US3041267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of oil from tar sand
Assignee: Cities Service Research and Development Co
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Filing: 1959-03-10
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Granted: 1962-06-26
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Expires: 1979-03-10
Abstract
No abstract record available.
Inventors
- 👤 John D Frame
- 👤 John D Haney
- 👤 Edmund W White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:30
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/04; C10G1/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
THE PROCESS FOR REMMOVING HYDROCARBON OIL FROM BITUMIONOUS SAND CONTAINING THE SAME WHICH COMPRISES MIXUNG SAID BITUMINOUS SAND WITH HYDROCARBON DILUENT TO FROM A SLURRY, PASSING SAID SLUSRRY DOWN AN INCLINED SLOPE POSITIONED WITHIN A WASH TANK CONTAINING WATTER TO SEPARATE HYDROCARBON OIL THEREEFROM, SEPARATING ADDITIONAL HYDROCARBON OIL FROM SAND PARTIALLY CLEANED BY INITIAL CONTACT WITH WATER BY MOVING THE SAND HORIZONTALLY AND IN A FLUIDIZED MANNER ACROSS THE BOTTOM OF WASH TANK, THE MOVING AND FLUIDIZATION BEING ACCOMPLISHED BY THE INTRODUCTION OF WATER INTO THE BOTTOM OF SAID TANK IN A MANNER THAT SUBSTANTIALLY LIMITS THE FORMATION OF EMULSION.
Claim 2
Dependent Claim
100 words
THE PROCESS FOR REMMOVING HYDROCARBON OIL FROM BITUMIONOUS SAND CONTAINING THE SAME WHICH COMPRISES MIXUNG SAID BITUMINOUS SAND WITH HYDROCARBON DILUENT TO FROM A SLURRY, PASSING SAID SLUSRRY DOWN AN INCLINED SLOPE POSITIONED WITHIN A WASH TANK CONTAINING WATTER TO SEPARATE HYDROCARBON OIL THEREEFROM, SEPARATING ADDITIONAL HYDROCARBON OIL FROM SAND PARTIALLY CLEANED BY INITIAL CONTACT WITH WATER BY MOVING THE SAND HORIZONTALLY AND IN A FLUIDIZED MANNER ACROSS THE BOTTOM OF WASH TANK, THE MOVING AND FLUIDIZATION BEING ACCOMPLISHED BY THE INTRODUCTION OF WATER INTO THE BOTTOM OF SAID TANK IN A MANNER THAT SUBSTANTIALLY LIMITS THE FORMATION OF EMULSION.
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) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |