US3597329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin falling film,water flashing distillation system
Assignee: Alcoa Corp
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Filing: 1969-03-07
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Granted: 1971-08-03
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Expires: 1989-03-07
Abstract
Abstract FILM-WISE MANNER. VAPOR IS FORMED IN THE SPACES BETWEENTHE VERTICAL SURFACES AND IS REMOVED IN A DIRECTION SUBSTANTIALLY TRANSVERSE TO THE DOWNWARD FALLING FILM FLOW. THE VAPOR SO PRODUCED EXHIBITS A VERY LOW ENTRAINMENT LEVEL. A LIQUID SUCH AS WATER ENTERS A CHAMBER MAINTAINED AT A PRESSURE BELOW ITS SATURATION PRESSURE SO THAT A PORTION OF THE FEED LIQUID IS FLASH EVAPORATED AND A PORTION DISCHARGED AT A REDUCED TEMPERATURE. THE EVAPORTION IS EFFECTED BY DISTRIBUTING THE FEED LIQUID OVER A PLURALITY OF PARALLEL, CLOSELY SPACED AND SUBSTANTIALLY VERTICAL SURFACES UPON WHICH THE LIQUID FLOWS DOWNWARDLY IN FALLING
Inventors
- 👤 Melvin H Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:04
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/06; Y; Y10; Y10S; Y10S203/00; Y10S203/18
Claims Analysis
Total Claims: 0
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References 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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |