Device for separating foam into its liquid and gaseous phases
Abstract
Abstract A vessel accommodates material to be processed, including foam, and which material is to be protected against contaminants from the exterior of the vessel. A rotatable shaft extends through an opening in the vessel into the latter and carries within the vessel a foam separator which effects foam separation into the liquid and gaseous phases when the shaft is rotated. A drive engages the shaft exteriorly of and spaced from the opening in the vessel for rotating the shaft. Wall means surrounds the shaft intermediate the opening in the vessel and the drive and forms a chamber about the surrounded portion of the shaft. A pair of sliding ring seals are provided on the shaft closing the chamber with respect to the opening in the vessel as well as with respect to the drive. Means is provided for circulating a flowing medium through the chamber to thereby prevent the passage of contaminants from the drive into the chamber and from the latter through the opening into the vessel.
Inventors
- 👤 Hans Muller
Bibliographic Details
Claims Analysis
Total Claims: 9References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |