US3565252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil water separation system for tankers
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1969-02-06
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Granted: 1971-02-23
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Expires: 1989-02-06
Abstract
Abstract In a system for handling tank washings for oil tankers, means for separating oil from water are provided to assure that water passing overboard will not have present therein oil in excess of a predetermined concentration.
Inventors
- 👤 James J Sheehy
- 👤 Peter A Sait
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:04
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
95 words
The system according to claim 1 wherein said tank is adapted to contain a quantity of said oil and water for gravity separation thereof, there being successive layers comprising water, an oil/water mixture forming an interface and oil, said control means including a sensing probe located in said tank at a distance above the bottom thereof for detecting oil concentrations in said interface above said predetermined concentration, means connecting said control means to said pump means for deactivating said pump means when the probe senses an oil concentration in the interface above said predetermined concentration.
Claim 2
Dependent Claim
49 words
The system according to claim 2 in which said pump means comprises two pumps of different capacities, said control means being operably connected to at least the pump of greater capacity so that when said probe senses an excessive oil concentration said pump of greater capacity will be deactivated.
Claim 3
Dependent Claim
80 words
The system according to claim 2 wherein said sensing means is operably connected to detect the presence of an excessive concentration of oil in the output flow from said pump means and said control means is operably connected with said first valve means and said second valve means for shutting off said first valve means and opening said second valve means thereby preventing disposal of water having an excessive oil concentration and causing said flow to return to said tank.
Claim 4
Dependent Claim
71 words
The system according to claim 2 wherein said separator means includes an oil outlet and a water outlet, and a tank adapted for collecting oil is operably connected with said oil outlet, said separator means further includes a coalescer operably connected to said water outlet of said separation mean, said coalescer having an oil outlet operably connected to said collecting tank and a water outlet connected to said waste disposal outlet.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |