US3616835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evaporators having hollow platelike vertical heat transfer elements and overhead nozzles
Assignee: C O C E I
•
Filing: 1969-02-11
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Granted: 1971-11-02
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Expires: 1989-02-11
Abstract
Abstract AN INSTALLATION FOR THE CONTINUOUS EVAPORATION OF A SOLVENT AND THE CONTINUOUS CONCENTRATION OF AT LEAST ONE SUBSTANCE IN SOLUTION IN THE SAID SOLVENT, COMPRISING A HEAT-EXCHANGER WHICH SERVES AT THE SAME TIME AS A HEATER AND AS CONCENTRATION DEVICE, THE HEAT-EXCHANGER COMPRISING A PLURALITY OF PARALLEL EXCHANGE ELEMENTS OVER WHICH A DISTRIBUTOR UNIT CAUSES THE SOLUTION TO BE TREATED TO STREAM, SAID UNIT BEING PROVIDED FOR THE PURPOSE WITH AS MANY NOZZLES AS THERE ARE EXCHANGE ELEMENTS.
Inventors
- 👤 Francois Laurenty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:35
CPC Classifications
F; F28; F28D; F28D9/00; F28D9/0006; B; B01; B01D; B01D1/00; B01D1/22; B01D9/00; B01D9/0018; B01D9/0036; B01D9/0059; Y; Y10; Y10S; Y10S159/00; Y10S159/25
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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |