US3730848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-stage flash evaporator for distilling brines
Assignee: BEAIRD INDUSTRIES Inc
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Filing: 1970-08-21
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Granted: 1973-05-01
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Expires: 1990-08-21
Abstract
Abstract This application covers a flash evaporator having two flash stages connected in series and condensing stages located between the flash stages, the condensing stages being stacked on the other. The first condensing stage including an after condenser and the second condensing stage an integral distillate cooler. In addition, a heater is integrally mounted in the upper portion of the first flash stage. An evaporator, in accordance with the invention, presents no hot walls for salt buildup. Vapor and distillate flow countercurrent to infeed.
Inventors
- 👤 V Kowalski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:26
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/06; Y; Y02; Y02A; Y02A20/00; Y02A20/124
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) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |