Patent US5157715A successfully refreshed from Google Patents.
US2937080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making binderless briquettes
Assignee: Komarek-Greaves and Co
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Filing: 1957-02-14
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Granted: 1960-05-17
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Expires: 1977-02-14
Abstract
No abstract record available.
Inventors
- 👤 Komarek Gustav
- 👤 Karl R Komarek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:03
CPC Classifications
C; C10; C10L; C10L5/00; C10L5/02; C10L5/06; C10L5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
THE PROCESS OF HANDLING RAW COAL BEING FED TO A BRIQUETTING MACHINE COMPRISING FEEDING COAL INTO A STREAM OF HOT GAS, MOVING THE COAL DIRECTLY WITH THE AID OF SAID GAS TO THE BRIQUETTING MACHINE WHILE SIMULTANEOUSLY VENTING OFF PART OF THE GAS AND RECYCLING THE REMAINDER OF THE GAS TO THE STREAM OF GAS USED TO TRANSPORT THE COAL, THE TEMPERATURE OF THE GAS BEING BETWEEN ABOUT 300*F. AND 700*F. AFTER ADMIXTURE WITH THE COAL AND THE TEMPERATURE OF THE COAL BEING BETWEEN ABOUT 300*F. AND 700*F. WHEN IT REACHES THE BRIQUETTING MACHINE ROOLS, SAID TEMPPERATURE OF THE COAL BEING SUFFICIENTLY HIGH TO COMPLETELY PREPARE THE COAL FOR BRIQUETTING.
Claim 2
Dependent Claim
110 words
THE PROCESS OF HANDLING RAW COAL BEING FED TO A BRIQUETTING MACHINE COMPRISING FEEDING COAL INTO A STREAM OF HOT GAS, MOVING THE COAL DIRECTLY WITH THE AID OF SAID GAS TO THE BRIQUETTING MACHINE WHILE SIMULTANEOUSLY VENTING OFF PART OF THE GAS AND RECYCLING THE REMAINDER OF THE GAS TO THE STREAM OF GAS USED TO TRANSPORT THE COAL, THE TEMPERATURE OF THE GAS BEING BETWEEN ABOUT 300*F. AND 700*F. AFTER ADMIXTURE WITH THE COAL AND THE TEMPERATURE OF THE COAL BEING BETWEEN ABOUT 300*F. AND 700*F. WHEN IT REACHES THE BRIQUETTING MACHINE ROOLS, SAID TEMPPERATURE OF THE COAL BEING SUFFICIENTLY HIGH TO COMPLETELY PREPARE THE COAL FOR BRIQUETTING.
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) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |