US2797140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for covering crude oil
Assignee: Standard Oil Co
•
Filing: 1954-01-28
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Granted: 1957-06-25
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Expires: 1974-01-28
Abstract
No abstract record available.
Inventors
- 👤 Veatch Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:33
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/22; B65D90/38; B65D90/42; Y; Y10; Y10S; Y10S264/00; Y10S264/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A METHOD OF INSTALLING A FOAM ON THE SURFACE OF CRUDE OIL IN A TANK WHICH COMPRISES PASSING AT LEAST A PORTION OF CRUDE OIL FLOWING TO THE TANK THROUGH A VENTURI TO PROVIDE A PRESSURE BELOW ATMOSPHERE PRESSURE AT THE VENTURI THROAT, INTRODUCING INTO THE FLOWING CRUDE OIL AT THE THROAT OF THE VENTURI A MASS OF DISCRETE, SPHERICAL, OIL-WETTABLE, GAS-FILLED, HOLE-FREE PARTICLES OF A SOLID MATERIAL INERT TO CRUDE OIL, WHICH PARTICLES HAVE AN AVERAGE DIAMETER FROM 25 TO 250 MICRONS AND HAVE A LIQUID DISPLACEMENT DENSITY OF FROM 0.05 TO 0.5, AND INTRODUCING THE MIXTURE OF CRUDE OIL AND THE MASS OF PARTICLES INTO THE OIL TANK, WHEREUPON THE PARTICLES WILL RISE TO THE SURFACE OF THE OIL AND FROM A FOAM IN WHICH THE PARTICLES WILL OCCUPY ABOUT 20 TO 70% BY VOLUME OF THE FOAM.
Claim 2
Independent Claim
140 words
A METHOD OF INSTALLING A FOAM ON THE SURFACE OF CRUDE OIL IN A TANK WHICH COMPRISES PASSING AT LEAST A PORTION OF CRUDE OIL FLOWING TO THE TANK THROUGH A VENTURI TO PROVIDE A PRESSURE BELOW ATMOSPHERE PRESSURE AT THE VENTURI THROAT, INTRODUCING INTO THE FLOWING CRUDE OIL AT THE THROAT OF THE VENTURI A MASS OF DISCRETE, SPHERICAL, OIL-WETTABLE, GAS-FILLED, HOLE-FREE PARTICLES OF A SOLID MATERIAL INERT TO CRUDE OIL, WHICH PARTICLES HAVE AN AVERAGE DIAMETER FROM 25 TO 250 MICRONS AND HAVE A LIQUID DISPLACEMENT DENSITY OF FROM 0.05 TO 0.5, AND INTRODUCING THE MIXTURE OF CRUDE OIL AND THE MASS OF PARTICLES INTO THE OIL TANK, WHEREUPON THE PARTICLES WILL RISE TO THE SURFACE OF THE OIL AND FROM A FOAM IN WHICH THE PARTICLES WILL OCCUPY ABOUT 20 TO 70% BY VOLUME OF THE FOAM.
References Cited (Backward Citations)
US1678225A
Cited
US2423801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |