US3130142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of deaeration
Assignee: Pullman Inc
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Filing: 1960-07-29
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Granted: 1964-04-21
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Expires: 1980-07-29
Abstract
No abstract record available.
Inventors
- 👤 Marvin F Nathan
- 👤 Victor M Fillow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:54
CPC Classifications
C; C10; C10C; C10C3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN A METHOD WHICH COMPRISES PASSING FROTH OBTAINED FROM THE WATER EXTRATION OF TAR SNDS AND COMPRISING A MIXTURE OF OIL, AIR, WATER, AND ENTRAINED FINELY DIVIDED SOLID MATERIAL TO A DEAERATION ZONE, STRIPPING SAID FROTH WITH STEAM UNDER A SUBATMOSPHERIC PRESSURE AND ELEVATED TEMPERATURE TO REMOVE AIR THEREFROM AND TO PROVIDE, A DEAERATED LIQUID PHASE COMPRISING OIL AND WATER, MIXING A RELATIVELY LOW BOILING HYDROCARBON DILUENT MATERIAL WITH SAID DEAERATED LIQUID PHASE UNDER ELEVATED TEMPERATURE CONDITIONS TO PRODUCE A DILUTED LIQUID PHASE, AND THEREAFTER SEPARATING THE DILUTED LIQUID PHASE INTO A HYDROCARBON-RICH PHASE AND A WATER-RICH PHASE.
Claim 2
Dependent Claim
98 words
IN A METHOD WHICH COMPRISES PASSING FROTH OBTAINED FROM THE WATER EXTRATION OF TAR SNDS AND COMPRISING A MIXTURE OF OIL, AIR, WATER, AND ENTRAINED FINELY DIVIDED SOLID MATERIAL TO A DEAERATION ZONE, STRIPPING SAID FROTH WITH STEAM UNDER A SUBATMOSPHERIC PRESSURE AND ELEVATED TEMPERATURE TO REMOVE AIR THEREFROM AND TO PROVIDE, A DEAERATED LIQUID PHASE COMPRISING OIL AND WATER, MIXING A RELATIVELY LOW BOILING HYDROCARBON DILUENT MATERIAL WITH SAID DEAERATED LIQUID PHASE UNDER ELEVATED TEMPERATURE CONDITIONS TO PRODUCE A DILUTED LIQUID PHASE, AND THEREAFTER SEPARATING THE DILUTED LIQUID PHASE INTO A HYDROCARBON-RICH PHASE AND A WATER-RICH PHASE.
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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |