US2608526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coking of carbonaceous fuels
Assignee: Standard Oil Development Co
•
Filing: 1946-12-14
•
Granted: 1952-08-26
•
Expires: 1966-12-14
Abstract
No abstract record available.
Inventors
- 👤 Walter A Rex
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:47
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/02; C10B; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10; C10G9/00; C10G9/28; C10G9/32; Y; Y10; Y10S; Y10S48/00; Y10S48/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
TH PROCESS OF PRODUCING VOLATILE FUELS FROM CARBONIZABLE MATERIALS AT A CARBONIZATION TEMPERATURE WHICH COMPRISES PASSING CARBONIZABLE MATERIAL THROUGH AN ELONGATED NARROW PATH IN CONTACTL WITH A MASS OF FINELY DIVIDED SOLIDS FLUIDIZED BY AN UPWARDLY FLOWING GAS AND HEATED INDEPENDENTLY OF SAID CARBONIZABLE MATERIAL AT LEAST TO SAID CARBONIZATION TEMPERATURE, FOR A TIME OF ABUT 0.5-15 SECONDS SUFFICIENT TO CARBONIZE SAID CARBONIZABLE MATERIAL SUBSTANTIALLY COMPLETELY BUT INSUFFICIENT TO PERMIT SUBSTANTIAL CRACKING OF VOLATILE CARBONIZATION PRODUCTS TO GASES, CONTROLLING THE FLOW VELOCITY OF SAID GAS BETWEEN ABOUT 2-30 FT. PER SECOND SO AS TO MAINTAIN HIGH TURBULENCE OF SAID MASS ACROSS THE CROSS-SECTIONAL AREA OF SAID PATH AND TO FORCE SAID GAS AND SAID MASS IN THE SAME DIRECTION UPWARDLY THROUGH SAID PATH WHILE PREVENTING SUBSTANTIAL BACK-MIXING OF SOLIDS AGAINST THE FLOW DIRECTION OF THE CHARGE, DISCHARGING FLUIDIZED SOLIDS AND VOLATILE PRODUCTS INTO A DISENGAGING ZONE, WITHDRAWING FINELY DI-
Claim 2
Dependent Claim
149 words
TH PROCESS OF PRODUCING VOLATILE FUELS FROM CARBONIZABLE MATERIALS AT A CARBONIZATION TEMPERATURE WHICH COMPRISES PASSING CARBONIZABLE MATERIAL THROUGH AN ELONGATED NARROW PATH IN CONTACTL WITH A MASS OF FINELY DIVIDED SOLIDS FLUIDIZED BY AN UPWARDLY FLOWING GAS AND HEATED INDEPENDENTLY OF SAID CARBONIZABLE MATERIAL AT LEAST TO SAID CARBONIZATION TEMPERATURE, FOR A TIME OF ABUT 0.5-15 SECONDS SUFFICIENT TO CARBONIZE SAID CARBONIZABLE MATERIAL SUBSTANTIALLY COMPLETELY BUT INSUFFICIENT TO PERMIT SUBSTANTIAL CRACKING OF VOLATILE CARBONIZATION PRODUCTS TO GASES, CONTROLLING THE FLOW VELOCITY OF SAID GAS BETWEEN ABOUT 2-30 FT. PER SECOND SO AS TO MAINTAIN HIGH TURBULENCE OF SAID MASS ACROSS THE CROSS-SECTIONAL AREA OF SAID PATH AND TO FORCE SAID GAS AND SAID MASS IN THE SAME DIRECTION UPWARDLY THROUGH SAID PATH WHILE PREVENTING SUBSTANTIAL BACK-MIXING OF SOLIDS AGAINST THE FLOW DIRECTION OF THE CHARGE, DISCHARGING FLUIDIZED SOLIDS AND VOLATILE PRODUCTS INTO A DISENGAGING ZONE, WITHDRAWING FINELY DI-
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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) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |