US2584808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for nodulization of iron ore
Assignee: Allis Chalmers Corp
•
Filing: 1947-03-26
•
Granted: 1952-02-05
•
Expires: 1967-03-26
Abstract
No abstract record available.
Inventors
- 👤 Ray C Newhouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:04
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
113 words
A PROCESS FOR NODULIZING IRON BEARING MATERIALS TO PRODUCE HARD, DENSE, HIGH OXYGEN BEARING NODULES, COMPRISING ESTABLISHING A MOVING BED OF SUCH MATERIALS PASSING THROUGH A PREHEATING ZONE, AGITATING SAID MATERIALS IN SAID BED AND SUPPLYING ADDITIONAL RAW MATERIAL AT ONE END OF SAID ZONE WHILE REMOVING MATERIAL AT A SUBSTANTIALLY EQUAL RATE BEYOND THE OTHER END OF SAID ZONE INTO A NODULIZING ZONE, PASSING A PREHEATING FLAME IN COUNTER-CURRENT TO SAID MOVING BED OF MATERIAL THROUGH SAID PREHEATING ZONE, SUPPLYING SECONDARY AIR COCURRENT TO SAID FLAME IN A CURTAIN-LIKE STREAM DIRECTED TO BLANKET SAID BED AND CONTROL THE CHARACTER OF THAT PORTION OF THE GASES MOST IMMEDIATELY IN THE VICINITY OF THE
References Cited (Backward Citations)
US822929A
Cited
US1066042A
Cited
US1770588A
Cited
US1866203A
Cited
US1979729A
Cited
US2282124A
Cited
US2356024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |