US3356124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control arrangement for a multiple effect evaporator
Assignee: Fives Lille Cail
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Filing: 1965-10-12
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Granted: 1967-12-05
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Expires: 1985-10-12
Abstract
No abstract record available.
Inventors
- 👤 Dambrine Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:13
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/0082; Y; Y10; Y10S; Y10S159/00; Y10S159/18; Y10S159/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
IN A MULTIPLE EFFECT EVAPORATOR ARRANGEMENT, IN COMBINATION: (A) A PLURALITY OF EVAPORATOR EFFECTS ARRANGED IN SERIES AND CONSTITUTING PRINCIPAL EVAPORATING MEANS FOR PARTLY EVAPORATING A SOLUTION FED TO THE FIRST EFFECT IN SAID SERIES, AT LEAST ONE OF SAID EFFECTS BEING INDIRECTLY STEAM HEATED, WHEREBY A FIRST CONCENTRATE IS FORMED FROM SAID SOLUTION, AND A HOT CONDENSATE IS FORMED FROM THE HEATING STEAM BY THE PARTIAL EVAPORATION OF SAID SOLUTION IN SAID ONE EFFECT; (B) AUXILIARY EVAPORATING MEANS FOR PARTLY EVAPORATING A SOLUTION FED TO SAID AUXILIARY EVAPORATING MEANS AND FOR THEREBY FORMING A SECOND CONCENTRATE; (C) HEAT ACCUMULATOR MEANS CONNECTED TO SAID ONE EFFECT FOR RECEIVING SAID CONDENSATE AT A PREDETERMINED PRESSURE; (D) CONDENSATE EVAPORATOR MEANS INTERPOSED BETWEEN SAID ACCUMULATOR AND SAID AUXILIARY EVAPORATING MEANS FOR EVAPORATING SAID CONDENSATE AT A PRESSURE LOWER THAN SAID PREDETERMINED PRESSURE, AND FOR TRANSFERRING THE EVAPORATED CONDENSATE TO SAID AUXILIARY EVAPORATING MEANS FOR HEATING THE SOLUTION FED THERETO; AND (E) CONTROL MEANS RESPONSIVE TO THE CONCENTRATION OF ONE OF SAID CONCENTRATES FOR CONTROLLING THE RATE OF SAID EVAPORATION OF SAID CONDENSATE.
Claim 2
Dependent Claim
179 words
IN A MULTIPLE EFFECT EVAPORATOR ARRANGEMENT, IN COMBINATION: (A) A PLURALITY OF EVAPORATOR EFFECTS ARRANGED IN SERIES AND CONSTITUTING PRINCIPAL EVAPORATING MEANS FOR PARTLY EVAPORATING A SOLUTION FED TO THE FIRST EFFECT IN SAID SERIES, AT LEAST ONE OF SAID EFFECTS BEING INDIRECTLY STEAM HEATED, WHEREBY A FIRST CONCENTRATE IS FORMED FROM SAID SOLUTION, AND A HOT CONDENSATE IS FORMED FROM THE HEATING STEAM BY THE PARTIAL EVAPORATION OF SAID SOLUTION IN SAID ONE EFFECT; (B) AUXILIARY EVAPORATING MEANS FOR PARTLY EVAPORATING A SOLUTION FED TO SAID AUXILIARY EVAPORATING MEANS AND FOR THEREBY FORMING A SECOND CONCENTRATE; (C) HEAT ACCUMULATOR MEANS CONNECTED TO SAID ONE EFFECT FOR RECEIVING SAID CONDENSATE AT A PREDETERMINED PRESSURE; (D) CONDENSATE EVAPORATOR MEANS INTERPOSED BETWEEN SAID ACCUMULATOR AND SAID AUXILIARY EVAPORATING MEANS FOR EVAPORATING SAID CONDENSATE AT A PRESSURE LOWER THAN SAID PREDETERMINED PRESSURE, AND FOR TRANSFERRING THE EVAPORATED CONDENSATE TO SAID AUXILIARY EVAPORATING MEANS FOR HEATING THE SOLUTION FED THERETO; AND (E) CONTROL MEANS RESPONSIVE TO THE CONCENTRATION OF ONE OF SAID CONCENTRATES FOR CONTROLLING THE RATE OF SAID EVAPORATION OF SAID CONDENSATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |