIFORM REDUCING AGENT, SEPARATING SAID LIQUID DROPLETS FROM SAID GASEOUS SUSPENSION, COLLECTING SAID LIQUID DROPLETS IN A MOLTEN POOL MAINTAINED AT A TEMPERATURE LEVEL ABOVE THE MELTING POINT OF IRON, PASSING A GASIFORM REDUCING AGENT THROUGH SAID MOLTEN POOL TO
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |