US3227530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing fuel logs
Assignee: BC Research (Canada)
•
Filing: 1961-10-16
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Granted: 1966-01-04
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Expires: 1981-10-16
Abstract
No abstract record available.
Inventors
- 👤 Bruce H Levelton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:23
CPC Classifications
C; C08; C08H; C08H8/00; C10; C10L; C10L5/00; C10L5/02; C10L5/06; C10L5/40; C10L5/44; Y; Y02; Y02E; Y02E50/00; Y02E50/10; Y02E50/30; Y10; Y10S; Y10S100/00; Y10S100/903; Y10S100/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
THE PROCESS OF PRODUCING FUEL LOGS FROM LIGNOCELLULOSIC MATERIAL IN PARTICULATE FORM WHICH COMPRISES COMPRESSING LIGNO-CELLULOSIC PARTICLES WITH A MOISTURE CONTENT OF AT LEAST 15 PERCENT WET BASIC INTO A COMPACTED MASS WHILE ALLOWING FREED MOISTURE TO ESCAPE AND UNDER PRESSURES AND TEMPERATURES SUFFICIENT TO INDUCE, IN THE PRESENCE OF MOISTURE, FLASHING OF A PORTION OF THE MOISTURE INTO STEAM ON SUBSQUENT MOMENTARY REDUCTION OF THE PRESSURE, WITH CONSEQUENT DISINTEGRATION OF THE PARTICLES, BUT NOT SUFFICIENT TO START THERMAL DECOMPOSITION OF THE MASS; SIMULTANEOUSLY REMOVING STEAM AS ITIS GENERATED; AND INSTANTLY COMPRESSING SAID DISNTEGRATED MATERIAL WITHOUT THERMAL DECOMPOSITION INTO A DENSE SUBSTANTIALLY SOLID, WATER-STABLE PRODUCT.
Claim 2
Dependent Claim
105 words
THE PROCESS OF PRODUCING FUEL LOGS FROM LIGNOCELLULOSIC MATERIAL IN PARTICULATE FORM WHICH COMPRISES COMPRESSING LIGNO-CELLULOSIC PARTICLES WITH A MOISTURE CONTENT OF AT LEAST 15 PERCENT WET BASIC INTO A COMPACTED MASS WHILE ALLOWING FREED MOISTURE TO ESCAPE AND UNDER PRESSURES AND TEMPERATURES SUFFICIENT TO INDUCE, IN THE PRESENCE OF MOISTURE, FLASHING OF A PORTION OF THE MOISTURE INTO STEAM ON SUBSQUENT MOMENTARY REDUCTION OF THE PRESSURE, WITH CONSEQUENT DISINTEGRATION OF THE PARTICLES, BUT NOT SUFFICIENT TO START THERMAL DECOMPOSITION OF THE MASS; SIMULTANEOUSLY REMOVING STEAM AS ITIS GENERATED; AND INSTANTLY COMPRESSING SAID DISNTEGRATED MATERIAL WITHOUT THERMAL DECOMPOSITION INTO A DENSE SUBSTANTIALLY SOLID, WATER-STABLE PRODUCT.
References Cited (Backward Citations)
CA457753A
Cited
USRE23948E
Cited
CA559500A
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CA627048A
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US1156096A
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US2224212A
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US2648262A
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US3070485A
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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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |