US3232845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making coke
Assignee: —
•
Filing: —
•
Granted: 1966-02-01
•
Expires: 1983-02-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:40
CPC Classifications
C; C10; C10B; C10B53/00; C10B53/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A METHOD FOR PRODUCING COKE BRIQUETTES FROM NORMALLY NON-COKING CARBONACEOUS MATERIAL WITHOUT THE USE OF BINDING AGENTS COMPRISING THE STEPS OF: HEATING THE NORMALLY NON-COKING CARBONACEOUS STARTING MATERIAL TO A TEMPERATURE WHICH IS ABOVE THE DECOMPOSITION TEMPERATURE OF SAID CARBONACEOUS MATERIAL AND BETWEEN 400*F. AND 900*F. FOR A PERIOD OF TIME NOT GREATER THAN 30 SECONDS TO DRIVE OFF FREE AND COMBINED MOISTURE AND A PORTION OF THE VOLATILE MATERIALS OF SAID CARBONACEOUS MATERIAL; BRIQUETTING SAID CARBONACEOUS MATERIAL AT PRESSURES BETWEEN 15000 AND 40000 POUNDS PER SQUARE INCH WHILE HEATED TO A TEMPERTURE BETWEEN 400* F. AND 900*F. TO FORM A DENSE STRONG BRIQUETTE OF PARTIALLY DECOMPOSED AND PARTIALLY DEVOLATIZED CARBONACEOUS MATERIAL AND THEREAFTER CARBONIZING SAID BRIQUETTES AT A TEMPERATURE BETWEEN 900*F. AND 2000*F. TO FORM A COKE BRIQUETTE OF PREDETERMINED STRENGTH AND DENSITY.
Claim 2
Independent Claim
134 words
A METHOD FOR PRODUCING COKE BRIQUETTES FROM NORMALLY NON-COKING CARBONACEOUS MATERIAL WITHOUT THE USE OF BINDING AGENTS COMPRISING THE STEPS OF: HEATING THE NORMALLY NON-COKING CARBONACEOUS STARTING MATERIAL TO A TEMPERATURE WHICH IS ABOVE THE DECOMPOSITION TEMPERATURE OF SAID CARBONACEOUS MATERIAL AND BETWEEN 400*F. AND 900*F. FOR A PERIOD OF TIME NOT GREATER THAN 30 SECONDS TO DRIVE OFF FREE AND COMBINED MOISTURE AND A PORTION OF THE VOLATILE MATERIALS OF SAID CARBONACEOUS MATERIAL; BRIQUETTING SAID CARBONACEOUS MATERIAL AT PRESSURES BETWEEN 15000 AND 40000 POUNDS PER SQUARE INCH WHILE HEATED TO A TEMPERTURE BETWEEN 400* F. AND 900*F. TO FORM A DENSE STRONG BRIQUETTE OF PARTIALLY DECOMPOSED AND PARTIALLY DEVOLATIZED CARBONACEOUS MATERIAL AND THEREAFTER CARBONIZING SAID BRIQUETTES AT A TEMPERATURE BETWEEN 900*F. AND 2000*F. TO FORM A COKE BRIQUETTE OF PREDETERMINED STRENGTH AND DENSITY.
References Cited (Backward Citations)
GB210466A
Cited
US2594226A
Cited
US2706706A
Cited
FR1062128A
Cited
US2824790A
Cited
US2838386A
Cited
US2937080A
Cited
US3093463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |