US3725206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desalination plant
Assignee: Valuepace Ltd
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Filing: 1970-09-09
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Granted: 1973-04-03
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Expires: 1990-09-09
Abstract
Abstract A desalination plant to distill water from sea water at ambient temperature without the addition of heat, wherein a condenser is formed in an evaporator in heat exchange relation therewith. A blower evacuates the evaporation and transfer steam to the condenser, and two combined liquid-vacuum pumps are provided, one to remove dense brine and air from the evaporator, the other to remove condensate and air from the condenser. A high vacuum is thus produced in the evaporator sufficient to cause boiling at ambient temperature.
Inventors
- 👤 N Foley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:06
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; Y; Y02; Y02A; Y02A20/00; Y02A20/124; Y10; Y10S; Y10S159/00; Y10S159/02; Y10S159/16; Y10S159/42
Claims Analysis
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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) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |