US2933796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Utilization of fly ash
Assignee: Individual
•
Filing: 1956-11-23
•
Granted: 1960-04-26
•
Expires: 1976-11-23
Abstract
No abstract record available.
Inventors
- 👤 Somogyi Francis Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:45
CPC Classifications
C; C04; C04B; C04B18/00; C04B18/04; C04B18/06; C04B18/08; C04B18/085; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91; Y10; Y10S; Y10S106/00; Y10S106/01; Y10S425/00; Y10S425/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A PROCESS FOR PRODUCING SINTERED MATERIAL FROM FLY ASH CORRESPONDING TO A CARBON CONTENT OF AT LEAST 2.5% ON A DRY BASIS, WHEREBY THE FLY ASH IS FIRST NODULIZED INTO PARTICLES OF SUBSTANTIALLY UNIFORM SHAPE AND DIMENSIONS, COMPRISING THE STEPS OF CAUSING SAID PARTICLES TO PASS DOWNWARD AND IN SUCCESSION THROUGH VERTICALLY EXTENDING COMBUSTION AND SINTERING ZONES AND A COOLING ZONE, AT A SUBSTANTIALLY CONSTANT SINTERING TEMPERATURE IN THE RANGE BETWEEN 1150* AND 1250*C. IN COUNTER-CURRENT TO AN ASCENDING AIR BLAST, IN ORDER TO CAUSE BURNING OF THE FUEL AND SINTERING OF SAID PARTICLES DURING PASSAGE THEREOF THROUGH
Claim 2
Dependent Claim
98 words
A PROCESS FOR PRODUCING SINTERED MATERIAL FROM FLY ASH CORRESPONDING TO A CARBON CONTENT OF AT LEAST 2.5% ON A DRY BASIS, WHEREBY THE FLY ASH IS FIRST NODULIZED INTO PARTICLES OF SUBSTANTIALLY UNIFORM SHAPE AND DIMENSIONS, COMPRISING THE STEPS OF CAUSING SAID PARTICLES TO PASS DOWNWARD AND IN SUCCESSION THROUGH VERTICALLY EXTENDING COMBUSTION AND SINTERING ZONES AND A COOLING ZONE, AT A SUBSTANTIALLY CONSTANT SINTERING TEMPERATURE IN THE RANGE BETWEEN 1150* AND 1250*C. IN COUNTER-CURRENT TO AN ASCENDING AIR BLAST, IN ORDER TO CAUSE BURNING OF THE FUEL AND SINTERING OF SAID PARTICLES DURING PASSAGE THEREOF THROUGH
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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) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |