Water purification
Abstract
Abstract A SYSTEM AND METHOD FOR REMOVAL OF OIL, SAND AND OTHER IMPURITIES FROM WATER, WHEREIN WATER CONTAINING SUCH IMPURITIES IS MOVED AT A VERY LOW VELOCITY TO ALLOW HEAVY SOLID PARTICLES TO DROP OUT AND LIGHT SOLID PARTICLES TO FLAT TO THE SURFACE WHERE THEY MAY BE REMOVED, THE WATER THEN BEING PASSED THROUGH A FILTER WILL WHICH IS PREFERENTIALLY WETTED BY OIL SO THAT DIFFUSED OIL PARTICLES IN THE WATER WILL COALESCE ON THE FILTE MATERIAL TO MAKE LARGE OIL PARTICLES WHICH ARE WASHED LOOSE FROM THE FILTER MATERIAL. THESE LARGE OIL PARTICLES ARE THEN DIRECTED UPWARDLY TOWARD AN OIL LAYER ON TOP OF THE WATER, AND THE WATER IS THEN MOVED DOWNWARDLY AT A VELOCITY LOWER THAN THE ESCAPE VELOCITY OF THE OIL PARTICLES, THEREBY ALLOWING THE OIL PARTICLES TO FLOAT UPWARDLY TO THE OIL LAYER. THE WATER IS THEN PREFERABLY PASSED THROUGH A GRANULAR FILTER BED OF GRAPHITE OR THE LIKE BEFORE REMOVED FROM THE CONTAINER AS CLEAN WATER.
Inventors
- 👤 Charles E De Young
Bibliographic Details
Claims Analysis
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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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |