US3697383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feedwater heater and strainer arrangement for multiple-effect thin film desalination plant
Assignee: General Electric Co
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Filing: 1970-12-14
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Granted: 1972-10-10
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Expires: 1990-12-14
Abstract
Abstract A vertical double fluted tube evaporator for water desalination has multiple closely-coupled effects with individual feedwater heaters in each effect. Feedwater manifolds in each effect supply feedwater to double fluted tubes through individual porcelain spray nozzles providing thin films on the tubes. The feedwater heaters are fed in series through each effect, while parallel branch lines supply the manifolds via in-line strainers with provisions for blow-down during normal operation if strainer blockage occurs.
Inventors
- 👤 Earle R Weaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:41
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/043; B; B01; B01D; B01D1/00; B01D1/26; Y; Y02; Y02A; Y02A20/00; Y02A20/124; Y10; Y10S; Y10S159/00; Y10S159/08
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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |