Overflow-type floating skimmer
Abstract
Abstract APPARATUS FOR SKIMMING OIL FROM THE SURFACE OF WATER IN WHICH OIL OVERFLOWING A WEIR DRAINS INTO AN OVERFLOW CONDUIT JOINED TO A COUNTERBALANCING DUCT. A FLOAT SUPPORTS THE JUNCTURE OF THE OVERFLOW CONDUIT AND COUNTERBALANCING DUCT AT A SUBSTANTIALLY CONSTANT POSITION RELATIVE TO THE LIQUID LEVEL. A DRAIN LINE IS CONNECTED TO THE COUNTERBALANCING ARM WHEREBY A DIFFERENCE IN THE RATE AT WHICH LIQUID FLOWS THROUGH THE OVERFLOW CONDUIT AND THE DRAIN LINE CAUSES A CHANGE IN THE LIQUID LEVEL IN THE COUNTERBALANCING DUCT. A CHANGE IN VOLUME OF LIQUID IN THE COUNTERBALANCING ARM ROTATES THE OVERFLOW CONDUIT TO CHANGE THE LEVEL OF THE WEIR AND THEREBY ADJUST THE FLOW THROUGH THE OVERFLOW CONDUIT TO APROXIMATELY THAT THROUGH THE DRAIN LINE. A FLOAT SECURED TO THE COUNTERBALANCING DUCT STABILIZES OPERATION F THE APPARATUS.
Inventors
- 👤 John L Henning Jr
- 👤 Warren J Robicheaux
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1975-11-07 | 1976-05-08 | 1976-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-07 | 1980-05-08 | 1980-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-07 | 1984-05-08 | 1984-11-07 | $7700.00 | Window Closed / Lapsed |