Patent US5376994A successfully refreshed from Google Patents.
Patent US3289736A successfully refreshed from Google Patents.
US3289736A
Expired / Lapsed
US
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Temperature control for evaporation system
Assignee: Rosenblad Corp
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Filing: 1964-06-30
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Granted: 1966-12-06
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Expires: 1984-06-30
Abstract
No abstract record available.
Inventors
- 👤 Axel E Rosenblad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:46
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/0082; Y; Y10; Y10S; Y10S203/00; Y10S203/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A SYSTEM HAVING A CONDENSER FED INTERMITTENTLY WITH FLASHED VAPORS, AN ACCUMULATOR TANK RECEIVING CONDENSATE FROM SAID VAPORS ISSUING FROM THE CONDENSER, SAID ACCUMULATOR TANK BEING OF SUCH CHARACTER AS TO HOLD THE CONDENSATE THEREIN WITH THE CONDENSATE AT A MARKED TEMPERATURE DIFFERENTIAL BETWEEN THE CONDENSATE AT DIFFERENT FIRST AND SECOND SPACED ZONES THEREIN, A HEATED SURFACE TYPE EVAPORATOR HAVING AN INLET PORT CONNECTED TO RECEIVE LIQUID FUNCTIONING AS A SOURCE OF HEAT FOR THE EVAPORATOR FROM A HOT ZONE OF THE ACCUMULATOR TANK AND AN OUTLET PORT TO DISCHARGE SUCH LIQUID, MEANS FOR INTRODUCING A PROCESS LIQUOR INTO THE EVAPORATOR IN HEAT EXCHANGING RELATIONSHIP WITH SAID HEATING LIQUID IN THE EVAPORATOR, MEANS DISPOSED IN ADVANCE OF SAID INLET PORT FOR ADDING HEAT TO THE HOT LIQUID FED TO THE EVAPORATOR AND FUNCTIONING AS A SOURCE OF HEAT THEREFOR SO AS TO MAINTAIN THE TEMPERATURE OF SUCH HOT LIQUID AT A DESIRED HIGH LEVEL, AN INDIRECT HEAT EXCHANGER, A CONDUIT CON-
Claim 2
Independent Claim
161 words
A SYSTEM HAVING A CONDENSER FED INTERMITTENTLY WITH FLASHED VAPORS, AN ACCUMULATOR TANK RECEIVING CONDENSATE FROM SAID VAPORS ISSUING FROM THE CONDENSER, SAID ACCUMULATOR TANK BEING OF SUCH CHARACTER AS TO HOLD THE CONDENSATE THEREIN WITH THE CONDENSATE AT A MARKED TEMPERATURE DIFFERENTIAL BETWEEN THE CONDENSATE AT DIFFERENT FIRST AND SECOND SPACED ZONES THEREIN, A HEATED SURFACE TYPE EVAPORATOR HAVING AN INLET PORT CONNECTED TO RECEIVE LIQUID FUNCTIONING AS A SOURCE OF HEAT FOR THE EVAPORATOR FROM A HOT ZONE OF THE ACCUMULATOR TANK AND AN OUTLET PORT TO DISCHARGE SUCH LIQUID, MEANS FOR INTRODUCING A PROCESS LIQUOR INTO THE EVAPORATOR IN HEAT EXCHANGING RELATIONSHIP WITH SAID HEATING LIQUID IN THE EVAPORATOR, MEANS DISPOSED IN ADVANCE OF SAID INLET PORT FOR ADDING HEAT TO THE HOT LIQUID FED TO THE EVAPORATOR AND FUNCTIONING AS A SOURCE OF HEAT THEREFOR SO AS TO MAINTAIN THE TEMPERATURE OF SUCH HOT LIQUID AT A DESIRED HIGH LEVEL, AN INDIRECT HEAT EXCHANGER, A CONDUIT CON-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |