Rotating disk still with a hydrodynamically applied thin film
Abstract
Abstract A single-effect still is composed of a chamber which houses a rotating heat- transfer disk mounted on a hollow shaft. Distilland is hydrodynamically spread into a thin film on one side of the rotating disk by a stationary flexible blade. Heating vapor is brought into contact with the other side of the disk. The latent heat released by the condensation of the heating vapor evaporates a fraction of the distilland as a pure vapor leaving a more concentrated residue. Preferably pairs of such disks provide interconnected parallel cavities in which the heating vapor condenses and is withdrawn from the periphery of the cavity by a stationary scoop communication with a central tube going outside of the still. Collected residue is taken outside of the still from the bottom of the chamber.
Inventors
- 👤 B Tleimat
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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |