US3172823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for hardening carbonaceous briquettes
Assignee: —
•
Filing: —
•
Granted: 1965-03-09
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Expires: 1982-03-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:14
CPC Classifications
C; C10; C10B; C10B53/00; C10B53/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN A PROCESS FOR AN OXIDIZING HEAT TREATMENT OF BRIQUETTES FORMED OF A CARBONACEOUS MATERIAL AND A BINDING AGENT, THE STEPS OF CIRCULATING HEATED GASES CONTAINING OXYGEN AT TEMPERATURES OF 200 TO 400* C. IN THE DIRECTION OF MOVEMENT OF BRIQUETTES MOVING THROUGH A FURNACE TO HEAT THE SAME, AND INTRODUCING COLD AIR INTO THE MOVING BRIQUETTES UPSTREAM OF THE INLET FOR THE CIRCULATED HEATED GASES IN THE DIRECTION OF MOVEMENT OF THE BRIQUETTES TO REPLACE THE OXYGEN CONSUMED FROM THE CIRCULATING HEATED GASES.
Claim 2
Dependent Claim
84 words
IN A PROCESS FOR AN OXIDIZING HEAT TREATMENT OF BRIQUETTES FORMED OF A CARBONACEOUS MATERIAL AND A BINDING AGENT, THE STEPS OF CIRCULATING HEATED GASES CONTAINING OXYGEN AT TEMPERATURES OF 200 TO 400* C. IN THE DIRECTION OF MOVEMENT OF BRIQUETTES MOVING THROUGH A FURNACE TO HEAT THE SAME, AND INTRODUCING COLD AIR INTO THE MOVING BRIQUETTES UPSTREAM OF THE INLET FOR THE CIRCULATED HEATED GASES IN THE DIRECTION OF MOVEMENT OF THE BRIQUETTES TO REPLACE THE OXYGEN CONSUMED FROM THE CIRCULATING HEATED GASES.
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) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |