Extracting oil waste
Abstract
Abstract AN APPARATUS FOR REMOVING OIL PARTICLES FROM WATER COMPRISING AN ABSORPTION TOWER CONTAINING A DIFFUSING MEDIUM, A SOLVENT HAVING A HIGHER SPECIFIC GRAVITY THAN WATER AND BEING INSOLUBLE IN WATER, AND A POROUS MATEERIAL WHICH IS PERMEABLE TO WATER AND IMPERMEABLE TO OIL AND SOLVENT. A METHOD FOR REMOVING OIL PARTICLES FROM WATER COMPRISING THE STEPS OF PASSING WATER CONTAINING OIL PARTICLES THROUGH A PARTICULATE DIFFUSING MEDIUM CONTAINING PARTICLES SUCH AS SAND, GRAVEL OR RASCHIG RINGS, AND HIGH SPECIFIC GRAVITY SOLVENT, THE OIL PARTICLES ADHERING TO THE SOLVENT BY A PROCESS OF ABSORPTION, AND THE OIL-FREE WATER DISCHARGING THROUGH A WATER-PERMEABLE POROUS MASS. ELECTRICALLY OPERATED SENSING MEANS IS LOCATED NEAR THE DISCHARGE OF THE OIL-FREE WATER TO VERIFY THAT ADEQUATE SEPARATION IS ACHIEVED AND THE GUARANTEE EFFICIENT RECOVERY OF THE SOLVENT.
Inventors
- 👤 Neil H Wolf
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |