US2725348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized distillation of oil-bearing minerals
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1949-12-30
•
Granted: 1955-11-29
•
Expires: 1969-12-30
Abstract
No abstract record available.
Inventors
- 👤 Homer Z Martin
- 👤 Charles W Tyson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:22
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
THE PROCESS OF DISTILLING OIL-BEARING MINERALS IN THE FORM OF A HIGHLY TURBULENT, DENSE, FLUIDIZED MASS OF SUBDIVIDED SOLIDS, WHICH COMPRISES HEATING AN EXTRANEOUS SUBDIVIDED SOLID HEAT CARRIER HAVING A GAS SETTLING RATE HIGHER THAN THAT OF SAID SUBDIVIDED MINERALS TO AN ELEVATED TEMPERATURE BY INTIMATELY CONTACTING SAID HEAT CARRIER WITH A MASS OF HOT PARTICULATE SOLID RESIDUE OF SAID FIRST MENTIONED SOLIDS, TRANSFERRING SENSIBLE HEAT OF SAID HEATED HEAT CARRIER TO AN INCOMING MASS OF SAID MINERALS BY PASSING SAID HEATED HEAT CARRIER IN A SUBSTANTIALLY NON-TURBULENT CONDITION DOWNWARDLY THROUGH A SUBSTANTIALLY VERTICAL CONTACTING ZONE IN DIRECT COUNTERCURRENT HEAT EXCHANGE WITH AN UPWARDLY MOVING FLUIDIZED MASS OF SAID MINERALS, LIMITING THE FREE MOTION OF THE PARTICLES
Claim 2
Dependent Claim
117 words
THE PROCESS OF DISTILLING OIL-BEARING MINERALS IN THE FORM OF A HIGHLY TURBULENT, DENSE, FLUIDIZED MASS OF SUBDIVIDED SOLIDS, WHICH COMPRISES HEATING AN EXTRANEOUS SUBDIVIDED SOLID HEAT CARRIER HAVING A GAS SETTLING RATE HIGHER THAN THAT OF SAID SUBDIVIDED MINERALS TO AN ELEVATED TEMPERATURE BY INTIMATELY CONTACTING SAID HEAT CARRIER WITH A MASS OF HOT PARTICULATE SOLID RESIDUE OF SAID FIRST MENTIONED SOLIDS, TRANSFERRING SENSIBLE HEAT OF SAID HEATED HEAT CARRIER TO AN INCOMING MASS OF SAID MINERALS BY PASSING SAID HEATED HEAT CARRIER IN A SUBSTANTIALLY NON-TURBULENT CONDITION DOWNWARDLY THROUGH A SUBSTANTIALLY VERTICAL CONTACTING ZONE IN DIRECT COUNTERCURRENT HEAT EXCHANGE WITH AN UPWARDLY MOVING FLUIDIZED MASS OF SAID MINERALS, LIMITING THE FREE MOTION OF THE PARTICLES
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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) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |