US2730240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydration of oils
Assignee: Union Oil Company of California
•
Filing: 1952-02-08
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Granted: 1956-01-10
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Expires: 1972-02-08
Abstract
No abstract record available.
Inventors
- 👤 Leslie C Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:30
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/06; B; B01; B01D; B01D17/00; B01D17/02; B01D17/0205; B01D17/04; B01D17/047; B01D17/12; C10G31/00; C10G31/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A PROCESS FOR THE DEHYDRATION OF WATER-CONTAINING OILS WHICH COMPRISES ESTABLISHING A TREATING ZONE CONTAINING A FLOTATION ZONE COMMUNICATING WITH A SUPERIMPOSED OIL WASHING ZONE, INTRODUCING OIL CONTAMINATED WITH WATER INTO SAID TREATING ZONE, MAINTAINING A BODY OF OIL IN SAID WASHING ZONE, MAINTAINING A BODY OF WATER IN SAID FLOTATION ZONE, INJECTING A STREAM OF CLEAN WATER RECYCLE CONTAINING DISSOLVED FLOTATION GAS INTO SAID FLOTATION ZONE, DEPRESSURING SAID RECYCLE STREAM TO LIBERATE FLOTATION GAS THEREFROM WHEREBY EMULSIFIED OIL PARTICLES ARE AGGLOMERATED AND CARRIED BY THE FLOTATION BUBBLES COUNTERCURRENTLY TO WATER PASSING THROUGH SAID FLOTATION ZONE AND THEN INTO SAID OIL WASHING ZONE, REMOVING WATER FROM SAID FLOTATION ZONE, PASSING A HEATED STREAM OF CLEAN WATER RECYCLE IN COUNTERCURRENT CONTACT WITH SAID BODY OF OIL THROUGH SAID WASHING ZONE AND ON INTO SAID FLOTATION ZONE FORMING AN OIL PHASE OF REDUCED WATER CONTENT, FLOWING SAID WATER REMOVED FROM SAID FLOTATION ZONE INTO A SUPPLEMENTAL FLOTATION ZONE, INJECTING ADDITIONAL CLEAN WATER RECYCLE CONTAINING DISSOLVED FLOTATION GAS AND DEPRESSURING
Claim 2
Dependent Claim
167 words
A PROCESS FOR THE DEHYDRATION OF WATER-CONTAINING OILS WHICH COMPRISES ESTABLISHING A TREATING ZONE CONTAINING A FLOTATION ZONE COMMUNICATING WITH A SUPERIMPOSED OIL WASHING ZONE, INTRODUCING OIL CONTAMINATED WITH WATER INTO SAID TREATING ZONE, MAINTAINING A BODY OF OIL IN SAID WASHING ZONE, MAINTAINING A BODY OF WATER IN SAID FLOTATION ZONE, INJECTING A STREAM OF CLEAN WATER RECYCLE CONTAINING DISSOLVED FLOTATION GAS INTO SAID FLOTATION ZONE, DEPRESSURING SAID RECYCLE STREAM TO LIBERATE FLOTATION GAS THEREFROM WHEREBY EMULSIFIED OIL PARTICLES ARE AGGLOMERATED AND CARRIED BY THE FLOTATION BUBBLES COUNTERCURRENTLY TO WATER PASSING THROUGH SAID FLOTATION ZONE AND THEN INTO SAID OIL WASHING ZONE, REMOVING WATER FROM SAID FLOTATION ZONE, PASSING A HEATED STREAM OF CLEAN WATER RECYCLE IN COUNTERCURRENT CONTACT WITH SAID BODY OF OIL THROUGH SAID WASHING ZONE AND ON INTO SAID FLOTATION ZONE FORMING AN OIL PHASE OF REDUCED WATER CONTENT, FLOWING SAID WATER REMOVED FROM SAID FLOTATION ZONE INTO A SUPPLEMENTAL FLOTATION ZONE, INJECTING ADDITIONAL CLEAN WATER RECYCLE CONTAINING DISSOLVED FLOTATION GAS AND DEPRESSURING
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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) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |